IOU - Promise & Favor Tracker
SONNY CASTRO Social Networking iPhoneiPadiPod touch
IOU - Promise & Favor Tracker is a free Social Networking app for iPhone and iPad by SONNY CASTRO. Requires iOS 17.0. Updated May 29, 2026.
- Price
- Free
- on the App Store
- Size
- 54 MB
- Age 4+
- Updated
- May 29
- 2026 · v1.0.1
Screenshots
About IOU - Promise & Favor Tracker
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.
What’s new
Version 1.0.1 · Updated May 29, 2026
Bug fixes and stability improvements.
App privacy
The developer, SONNY CASTRO, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Purchases: Purchase History
- Contact Info: Email Address, Name
- Contacts: Contacts
- Identifiers: User ID
Used for: App Functionality
Alternatives to IOU - Promise & Favor Tracker
Looking for apps like IOU - Promise & Favor Tracker? Here are 6 similar apps on the App Store. The highest rated is sharespot: social journal (4.8/5), and all 6 are free to download.
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IOU Jar: Shared Favor Tracker
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Soei: Social & Personal AI
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sharespot: social journal
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Butterflies - Talk to Real AIs
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Finsta: Chats with value
4.8
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Second Texting Number
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| IOU - Promise & Favor Tracker | – | Free | May 29, 2026 | |
| IOU Jar: Shared Favor Tracker | – | Free | Sep 28, 2026 | Compare |
| Soei: Social & Personal AI | 4.7 / 5 (206) | Free | Oct 22, 2026 | Compare |
| sharespot: social journal | 4.8 / 5 (728) | Free | Nov 2, 2026 | Compare |
| Butterflies - Talk to Real AIs | 4.3 / 5 (406) | Free | Feb 26, 2025 | Compare |
| Finsta: Chats with value | 4.8 / 5 (335) | Free | Oct 11, 2026 | Compare |
| Second Texting Number | 4.6 / 5 (65,941) | Free | Oct 30, 2026 | Compare |