Comparison

MailBuzzr for Outlook vs Instant Testing

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MailBuzzr for Outlook

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
Read full description

MailBuzzr – Smart, Fast & Beautiful Email for Hotmail and Outlook MailBuzzr is a powerful yet simple email app built for speed, convenience, and clarity. Whether you’re using Hotmail, Outlook, or both, manage all your inboxes in one beautifully designed app — fast and frustration-free. Smart Notifications Know who emailed you — and what it’s about — just by the notification sound. Customize alerts based on sender, priority, or message content. Why You’ll Love MailBuzzr • Multiple Accounts – Add all your Hotmail and Outlook accounts. Switch between them with one tap. • Unified Inbox – See all your emails in one place, or view them by account. • Quick Peek – Long-press a message to preview without opening. Speed through your inbox effortlessly. • Smart Tags & Filters – Automatically organize emails by sender, subject, or keywords. • Undo Actions – Accidentally deleted or sent something? Quickly undo it with a tap. • Professional Signatures – Choose a clean and polished email signature that fits your style. • Elegant Interface – Designed for ease of use with smooth performance and intuitive navigation. • Custom Themes – Pick from a variety of color themes to suit your mood or taste. • Built-in File Viewer – View attachments like PDFs, Word, Excel, PowerPoint, and photos — no extra apps needed. More Features You’ll Enjoy • Swipe to delete, archive, reply, and more • Draft minimization for multitasking • Bulk editing and color-coded accounts • Unread/flagged quick filters • Contact import from Outlook and Google • Push notifications with 5 customizable priority levels • Lock the app with passcode or fingerprint • Quiet time mode for peace of mind • Advanced search: by keyword, sender, subject, or content • Attach files from Google Drive, Dropbox, OneDrive, and more • 30+ custom ringtones for notifications Need help or have feedback? Contact us at support@aversys.com

About

Instant Testing

Features
Read full description

Application to collect data, perform audits, and streamline business processes with offline mobile applications and capture real-time location, camera live photos, live video recording, and much more.

Screenshots

MailBuzzr for Outlook4 screens
Instant Testing3 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
MailBuzzr for Outlook versus Instant Testing: the parameters behind the verdict, then further details
ParameterMailBuzzr for OutlookInstant Testing
PriceFreeFree
Rating4.1 (520 ratings) — better—
Positive reviews65.9% of reviews—
Number of ratings520 — better—
Update frequencyFortnightly — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better14.0
Further details — not scored
Size43 MB79 MB
Age rating4+4+
DeveloperAversys MobileClapptron Technologies Private Limited

Bugs and requests

MailBuzzr for Outlook

Reported bugs

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

Requested features

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

Instant Testing

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

MailBuzzr for Outlook

One-time7
  • No Ads$1.99
  • Remove ads$2.99
  • Upgrade to Lite$2.99
Show 4 more
  • Upgrade to Pro$2.99
  • Lite$3.99
  • Upgrade to Pro$3.99
  • Pro$4.99
None

Instant Testing

No in-app purchases

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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