Pricing at a glance
Girl Math
$4.99/mo or $29.99/yr (7-day free trial on annual)
A subscription unlocks everything: unlimited returns, the store directory, receipt photos, reminders and stats.
Shop
Free
Shop is free on the App Store and earns from shopping through Shopify stores.
Shop details are from their App Store listing as of November 11, 2026. Pricing and features change, so confirm the current details on their site before you decide.
Feature by feature
| Feature | Girl Math | Shop |
|---|---|---|
| Core job | Return deadlines and receipts | Shop, check out and track deliveries |
| Order tracking | No | Yes, every order with a live map; can scan your email for orders |
| Return deadlines | Calculates each deadline from built-in return policies for 30+ stores, or any custom window | Not described as a feature in their listing |
| Reminders before a window closes | Reminders 7, 3 and 1 day before every return window closes | Delivery and restock notifications |
| Stores covered | Any store, online or in person | Built around Shopify stores, plus orders it finds in email |
| Receipts | Receipt and product photos attached to each return; share a receipt image or PDF in from other apps | Order details from stores and email |
| Privacy | Stored on your iPhone; no account, no email access, no ads | Account with saved payment details |
Who each one is for
Choose Girl Math if you
- Want a countdown on every return window, not just delivery status
- Buy in store as well as online
- Prefer no account and no email scanning
Choose Shop if you
- Want to see where every package is
- Shop at Shopify stores and want fast checkout and Shop Cash
The bottom line
Keep Shop for checkout and delivery tracking. Add Girl Math for the part Shop does not cover: getting the stuff that did not work back to the store in time.
Shop vs. Girl Math: questions
Is Girl Math a Shop app alternative?
It is a companion more than a replacement. Shop tracks orders on the way to you; Girl Math tracks the return window after they arrive and reminds you 7, 3 and 1 day before it closes.
Does Girl Math track packages?
No. Girl Math does not track shipping. It tracks return deadlines and receipts.
Does Shop remind me before a return window closes?
Its App Store listing describes order tracking, checkout and deals, not return-deadline reminders. That is the gap Girl Math fills.
Is Girl Math free like Shop?
No. Girl Math is a subscription: $4.99/mo or $29.99/yr (7-day free trial on annual).