# AI Email Writer vs PrepDoc

The clearest difference is price: AI Email Writer at Free against PrepDoc's $2.99. AI Email Writer also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.6). PrepDoc's advantage is in-app purchases (none vs 6) and ads (none vs shown). On update cadence there is nothing between them.

AI Email Writer is free to download; PrepDoc costs $2.99 up front. AI Email Writer sells 6 in-app purchases, starting at $6.99 per 7 days. PrepDoc asks for nothing beyond the download.

AI Email Writer ships an update every 4 days, PrepDoc every 5 days. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | AI Email Writer | PrepDoc |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.8 (909 ratings)](https://appshunter.io/ios/app/ai-email-writer-boss/id6504049931/reviews)** | — |
| Number of ratings | **909** | — |
| Positive reviews | 86.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 5 days |
| Monetization | Free with in-app purchases | — |
| Size | 64 MB | 3 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Curious Creators Co.](https://appshunter.io/developer/632150786) | [Ferkan Sari](https://appshunter.io/developer/1547086877) |

## What reviewers say

### AI Email Writer

[App page](https://appshunter.io/ios/app/ai-email-writer-boss/id6504049931)

Effortlessly compose professional and personalized emails in seconds with an AI-powered assistant. This tool offers advanced AI writing, customization to match your voice, and helpful templates. It ensures error-free communication and integrates seamlessly with major email providers, saving you time and boosting your confidence.

**Highlights:** AI-powered email drafting, Customizable writing style, Professionally crafted templates, Grammar and spell checking, Seamless email provider integration, Time-saving efficiency

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Boss AI Email Writer Pro | $6.99 | per 7 days |
| Boss AI Email Writer Pro | $6.99 | per 7 days |
| Boss AI Email Writer Pro | $24.99 | per year |
| Boss AI Email Writer Pro | $49.99 | per year |
| Boss AI Email Writer Pro | $49.99 | per year |
| Boss AI Email Writer Pro | $69.99 | one-time |

**What reviewers like**

- 👍 Efficient and user-friendly
- 🚀 Simplifies writing process
- 💡 Enhances writing skills
- 🔥 Impressive and surprising results

**What reviewers complain about**

- 🐛 Subscription issues
- 🤔 Unclear how to use app

**Reported bugs**

- Subscription not found after free trial
- Inability to generate content

**Requested features**

- Demo video for better guidance
- Easier access to free lifetime subscription


### PrepDoc

[App page](https://appshunter.io/ios/app/prepdoc-document-scanner/id6760216278)

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

**In-app purchases:** none


## Frequently asked questions

### Is AI Email Writer free?

AI Email Writer is free to download, with in-app purchases available.

### Is PrepDoc free?

PrepDoc costs $2.99, with no in-app purchases.

### Do AI Email Writer or PrepDoc have ads?

AI Email Writer shows ads; PrepDoc does not.

### Which is updated more often, AI Email Writer or PrepDoc?

AI Email Writer ships an update every 4 days, and PrepDoc every 5 days. Most recently, AI Email Writer was updated on October 19, 2026 and PrepDoc on October 7, 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.*