# US Sailing Bookstore vs ChatHistory

The clearest difference is update cadence: ChatHistory at every 5 days against US Sailing Bookstore's every 6 weeks. ChatHistory also leads on iOS requirement (12.1 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. US Sailing Bookstore sells 10 one-off in-app purchases and ChatHistory sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

US Sailing Bookstore ships an update every 6 weeks, ChatHistory every 5 days. The most recent releases landed on November 5, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | US Sailing Bookstore | ChatHistory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (14 ratings)](https://appshunter.io/ios/app/us-sailing-bookstore/id1176980130/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 70 MB | 45 MB |
| Requires iOS | 16.0 | **12.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [US SAILING](https://appshunter.io/developer/358318666) | [techprimate GmbH](https://appshunter.io/developer/1647735142) |

## What reviewers say

### US Sailing Bookstore

[App page](https://appshunter.io/ios/app/us-sailing-bookstore/id1176980130)

Access digital sailing publications, including racing rules and training materials. Read offline, highlight text, and bookmark pages. Some content is free for members, while other publications are available for purchase.

**Highlights:** Digital sailing publications, Offline reading capability, Highlighting and bookmarking, Text search functionality, Free member benefits, In-app purchases

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DAVE PERRY’S 100 Rules Quizzes | $14.99 | one-time |
| The Racing Rules of Sailing For 2017-2020 | $15.99 | one-time |
| Basic Cruising | $17.99 | one-time |
| Learn Sailing Right Beginning | $17.99 | one-time |
| Basic Keelboat | $19.99 | one-time |
| Bareboat Cruising | $24.99 | one-time |
| Safety at Sea Guide | $25.99 | one-time |
| Passage Making | $32.99 | one-time |
| Understanding the Racing Rules | $34.99 | one-time |
| Basic Keelboat 5th Edition | $34.99 | one-time |


### ChatHistory

[App page](https://appshunter.io/ios/app/chathistory/id1464880768)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $1.99 | one-time |
| Remove Watermark | $1.99 | one-time |
| Premium | $2.99 | one-time |


## Frequently asked questions

### Is US Sailing Bookstore free?

US Sailing Bookstore is free to download, with in-app purchases available.

### Is ChatHistory free?

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

### Do US Sailing Bookstore or ChatHistory have ads?

Neither US Sailing Bookstore nor ChatHistory shows ads.

### Which is updated more often, US Sailing Bookstore or ChatHistory?

US Sailing Bookstore ships an update every 6 weeks, and ChatHistory every 5 days. Most recently, US Sailing Bookstore was updated on November 5, 2026 and ChatHistory on November 3, 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.*