# MobileIron Centaur vs MailBuddy

The clearest difference is in-app purchases: MobileIron Centaur at none against MailBuddy's 3. MobileIron Centaur also leads on iOS requirement (9.0 vs 18.0). MailBuddy's advantage is update cadence (weekly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. MailBuddy sells 3 in-app purchases, starting at $49.99 per month. MobileIron Centaur asks for nothing beyond the download.

MobileIron Centaur ships an update every 2 months, MailBuddy weekly. The most recent releases landed on November 11, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | MobileIron Centaur | MailBuddy |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 12 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [MobileIron](https://appshunter.io/developer/320659797) | [zhang xi](https://appshunter.io/developer/408188278) |

## What reviewers say

### MobileIron Centaur

[App page](https://appshunter.io/ios/app/mobileiron-centaur/id1315143363)

**Features:** Vision Pro support

**In-app purchases:** none


### MailBuddy

[App page](https://appshunter.io/ios/app/mailbuddy-draft-with-ai/id6762493968)

This app helps you draft email replies using AI, grounded in your conversation history and custom knowledge bases. Connect Gmail and Outlook accounts to generate and edit suggested responses before saving them as drafts.

**Highlights:** AI-powered reply drafting, Connect Gmail and Outlook, Customizable knowledge bases, Edit and save drafts, Separated knowledge by account, Automatic draft creation option

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Reply Essentials | $49.99 | per month |
| AI Reply Pro | $99.99 | per month |
| AI Reply Max | $149.99 | per month |


## Frequently asked questions

### Is MobileIron Centaur free?

MobileIron Centaur is free to download, with no in-app purchases.

### Is MailBuddy free?

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

### Do MobileIron Centaur or MailBuddy have ads?

Neither MobileIron Centaur nor MailBuddy shows ads.

### Which is updated more often, MobileIron Centaur or MailBuddy?

MobileIron Centaur ships an update every 2 months, and MailBuddy weekly. Most recently, MobileIron Centaur was updated on November 11, 2026 and MailBuddy on October 31, 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.*