# MailBuzzr for Outlook vs Instant Testing

The clearest difference is in-app purchases: Instant Testing at none against MailBuzzr for Outlook's 7. Instant Testing also leads on ads (none vs shown). MailBuzzr for Outlook's advantage is update cadence (fortnightly vs every 2 months) and iOS requirement (9.0 vs 14.0). On price and device support there is nothing between them.

Both are free to download. MailBuzzr for Outlook sells 7 one-off in-app purchases. Instant Testing asks for nothing beyond the download.

MailBuzzr for Outlook ships an update fortnightly, Instant Testing every 2 months. The most recent releases landed on August 30, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | MailBuzzr for Outlook | Instant Testing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (520 ratings)](https://appshunter.io/ios/app/mailbuzzr-for-outlook/id476346562/reviews)** | — |
| Number of ratings | **520** | — |
| Positive reviews | 65.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 43 MB | 79 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aversys Mobile](https://appshunter.io/developer/476346565) | [Clapptron Technologies Private Limited](https://appshunter.io/developer/1446260957) |

## What reviewers say

### MailBuzzr for Outlook

[App page](https://appshunter.io/ios/app/mailbuzzr-for-outlook/id476346562)

Manage all your Hotmail and Outlook accounts in one fast, beautifully designed app. Get smart notifications, organize emails with tags and filters, and undo actions easily. Enjoy a frustration-free email experience with an elegant interface and custom themes.

**Highlights:** Unified inbox for multiple accounts, Smart notifications with customizable alerts, Quick email preview and undo actions, Automatic email organization with tags and filters, Built-in file viewer for attachments, Customizable themes and signatures

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $1.99 | one-time |
| Remove ads | $2.99 | one-time |
| Upgrade to Lite | $2.99 | one-time |
| Upgrade to Pro | $2.99 | one-time |
| Lite | $3.99 | one-time |
| Upgrade to Pro | $3.99 | one-time |
| Pro | $4.99 | one-time |

**What reviewers like**

- 🚀 Fast and reliable
- 👍 Easy to use
- 🔒 Secure email access
- 💡 Convenient email management
- 👍 Great app design and interface

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🐛 Sync and connectivity issues
- 🐛 Deleted emails reappearing
- 🐛 Attachment and draft handling problems
- 🔋 High battery consumption

**Reported bugs**

- Login issues and password problems
- Notifications not working properly
- Compatibility problems with newer iOS versions
- Slow email loading and refreshing

**Requested features**

- Add more email account support
- Improve email organization and search
- Implement a junk mail folder
- Allow bulk email deletion
- Add customization options


### Instant Testing

[App page](https://appshunter.io/ios/app/instant-testing/id6587570917)

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

**In-app purchases:** none


## Frequently asked questions

### Is MailBuzzr for Outlook free?

MailBuzzr for Outlook is free to download, with in-app purchases available.

### Is Instant Testing free?

Instant Testing is free to download, with no in-app purchases.

### Do MailBuzzr for Outlook or Instant Testing have ads?

MailBuzzr for Outlook shows ads; Instant Testing does not.

### Which is updated more often, MailBuzzr for Outlook or Instant Testing?

MailBuzzr for Outlook ships an update fortnightly, and Instant Testing every 2 months. Most recently, MailBuzzr for Outlook was updated on August 30, 2026 and Instant Testing on September 28, 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.*