Discover new business ideas. Every Monday.

The source

Well, I just crossed $4k MRR and it's officially making more money than my 9-5 job which is crazy to think.

What's out there

OpenTweet, built as a side project, reached $4k MRR after one year, with 250 paying subscribers and more than 10k registered users, and 0 ads. The post drew 326 upvotes and 120 comments.

How to build

The opening is real because a tool built for one person's own use grew to 250 subscribers with no ads, mostly from SEO pages and AI assistants recommending it. Build a version that adds other networks such as LinkedIn and Bluesky, or AI drafting and analytics, so it serves a bigger market than X alone. Start the lowest plan at $19 a month, since the author found buyers accepted the higher price and read it as quality. Find first buyers by publishing SEO and AEO pages that answer how to schedule posts, and by talking directly with early users in a community channel.

The source

i grew my product to $200K ARR, and these are the 3 things that helped me get there.

What's out there

Pumpgtm, the author's product, grew to $200K ARR this year, and the author says they closed hundreds of customers, including founders in the Y Combinator ecosystem. The post gives no user counts or pricing for the qualification tool itself, only that the team built it in house.

How to build

The opening is real because the author says open booking funnels fill calendars with curious people, and their fix was an internal tool that reads who prospects follow, like and comment on, plus qualifying questions. Build it as a standalone product that plugs into Calendly, Cal.com and typeform style booking flows, and returns a fit score before the slot is confirmed. Charge a monthly fee per seat or per screened lead, starting around a modest flat plan so a founder pays it back with one saved call. First buyers are technical founders and agency owners in sales communities like Skool groups, and in the founder subreddits where this post was shared.

The source

Our latest Meta campaigns started bringing in paying customers consistently, we doubled our MRR in a month, and recently crossed $1K MRR on Stripe.

What's out there

Picmim, an AI social media management platform for small businesses, doubled its MRR in a month and recently crossed $1K MRR on Stripe, driven by Meta ad campaigns. The founders say bugs and UX issues piled up, and they are now worried about churn on the way to $5K MRR.

How to build

The opening is real because paying customers arrive through Meta ads, yet the founders admit the product has bugs, confusing workflows and uneven AI quality, which is where churn starts. Build a narrower version that does one job very well, such as a weekly batch of ready-to-post content for one type of business, with almost no setup and scheduling built in. Charge a simple monthly subscription and test the price against what a freelancer social media manager would cost. Find the first buyers the same way Picmim did, with Meta ads aimed at small business owners, and in local business groups.

The source

Numbers, because this sub likes numbers: 57 signups, 31 verified, 23 connected a platform, 16 posted, 4 pay ($54 MRR).

What's out there

Smart Post Studio, 8 months in, has 57 signups, 31 verified, 23 connected a platform, 16 posted and 4 pay for $54 MRR. Signup to paid conversion is about 10%, but volume is low and 41 signups never posted.

How to build

The opening is real because 4 of 57 signups already pay, so people will buy a scheduler that keeps video quality local. Build the narrower version: pick one platform pair such as YouTube Shorts, TikTok and Reels, and make onboarding finish with a first scheduled post in minutes. Keep pricing near the $19 plan, with a cheaper solo tier to lift volume. Find the first buyers in creator communities, video editor forums and r/buildinpublic style threads where people complain about cloud schedulers.

The source

Organic traffic went from almost nothing to a few hundred visits a month, growing steadily.

What's out there

The author built 30+ free calculators, including LTV:CAC, churn, MRR growth and Amazon FBA profit, and reports a few hundred organic visits a month with no revenue yet. Average session time is 3 to 4 minutes with a bounce rate around 40%, and the top 5 calculators drive 70% of traffic.

How to build

The opening is real because calculators beat 1500-word blog posts on engagement, and the author reports that rich snippets and long-tail searches like "MRR growth calculator" helped them outrank older sites. Build a better version by picking keywords first, keeping each tool to 3 or 4 inputs and one clear answer, and adding a save or export feature, or a paid pro tier with saved scenarios and team sharing. Revenue is unproven here, so test cheap monetization such as sponsored placements from SaaS tools or a lead form on the highest-traffic pages, and a pro plan at a low monthly price. First visitors come from Google search, so start with niches the author has not covered, such as agencies, creators or local services, and link the tools together.

The source

hey, so this month i launched my 11th app Coursium, and the first week went pretty well.

What's out there

Coursium, the author's 11th app, made $3k in its first week, with 20 UGC creators onboarded at about $2.50 CPM and one account hitting 100k views on day one. The post has 23 upvotes and 9 comments, and the author admits views alone do not prove profit.

How to build

The opening is real because the author stitches together many separate tools (Codex, Articuler, Pixverse, Geelark, ManyChat) by hand, and a single product doing it would save real time. Build one workflow that finds high view creators, drafts outreach for approval, generates video variations from a hook analysis prompt, and sends app links through DM automation. Charge a monthly subscription, or a fee per active campaign, since buyers already pay for creators and tools. Find the first buyers in app developer communities and in subreddits like r/EntrepreneurRideAlong, where people share app launches.

The source

And eventually, it crossed **$1600+ in revenue till date.**

What's out there

Clickcast, built by a CS student with zero budget, launched in February 2026 and passed $1,600 in revenue. The post got 19 upvotes and 5 comments, so the proof is small but real.

How to build

The opening is real because InVideo and Canva turn projects into generic slideshow style videos, while this author found nothing that actually understood a website. Build a version that keeps the URL to video flow but adds product demo recordings, vertical and square exports for each social platform, and brand colors pulled from the site. Charge per video or a low monthly plan, around the price of a single freelancer clip. First buyers are on r/SaaS, Product Hunt launch days, X and LinkedIn, where makers already post launches and complain about video effort.

The source

First signup came in April. By the end of July I had 28. This week it passed 1,000.

What's out there

ReelDrop passed 1,000 signups since April, with 141,000+ DMs sent and 36,955 button taps. Revenue is still small: about $2000 CAD net in two months and around $400 MRR after cutting the price from $19.99 to $9.

How to build

The opening is real because roughly 1 in 3 people who get a DM tap the link, far better than a link in bio, and the demand is clear from 1,000+ signups in months. Build a version that handles the 24-hour messaging window with smart in-window follow-ups, shows a reply inbox for the 18,485 people who answer the bot, and adds TikTok or Facebook support. Charge about $9 a month, since the author found most users want only one or two features, and offer a yearly deal. Find first buyers in creator communities, in comments under Instagram growth pages, and through agencies that run pages for clients.

The source

I posted about this a few times last month on my X account, and it sold almost $4K as Skill and as a service.

What's out there

Flavio Amiel's citation hub skill sold almost $4K in about a month as a Skill and as a service, with 10 copies selling out in a week before 10 more were opened. The post drew 42 upvotes and 28 comments.

How to build

The opening is real because AI writers keep hunting for statistics to cite, and a well made data page keeps collecting links for years. Build a version that works beyond Claude Code, as a web app or plugin for ChatGPT and other agents, with chart generation and tracking of which pages AI tools cite. Charge a one time fee per skill plus a higher price for done-for-you pages, since the author sold both. The first buyers are SEO communities and X audiences, where the author found his own.

The source

Two years later, InteractiveFunnel has handled 500k + leads for customers around the world.

What's out there

InteractiveFunnel, a quiz-funnel SaaS, has handled 500k+ leads for customers around the world in two years. The post gives no revenue or user count, and the author says distribution is now the main problem; Reddit brought most early customers.

How to build

The opening is real because customers kept building web-to-app flows the author never planned, which shows demand beyond plain lead capture. Build a narrower version aimed at web-to-app funnels, with templates, app store deep links and attribution integrations built in. Charge a monthly subscription tiered by leads captured, and test pricing with early users since the post gives none. Find first buyers in the same place the author did, Reddit communities for SaaS and marketing, plus mobile app growth groups.

The source

And now we've finally passed $1K MRR on Stripe.

What's out there

Picmim, an AI social media platform, reached $1K MRR on Stripe after 7 months, a pivot and several redesigns. Its founders spent almost €1,000 on ads and almost €3,000 on UGC that brought one paying customer, and churn and bugs are still open problems.

How to build

The opening is real because agencies find customers paying €30 to 50 a month uneconomic, and Picmim only got traction once it sold the outcome instead of AI features. Build a narrower version for one local trade, such as restaurants or salons, with posting, captions and image creation done for the owner with minimal setup. Charge about €30 to 50 a month, with no free trial, which is the price range and approach that worked for Picmim. Find first buyers locally and through targeted Meta Ads with a clear message, since the post says the home market and a clear message worked far better than UGC reach.

The source

**++We also crossed $2,000 in total sales.**

What's out there

SignalSumo launched two months ago and has crossed $2,000 in total sales, with estimated ARR around $24K. It saw 1,011 visitors and 1,563 pageviews in a day, mostly from Google organic search. The post got 19 upvotes and 29 comments.

How to build

The opening is real because a solo builder got to $2K in sales in 60 days by pricing under established SEO tools. Build a narrower version that does one SEO job very well, such as audits or keyword tracking, and add integrations or agency reports to reach a bigger market. Charge a low monthly plan with an annual discount, since the author is chasing $5K MRR and still working on conversion. Find the first buyers where the author did: Google organic search, plus SaaS and indie communities that discuss SEO tools.

The source

I have replaced the need for them to login to any of their online platforms and do ANYTHING.

What's out there

The author's AI-native guidance product reached $1k revenue in 40 days, with customers from e-commerce businesses to small sushi restaurants. The post gives no user count or pricing, so the evidence is early; it drew 28 upvotes and 25 comments.

How to build

The opening is real because owners of small shops and restaurants want marketing handled, not another dashboard to learn. Build a narrower version for one vertical, such as restaurants or Shopify stores, with agents that post, reply to reviews and update listings, plus a weekly summary of what was done. Charge a flat monthly fee, since the post gives no pricing, and test a price against the cost of a freelancer. Find first buyers in local business groups, Shopify communities and restaurant owner forums, offering a free first week of done-for-you tasks.

The source

**CWS Listing Conversion Rate:** **46.7%** (1,720 store page views resulting in 803 installs).

What's out there

Google Ads Competitor Analyzer reached 1,000 active users in about 266 days, with 803 installs from 1,720 store page views (46.7% conversion). It had 247 uninstalls, about 30.8% churn; no revenue is reported.

How to build

The opening is real because a listing named around the search phrase 'Google Ads competitor analysis' converted 46.7% of store visitors with only about 146 impressions a day, so demand for this exists. Build a stronger version that saves ads over time, tracks changes in competitor copy, and exports reports for agency clients, and aim at the US first, where churn was about 6.5%. Charge a monthly subscription, for example a paid tier for history and reports on top of a free core, since the post gives no pricing. Find first buyers through Chrome Web Store search, a free micro-tool like a headline analyzer (38s average engagement vs 12 to 15s on landing pages), and marketing communities.

The source

* About 220 signups * 5 paying users * $64 MRR

What's out there

The authors' tool reached about 220 signups, 5 paying users and $64 MRR by day 12. Most paying users came from one r/SideProject launch post, which brought 39 signups the next day; daily posting on X moved no revenue.

How to build

The opening is real because the post shows strangers paying within 12 days, and one feature request (reading images in posts) turned a user into a buyer right away. Build a narrower version focused on one source, such as Reddit, with leads scored and pushed to a CRM or Slack so it fits a workflow. Charge a flat monthly fee, since the authors' $64 from 5 users suggests low entry pricing, and test a higher tier for teams. Find first buyers in r/SideProject, r/SaaS and by emailing free users of existing tools to ask why they have not paid.

The source

A couple of months ago, I shared that LandingBoost had reached 700 signups and roughly $1,200 in revenue.

What's out there

LandingBoost has almost 1,000 signups and nearly $1.6k in revenue, up from 700 signups and about $1,200 two months earlier. PageHum, a website monitoring tool, now shows its saved scores and first recommended edit in its own dashboard.

How to build

The opening is real because a paying user asked for retrieval without credits, webhooks and API setup, which shows audits are wanted inside other tools. Build a version that is integration first: an audit API, an MCP server for coding assistants, and plugins for AI site builders, with one-click fix suggestions in the editor. Charge a monthly plan with a scan allowance for founders, plus usage-based API pricing for tool makers. Find first buyers among builders of monitoring, analytics and AI site tools, and in communities where people ship landing pages with AI editors.

The source

I could get super technical but overall these 5 main points have helped us crack 6 figure ARR.

What's out there

The author's own outbound product reached $363,000 CAD ARR in 8 months, and the team uses it to win its own clients. Its 12 LinkedIn triggers via HarvestAPI book about 30 meetings a month; the post drew 11 upvotes and 28 comments.

How to build

The opening is real because the author's own outbound engine produced six figure ARR in 8 months, so agencies clearly pay for done-for-you outbound infrastructure. Build a narrower version: LinkedIn competitor engagement triggers that feed a lead list, with a cold-offer and copy template library and a prompt to call every positive reply, since that lifted their reply to booked meeting rate 5x. Charge a monthly subscription per seat or per client workspace, with agencies as the higher tier. Find first buyers in r/SaaS, LinkedIn outbound communities and agency owner groups by offering to run their first trigger setup.

The source

Today, that tool is making more than what I earn on my 9-5 and I am not stopping here.

What's out there

OpenTweet, built by the post's author, started in October 2025 and began making money in February 2026. The author says it now earns more than their 9-5 salary, with a goal of $5k MRR, though churn is about 36% and the exact revenue is not stated in the post.

How to build

The opening is real because the author reached paying customers in about four months using only SEO, AEO and posting on X, and the post says it beats a day job salary. The weak spot is churn at roughly 36%, so build a version that retains better, for example with analytics, templates, a content calendar, and support for more networks than X alone. Pricing is not given in the post, so test a low monthly plan and an annual option to cut churn. Find the first buyers by DMing founders on X, as the author did, and by publishing SEO pages for competitor and trend searches.

The source

My co-founder built a tool to help me which eventually developed into [SocialCrawl](http://www.socialcrawl.dev).

What's out there

SocialCrawl reached $12.5k/month with its fifth product, got its first paying customer within 48 hours of a two week launch, and was featured on Indie Hackers. The Reddit post drew only 5 upvotes and 2 comments, and the post does not give user counts.

How to build

The opening looks real because a founder with this exact pain turned a quick internal tool into $12.5k/month, and early customers came through founder communities. Build a narrower version for one use case, such as competitor content tracking or trend research for agencies, with saved searches, exports and a clean API. Price it by usage, with a low entry plan and a higher tier for teams. Find the first buyers in founder communities, marketing forums and agency groups, and talk to them before adding features, as the author says they should have.

The source

We then sold the concept to a marketing open call for a pretty decent sum.

What's out there

Freakyyy Letters, a PWA digital archive on blockchain, got one repost from a celebrity after months of near daily seeding to celebs like Taylor and Ariana. The post gives no user or revenue numbers; the concept sold to a marketing open call for an undisclosed "pretty decent sum", and the post has 4 upvotes and 7 comments.

How to build

The opening is real because the only proof is a sale of the concept for an undisclosed sum, which shows brands value the hook more than there is proven consumer demand. Build the letter product without the blockchain layer: a simple web app with sealed delivery dates, recipient notifications and reminders as the core. Charge a few dollars per letter for consumers, and sell a campaign package to brands and agencies that want a sealed letter stunt for fans or customers. Find first buyers by seeding letters to public figures daily as the author did, and by pitching marketing open calls and small agencies.

The source

Currently I have 13 monthly subscribers and 9 on the 2-week pass.

What's out there

Group Contacts Exporter reached 700 installs as a free extension, then added a paywall and now has 13 monthly subscribers and 9 on the 2-week pass. Views fell after the paywall, from 50 to 70 per day, and the author calls it the most competitively priced option in its space.

How to build

The opening is real because people pay even after a paywall cut traffic, and the price is low at $1.99 for a week or $4.99 for a month. Build a better version that works across more group platforms, exports to CRM tools and spreadsheets, and adds scheduled exports, then charge a bit more for team plans. The author's weak spot is discovery, so go where buyers search: Chrome Web Store keywords, how-to pages on exporting group contacts, and communities of marketers and group admins. Offer a free trial of a small export so views turn into paid users.

The source

In the first 10 days, it brought in more revenue than all 12 of my previous products combined over the past 2 years.

What's out there

FlexQueries charges per use (keyword research about $0.05, a full site audit about $0.48) with a balance that never expires. In its first 10 days it earned more than the author's 12 earlier products did in 2 years, with over 100 signups in week one. The post gives no revenue figure.

How to build

The opening is real because incumbents sell $100 to $200 monthly plans to people who use them a few days a month, and one team paying $500+ a month switched after a cold email. Build a similar credit based tool, then go further with rank tracking, content briefs, and integrations with Search Console or a CMS. Charge per task with prepaid balances that never expire, and offer free credit with no card. Find first buyers by cold emailing solo SaaS founders, as the author did with 100 of them, and in indie hacker and SideProject communities.

The source

I'm building this mostly after school, and still figuring a lot of this out in real time.

What's out there

Markoby reached 400 signups and 20 paying users within days of its first posts, at ₹299/month after a price cut, with a free trial that pulled more signups than the paid version. Thin but real: the post is 2 upvotes and 4 comments, and the author admits the UI is weak.

How to build

The opening is real because 20 of 400 signups paid even with a rough UI, and users said the onboarding interview was the best part. Build a sharper version with a polished interface, plans tied to a content calendar, and drafts ready to post for each channel, plus niche versions such as plans for developer tools or ecommerce. Charge a low monthly fee near what Markoby does, with a free one project trial and no card, since the post says price was the real barrier. Find first buyers where founders already ask for marketing help: r/microsaas, r/SaaS, Indie Hackers and X build in public threads.

The source

I've collated this data and it's led to some interesting conclusions you may find useful.

What's out there

SiteTell is the source product. Originality.ai and GPTZero detect AI authorship but do not flag structural genericness or generate per-instance replacements.

How to build

Build a crawler that fetches every page of a site. Run a curated ruleset against each page: structural rules (closing paragraph adds no new information, uniform paragraph length, rule-of-three enumeration, em-dash frequency), vocabulary rules (known AI phrasings), and a sentence-portability test (would this sentence sit unchanged on a competitor's site?). Flag each instance with the rule that fired and generate a one-sentence replacement. Export as CSV or JSON for an automation agent to apply at scale. Offer a no-signup free scan.

The source

Built it because I got tired of the tab-switching myself, running search reporting for more than one site.

What's out there

Google Looker Studio (free, DIY), Agency Analytics, SE Ranking, Vantage (the source product at $39/month per client).

How to build

Use Google Search Console API with OAuth (where the OAuth consent also serves as login, as the source describes). Pull impression, click, CTR, and position data per property. Present a unified dashboard with property switching and cross-property anomaly detection. Price per connected property or per agency seat. Add account isolation from day one.

The source

the ones that read like a template got nothing, and I sent a lot of templates before I figured that out.

How to build

Cross reference creator handles against found contact routes to filter out unreachable ones, then throttle outbound messages on a randomized human like schedule instead of a fixed interval.

The source

Curious what people actually check first before touching ad spend.

How to build

Pull Shopify conversion rate by traffic source and the ad platform's CTR and CPC through their APIs, then auto flag whether the drop is upstream in the ad account or downstream on the site.

The source

We could add more FAQs, rewrite the product copy or build comparison pages, but I am not sure what is worth doing first.

How to build

Mine reviews and support tickets for the best for, works well with and trade off language shoppers actually use, then generate that block and matching FAQs for each product page.

The source

Cold emails that read like blog intros. Partner pitches that opened with "In today's fast-paced landscape."

How to build