# OneStamp vs Foundit

The clearest difference is ads: OneStamp at none against Foundit's shown. Foundit's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OneStamp ships an update every 6 weeks, Foundit every 3 weeks. The most recent releases landed on November 11, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | OneStamp | Foundit |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 9 MB | 88 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Moocom Corp.](https://appshunter.io/developer/1125791678) | [hyunseung yun](https://appshunter.io/developer/1818531937) |

## What reviewers say

### OneStamp

[App page](https://appshunter.io/ios/app/onestamp/id1125791679)

Participate in multiple stamp rallies with a single app, eliminating the need for paper or individual apps. Check in at stamp points, link photos to create a personal photo album, and discover new rallies. Notifications alert you when stamp points are nearby.

**Highlights:** Manage multiple stamp rallies in one app, Search for nearby rallies and stamp points, Receive notifications for nearby stamp points, Link photos and notes to check-ins, Discover various themed stamp rallies

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Foundit

[App page](https://appshunter.io/ios/app/foundit-home-inventory/id6757179682)

**In-app purchases:** none


## Frequently asked questions

### Is OneStamp free?

OneStamp is free to download, with no in-app purchases.

### Is Foundit free?

Foundit is free to download, with no in-app purchases.

### Do OneStamp or Foundit have ads?

Foundit shows ads; OneStamp does not.

### Which is updated more often, OneStamp or Foundit?

OneStamp ships an update every 6 weeks, and Foundit every 3 weeks. Most recently, OneStamp was updated on November 11, 2026 and Foundit on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*