# ChatFive vs Write A Book

The clearest difference is update cadence: Write A Book at every 5 days against ChatFive's every 2 weeks. ChatFive's advantage is iOS requirement (16.6 vs 26.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ChatFive sells 2 in-app purchases, starting at $6.99 per 7 days and Write A Book sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ChatFive ships an update every 2 weeks, Write A Book every 5 days. The most recent releases landed on October 10, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | ChatFive | Write A Book |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/write-a-book-inkrun/id6753130654/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | — | Freemium |
| Size | 97 MB | 17 MB |
| Requires iOS | **16.6** | 26.1 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [HAPDAY - FZCO](https://appshunter.io/developer/1818617045) | [Otter Ridge Software, LLC](https://appshunter.io/developer/1825462213) |

## What reviewers say

### ChatFive

[App page](https://appshunter.io/ios/app/chatfive-chatbot-assistant/id6751402261)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| chatfive weekly subscription | $6.99 | per 7 days |
| Yearly Subscription | $39.99 | per year |


### Write A Book

[App page](https://appshunter.io/ios/app/write-a-book-inkrun/id6753130654)

This app helps writers track their word count, set goals, and build consistent writing habits. It offers a focus timer and data visualizations to motivate progress, with an optional subscription for advanced features like home screen widgets and unlimited projects.

**Highlights:** Word count tracking, Writing focus timer, Habit tracker, Goal setting, Data visualizations, Unlimited projects (Pro)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Inkrun Pro Monthly | $3.99 | per month |
| Inkrun Pro Annual | $19.99 | per year |
| Inkrun Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is ChatFive free?

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

### Is Write A Book free?

Write A Book is free to download, with in-app purchases available.

### Do ChatFive or Write A Book have ads?

Neither ChatFive nor Write A Book shows ads.

### Which is updated more often, ChatFive or Write A Book?

ChatFive ships an update every 2 weeks, and Write A Book every 5 days. Most recently, ChatFive was updated on October 10, 2026 and Write A Book on September 22, 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.*