Ad Matai ("Until When") is an Israeli warranty and subscription manager. You photograph a receipt or warranty certificate, the app extracts the product, store, price, and purchase date automatically, and then calculates the real warranty end date according to Israeli consumer-protection law, even when the store never stated one.
Who it is for
Every Israeli household: anyone who discovered their fridge warranty expired a month before it broke, or keeps paying for a streaming or gym subscription they forgot to cancel.
How it works
- Snap a receipt: an LLM extracts the details, tuned for Hebrew receipts and Israeli store formats.
- Law-aware calculation: a dedicated knowledge module encodes the Israeli Consumer Protection Regulations (Warranty and After-Sale Service, 2006): a mandatory 1-year warranty on electrical products over 150 ILS, 4 years for electric and solar water heaters, spare-parts obligations, replacement or refund rights, and even 300 or 600 ILS compensation for a late technician.
- Timely reminders: a month and a week before a warranty expires, and a few days before each subscription renews.
- Annual spend view: all subscriptions in one place with the total yearly cost, which is usually the surprising number.
What you get
The app is completely free with gentle, clearly labeled ads that never interrupt core flows. Premium removes ads entirely and unlocks savings tools: a personal negotiation script for retention calls, auto-drafted formal complaint letters citing the relevant law, and cancellation help per provider. A referral program grants both sides a free premium month, unlimited. The entire UI is Hebrew, RTL, and gender-neutral.
Behind the scenes
Built with Expo (React Native) and TypeScript on a single cross-platform codebase, Supabase for auth, Postgres, and receipt storage with row-level security, Anthropic's Claude API for receipt extraction, expo-notifications for reminders, and EAS Build for shipping to Google Play.
Links
- Website: howlong.fyi
- Ad Matai on Google Play