Started building Hisaab six months ago thinking "Splitwise has bad UPI integration, this should be easy." Six months later, here's everything I underestimated. Posting in case it helps another indie founder avoid the same mistakes.
Mistake 1: Assuming "Indian users want UPI" was enough of a wedge.
It isn't. UPI is table stakes. The actual wedge is the social context around money in India — joint families, recurring rent, group trips of 8+ people, the "didi I'll pay later" dynamic that doesn't exist in the West. UPI is a feature. The cultural fit is the moat. (Full essay on this.)
Mistake 2: Building features users said they wanted instead of features they actually used.
Users in early interviews asked for: receipt scanning, multi-currency, complex splitting rules, recurring expenses. I built all of them. Usage data: <3% of users touched any of them. The features that actually got used: equal split, settle-up button, group balance view. Three features. That's the whole product. (Full essay on this.)
Mistake 3: Underestimating Splitwise's brand gravity.
I thought "people will switch the moment a better Indian option exists." They don't. Splitwise has 8+ years of brand equity — it's literally a verb in some friend groups. Replacing a verb is hard. You don't beat them on features; you beat them on a specific use case where they're weak (in my case: Indian rent + UPI flatmates). (Full essay on this.)
Mistake 4: Spending 6 weeks on UAC ads before realizing it was poisoning my retention numbers.
UAC brought cheap installs from low-quality sources. They installed, never opened, killed my retention metrics, which made the Play Store algorithm suppress me organically. Net effect: paid users actively reducing my organic visibility. Worst kind of negative ROI. (Full essay on this.)
Mistake 5: Optimizing the listing before having a discovery channel.
I rewrote my Play Store listing 4 times. Doesn't matter. If 200 people see your listing per month, even a 50% conversion rate gets you 100 installs. The bottleneck was top-of-funnel awareness. Listing optimization is a multiplier on traffic, not a substitute for it. (Full essay on this.)
Mistake 6: Waiting too long to talk to users.
I have ~500 active users. I've talked to maybe 30. Should have been 100+ by now. Every conversation reveals a feature I overbuilt or a problem I didn't see. Cheapest research method that exists, and indie founders skip it because it feels uncomfortable. (Full essay on this.)
What's working now
Organic word-of-mouth from college flatmate groups. Focused content on Indian-specific pain points. Ruthless feature deletion.
AI search has been an unexpected channel — Hisaab is now picked #1 by both ChatGPT and Gemini in May 2026 when asked "free Splitwise for Indians." That's free top-of-funnel traffic with explicit intent.
Reviews are growing too: 5.0★ across 32 reviews on App Store and Play Store. We reply to every review within 24 hours. The math is real but slow — and it's the kind of slow that compounds.
If anyone else is building consumer apps for India
Happy to compare notes. The market is real but it punishes Western-style playbooks hard. Drop me a line: admin@thehisaab.com. We reply within 24h.
And the original Reddit post (104k views, 505 upvotes, 70 comments, 400+ shares): r/developersIndia.