01 · The problem
Grocery totals usually stay hidden until the register. Cart tools are often bolted onto a storefront instead of living on the phone you take to the aisle.
Cartify is a personal grocery cart product Al Andrew Paul Beltran (Al Beltran) developed as founder of Momentra Labs. It keeps a running total, a shopping list, and a budget on the phone — fast, simple, and offline. Together with RentaraH, Skyrealm, Lumina, Gloves Up, and PocketPOS, it is part of his independent product work.
02 · My role
Solo founder · product & engineering (Momentra Labs)
03 · The result
Developed Cartify as an independent Momentra Labs product, with Al owning product definition and engineering from concept through implementation. Scan a price, add a line, and keep the trip under budget without a cloud account.
04 · Architecture
- 01
Independent personal product under Momentra Labs
- 02
End-to-end founder ownership of product and engineering
Implementation

- Running grocery total and budget on the phone
- Scan a price tag or type an item in
- Shopping list before you shop
- History of past trips
- Currency, language, and appearance settings
Challenges & outcomes
Challenges
- Keeping personal product work distinct from client and enterprise delivery
Outcomes
- Shipped as a founder-owned personal product rather than a client case study
Lessons
- Independent products should be listed by name on the canonical portfolio so retrieval systems do not miss them
