# IOU - Promise & Favor Tracker — Little promises for friends

> Little promises for friends (iPhone/iPad app by SONNY CASTRO.)

- Source: https://appshunter.io/ios/app/iou-promise-and-favor-tracker/id6767769831 (this page in markdown: same URL + `.md`)
- Developer: [SONNY CASTRO](https://appshunter.io/developer/1896507245)
- Category: Social Networking, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 54 MB
- Languages: American English
- Released: 2026-05-26
- Data updated: 2026-06-12
- User reviews in markdown: https://appshunter.io/ios/app/iou-promise-and-favor-tracker/id6767769831/reviews.md

## What is IOU?

IOU is the app for the little promises you actually want to keep — a coffee, a phone call, a favor you've been meaning to ask. Send a personalized IOU to a friend, they redeem it when they're ready, and you both get the moment instead of forgetting.

WHAT'S AN IOU?
A tiny thoughtful coupon. Pick a vibe (coffee, hug, movie night, anything), write a note, optionally add a photo, doodle, or voice memo. Send. Your friend gets it, redeems it when the moment is right.

WHY YOU'LL LOVE IT
• Two-tap sending — no friction, no overthinking
• Beautiful vibe templates so each IOU feels personal
• Send by phone, contacts, or shareable link
• Notifications when your IOUs are received and redeemed
• Multi-use IOUs for promises you'd give more than once
• Expiration dates so promises don't drift forever
• Voice messages, photos, doodles, stickers
• Thank-yous when friends redeem

IOU PRO — UNLOCK MORE
• Unlimited IOUs (free tier: 3 to start)
• Custom expiry windows
• Multi-use promises
• Priority support

Subscriptions:
• IOU Pro Monthly — $4.99/month, auto-renewing
• IOU Pro Yearly — $29.99/year, auto-renewing (save 50%)

Payment is charged to your Apple ID account at purchase confirmation. Subscription auto-renews unless turned off at least 24 hours before the end of the current period. Account is charged for renewal within 24 hours prior to the end of the current period at the cost of the chosen package. You can manage and cancel subscriptions in your App Store account settings after purchase.

Terms of Use: https://iou-landing.vercel.app/terms
Privacy Policy: https://iou-landing.vercel.app/privacy

PRIVACY
We collect only what's needed to deliver your IOUs: name, email, phone (verified by SMS), and the people you send to. Promises are visible only to sender and recipient. Delete your account anytime in Settings — your data goes with it.

Made by Sonny Castro. Send the moment. Promise kept.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| IOU Pro Monthly | $4.99 | per month |
| IOU Pro Yearly | $29.99 | per year |



## Version history (last 2 releases)

### 1.0.1 — 2026-05-29

Bug fixes and stability improvements.

### 1.0 — 2026-05-26

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-12.*