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Marketing›Indie SaaS & digital products

Finding small-product ideas — build to find signal, scratch your own itch, ride a moment

Where the ideas behind Marc Lou's ~30 products and Starter Story case studies came from — personal pain (a $1.6k Stripe invoice fee → Zenvoice $15k), DMs asking for something you built for yourself, spin-offs of previous products, remixes of games you love, trends and timely conversations — plus Marc's quit rule of ~1,000 visitors.

Updated 2026-10-24·6 sources·ideasvalidationindie-hackingsaasside-projects

Finding small-product ideas

TL;DR

  • Marc Lou: stop looking for a brilliant idea — build anything, make noise, and signal (real problems people pay for) shows up.
  • Best sources in his portfolio: your own pain, people asking for something you made for yourself, and spin-offs of what you built before.
  • Remix something you love for your niche (Geosports = MapTap + sports trivia).
  • Timing beats novelty: heatwave AC alerts, a viral tweet about fake revenue screenshots.
  • Kill fast: after ~1,000 visitors Marc says he knows whether a product can work; pick products whose marketing you’ll enjoy.
  • Counterweight: Starter Story’s guests stress solving a painful problem verified with customers, not building in isolation.

Details

Personal pain. Zenvoice: Marc found Stripe charged 0.4% per transaction for PDF invoices — $1.6k lost in a year — and built the fix, which made $15k (a “10x” on the loss).12 ByeDispute came from being banned overnight by Stripe after one customer’s repeated payments.3 DataFast came from needing analytics joined with revenue across his portfolio.4

Noise → signal. IndiePage started as his own portfolio page in his Twitter bio; people DMed asking for the same, so he productised it ($43k).5 PoopUp existed because visitors kept commenting on Zenvoice’s notifications and a friend said “make a product out of it”. Every idea, he says, came from a previous product.67

If you still have nothing. Try a new hobby or talk to new people and look for app ideas there, or rebuild something you use (habit tracker, alarm clock).8

Remix a favourite. Frank’s brother showed him MapTap; driving home from a wedding he imagined a sports version, built Geosports that weekend, and it reached ~$40k/month in three months.910

Ride the moment. Pieter Levels tweeted that too many founders fake revenue screenshots; Marc built TrustMRR (verified Stripe revenue) in under 24 hours and quote-tweeted him.11 Cyril’s AC-restock alerts sold during a European heatwave.12

Kill or keep. Marc’s rule: if after ~1,000 visitors the numbers aren’t there, move on — expectations grow with time invested and lead to burnout. Also move on if you see potential but can’t market it.8 He dropped a healthy-restaurant database when he estimated ~$50k of data and AI costs, and built a small pesticide-ranking MVP for fun instead.1314

The opposite emphasis. Gaurav (Fastlane, $69k/month) started too wide — an all-in-one AI marketing tool (SEO, LLM visibility, Reddit, short-form) — and only found the product after customer calls narrowed it to short-form video.15 See Customer calls at scale — Fastlane's 2,000 calls behind $69k MRR.

Disagreements / caveats

  • Marc’s “ideas don’t matter, ship volume” works with a distribution engine (big audience, launch skills); Starter Story’s guests and the presell approach in Test demand with ads before building the app (pre-sell) put validation first.
  • Several “own pain” ideas (ByeDispute, WorkbookPDF) earned little — personal pain is no guarantee of a market or of a channel you can work.

See also

Footnotes

  1. I made these 10 SaaS (and earned $237,631) @ 13:18 — Marc Lou ↩

  2. I made these 10 SaaS (and earned $237,631) @ 14:38 — Marc Lou ↩

  3. I made these 10 SaaS (and earned $237,631) @ 10:28 — Marc Lou ↩

  4. I made these 10 SaaS (and earned $237,631) @ 20:21 — Marc Lou ↩

  5. I made these 10 SaaS (and earned $237,631) @ 05:14 — Marc Lou ↩

  6. I made these 10 SaaS (and earned $237,631) @ 17:57 — Marc Lou ↩

  7. I made these 10 SaaS (and earned $237,631) @ 18:45 — Marc Lou ↩

  8. I made these 10 SaaS (and earned $237,631) @ 22:52 — Marc Lou ↩ ↩2

  9. I built this website in 8 hours with Claude. Now it makes $40K/month @ 06:27 — Frank Mickelsmith ↩

  10. I built this website in 8 hours with Claude. Now it makes $40K/month @ 07:13 — Frank Mickelsmith ↩

  11. I made an app in 24 hours and $20,378 the next day @ 00:00 — Marc Lou ↩

  12. My SaaS hit $4,000/day (solo) @ 06:04 — Marc Lou ↩

  13. $100,000/month solo @ 12:46 — Marc Lou ↩

  14. $100,000/month solo @ 13:35 — Marc Lou ↩

  15. How This SaaS Hit $69K/Month In Just 2 Months @ 02:56 — Gaurav ↩