# Pinbook vs Sign

The clearest difference is iOS requirement: Sign at 14.0 against Pinbook's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Pinbook sells 1 one-off in-app purchase and Sign sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Pinbook | Sign |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 13 MB | 9 MB |
| Requires iOS | 17.6 | **14.0** |
| Devices | iPhone, Apple Watch, Vision Pro | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Cocoa Productions](https://appshunter.io/developer/891432868) | [Dalian Fuyuan Duoduo Technology Co., Ltd.](https://appshunter.io/developer/1716686665) |

## What reviewers say

### Pinbook

[App page](https://appshunter.io/ios/app/pinbook/id6452802397)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Version | $6.99 | one-time |


### Sign

[App page](https://appshunter.io/ios/app/sign-upload-and-sign-docs/id6475391149)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 week | $3.99 | per 7 days |
| 1 month | $7.99 | per month |
| 1 year | $39.99 | per year |


## Frequently asked questions

### Is Pinbook free?

Pinbook is free to download, with in-app purchases available.

### Is Sign free?

Sign is free to download, with in-app purchases available.

### Do Pinbook or Sign have ads?

Neither Pinbook nor Sign shows ads.

### Which is updated more often, Pinbook or Sign?

Pinbook ships an update every 2 months, and Sign every 2 months. Most recently, Pinbook was updated on October 24, 2026 and Sign on October 25, 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.*