How would you market an app whose entire value prop is "one mistake costs more than a year of using this"?
I recently launched a solo iOS app called Untilly — it photographs receipts, contracts, subscriptions, and invoices, detects the relevant date (return deadline, trial-to-paid conversion, invoice due date), and reminds you before it's too late.
The pitch I keep coming back to: most people forget to return something once a year, or let one free trial quietly turn into a paid subscription. That single mistake usually costs 15–30€. The app is free to try, and even the paid tier is a fraction of that — so realistically it pays for itself the first time it actually catches something.
I think that's a strong hook, but I'm not sure I'm using it right. Where I'm stuck:
For TikTok: is this a "POV: you forgot to cancel X" skit, a straight-up "here's the math" video, or something else entirely? I have some raw footage (bank statement reveals, notification stacks) but haven't found the format that makes the cost concrete without feeling like a scare-tactic ad.
For Reddit itself: is a message this transactional ("this saves you money") even a good fit here, or does it read as too sales-y no matter how it's framed? Curious if anyone's had luck with a "here's a dumb mistake I almost made" angle instead of leading with the product.
Not looking for someone to build the campaign for me — just want a gut check from people who think about this stuff daily: is the hook actually good, and what's the smartest format to put it in?