# MyPublicInbox vs DevStampBook

The clearest difference is update cadence: DevStampBook at every 9 days against MyPublicInbox's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

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

MyPublicInbox ships an update every 3 months, DevStampBook every 9 days. The most recent releases landed on October 9, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | MyPublicInbox | DevStampBook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Size | 48 MB | 33 MB |
| Requires iOS | **14.2** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [My Public Inbox](https://appshunter.io/developer/1679538420) | [Hector Veitia Vila](https://appshunter.io/developer/1502665960) |

## What reviewers say

### MyPublicInbox

[App page](https://appshunter.io/ios/app/mypublicinbox/id6446890697)

**Features:** macOS Compatibility

**In-app purchases:** none


### DevStampBook

[App page](https://appshunter.io/ios/app/devstampbook/id6780562748)

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

**In-app purchases:** none


## Frequently asked questions

### Is MyPublicInbox free?

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

### Is DevStampBook free?

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

### Do MyPublicInbox or DevStampBook have ads?

Neither MyPublicInbox nor DevStampBook shows ads.

### Which is updated more often, MyPublicInbox or DevStampBook?

MyPublicInbox ships an update every 3 months, and DevStampBook every 9 days. Most recently, MyPublicInbox was updated on October 9, 2026 and DevStampBook on October 2, 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.*