# AI Email Writer vs mBooks.ai

The clearest difference is update cadence: mBooks.ai at every 2 days against AI Email Writer's every 2 months. mBooks.ai also leads on rating (5.0 vs 4.6) and iOS requirement (12.0 vs 15.0). AI Email Writer's advantage is ratings volume (22 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. AI Email Writer sells 4 in-app purchases, starting at $3.99 per 7 days and mBooks.ai sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

mBooks.ai holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: AI Email Writer has 22 ratings behind it against 1, so its average is the more settled of the two.

AI Email Writer ships an update every 2 months, mBooks.ai every 2 days. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | AI Email Writer | mBooks.ai |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (22 ratings)](https://appshunter.io/ios/app/ai-email-writer-write-e-mail/id6449893552/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mbooksai-ai-expense-tracker/id6740852361/reviews)** |
| Number of ratings | **22** | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 81 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Speed Apps Labs LLP](https://appshunter.io/developer/1681161383) | [GoGoSoon](https://appshunter.io/developer/1786854836) |

## What reviewers say

### AI Email Writer

[App page](https://appshunter.io/ios/app/ai-email-writer-write-e-mail/id6449893552)

This AI-powered app assists users in crafting professional and compelling emails quickly. It offers intelligent suggestions for content, tone, and style, integrates with popular email services, and includes grammar and spell check for error-free communication.

**Highlights:** AI email generation, Productivity enhancement, Professional email quality, Personalized assistance, Gmail/Outlook/Hotmail integration, Email templates, Grammar and spell check

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $3.99 | per 7 days |
| Premium Half-Yearly | $14.99 | per 6 months |
| Premium Yearly | $17.99 | per year |
| Premium Lifetime | $39.99 | one-time |


### mBooks.ai

[App page](https://appshunter.io/ios/app/mbooksai-ai-expense-tracker/id6740852361)

Effortlessly manage your finances with AI-powered transaction categorization and automated report generation. Import data via bank statements or screenshots for a seamless overview of your spending.

**Highlights:** AI Auto-categorization, Bank statement import, Screenshot transaction import, Automated report generation, Transaction analysis

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited - Monthly | $9.99 | per month |
| Unlimited - Yearly | $30.00 | per year |


## Frequently asked questions

### Is AI Email Writer free?

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

### Is mBooks.ai free?

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

### Which has better reviews, AI Email Writer or mBooks.ai?

mBooks.ai is rated higher. AI Email Writer averages 4.6 out of 5 from 22 ratings, while mBooks.ai averages 5.0 from 1 ratings.

### Do AI Email Writer or mBooks.ai have ads?

Neither AI Email Writer nor mBooks.ai shows ads.

### Which is updated more often, AI Email Writer or mBooks.ai?

AI Email Writer ships an update every 2 months, and mBooks.ai every 2 days. Most recently, AI Email Writer was updated on October 24, 2026 and mBooks.ai on October 11, 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.*