# AO Office Pro vs eM Client

The clearest difference is price: eM Client at Free against AO Office Pro's $19.99. eM Client also leads on update cadence (weekly vs every 6 weeks). AO Office Pro's advantage is rating (4.2 vs 3.7) and ratings volume (164 vs 42). On review sentiment, ads, in-app purchases and device support there is nothing between them.

eM Client is free to download; AO Office Pro costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AO Office Pro holds the better App Store score, 4.2 against 3.7. Both are backed by a comparable volume of ratings — 164 and 42 respectively. Written reviews point the same way: 51% of AO Office Pro's written reviews are positive against 49% of eM Client's.

AO Office Pro ships an update every 6 weeks, eM Client weekly. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | AO Office Pro | eM Client |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[4.2 (164 ratings)](https://appshunter.io/ios/app/ao-office-pro/id1097657424/reviews)** | [3.7 (42 ratings)](https://appshunter.io/ios/app/em-client/id1561166404/reviews) |
| Number of ratings | **164** | 42 |
| Positive reviews | **51.1% of reviews** | 48.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Paid | **Free** |
| Size | 245 MB | 124 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Akikazu Yoshikawa](https://appshunter.io/developer/1097657423) | [eM Client](https://appshunter.io/developer/1561166526) |

## What reviewers say

### AO Office Pro

[App page](https://appshunter.io/ios/app/ao-office-pro/id1097657424)

This app provides a comprehensive office suite for mobile devices, enabling users to view, edit, import, and export a wide range of document types. It includes tools for word processing, spreadsheets, presentations, drawing, and mathematical equations, mirroring the functionality of desktop office software.

**Highlights:** View, edit, import, and export documents, Full OpenOffice/LibreOffice functionality, Writer, Calc, Impress, Draw, and Math components, PDF export and import, Cloud storage integration (Dropbox, Google Drive, etc.), Support for numerous file formats

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

**In-app purchases:** none


### eM Client

[App page](https://appshunter.io/ios/app/em-client/id1561166404)

This app unifies email, calendar, tasks, contacts, and notes into a single, AI-enhanced platform. It offers advanced features typically found on desktop, including instant message translation and robust encryption, for seamless management of multiple accounts on your iPhone and iPad.

**Highlights:** AI-enhanced email drafting and replies, Unified inbox for email, calendar, tasks, contacts, and notes, Instant message translation, PGP and S/MIME encryption, Quick import from desktop app, Mail-tracking pixel detection, Snooze and Undo Send features

**In-app purchases:** none

**What reviewers like**

- 🚀 Reliable and customizable
- 🔒 Great privacy and security features
- 👍 Clean and intuitive interface
- 🚀 Smooth and fast performance
- 👍 Seamless sync between desktop and mobile

**What reviewers complain about**

- 🐛 Slow email sync and loading issues
- 🐛 Unreliable push notifications and badge counts
- 🐛 Inconsistent behavior compared to other email apps
- 🐛 Bugs and glitches, especially in the initial release
- 🔋 High battery consumption

**Reported bugs**

- Emails not sending immediately
- Drafts not visible or editable
- Inconsistent behavior when switching between folders
- Trouble signing in to multiple Google accounts

**Requested features**

- Calendar integration
- Improved background refresh and sync
- Custom notification sounds
- Ability to sort emails by sender
- More customization options


## Frequently asked questions

### Is AO Office Pro free?

AO Office Pro costs $19.99, with no in-app purchases.

### Is eM Client free?

eM Client is free to download, with no in-app purchases.

### Which has better reviews, AO Office Pro or eM Client?

AO Office Pro is rated higher. AO Office Pro averages 4.2 out of 5 from 164 ratings, while eM Client averages 3.7 from 42 ratings.

### Do AO Office Pro or eM Client have ads?

Neither AO Office Pro nor eM Client shows ads.

### Which is updated more often, AO Office Pro or eM Client?

AO Office Pro ships an update every 6 weeks, and eM Client weekly. Most recently, AO Office Pro was updated on September 23, 2026 and eM Client 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.*