Comparison

Tello Messenger vs Zerogram

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

Head to head
About

Tello Messenger

An all-in-one messaging platform offering secure text, image, and voice messaging, alongside HD voice and video calls. It facilitates group chats, team collaboration, and community building with features like AI assistance and self-destructing messages.

Highlights
  • Advanced messaging (text, images, voice notes)
  • HD voice and video calls
  • Group chats and team collaboration
  • End-to-end encryption
  • Customizable interface
  • AI assistant and smart bots
  • Public groups and community features
Features
Read full description

TELLO - Where Conversations Happen Welcome to TELLO, your all-in-one messaging platform for smart, seamless, and secure communication. Key Features: - Advanced Messaging: Send text messages, high-quality images, and voice notes quickly and reliably. - Voice and Video Calls: Enjoy HD call quality with stable and clear connections worldwide. - Group Chats and Team Collaboration: Create group chats for friends, family, or work. Share files and manage tasks easily. - End-to-End Encryption: All chats, calls, and files are protected with strong encryption. - Customizable Interface: Choose themes, backgrounds, and sounds to make TELLO your own. - AI Assistant and Smart Bots: Manage your schedule, get reminders, and more directly within your chats. - Public Groups and Community: Join groups by interest or industry. Share ideas and grow your network. Privacy and Safety: - Self-Destruct Messages: Send confidential information with messages that auto-delete. - Spam Protection and Verified Users: Stay safe with advanced spam filters and user verification. - Parental Controls: Set limits and filters to protect younger users. Download TELLO now and transform the way you connect and collaborate.

About

Zerogram

This is a free, independent Telegram client designed for blind and low-vision users. It offers full compatibility with screen readers, allowing seamless communication through chats, groups, and channels.

Highlights
  • Screen reader compatibility
  • Secure login
  • Full chat functionality
  • Voice message recording
  • Media and document sharing
  • Message management
  • Customizable appearance
Features
Read full description

Zerogram is an independent Telegram client designed for blind and low-vision users. Built with Telegram’s official open-source TDLib library, it works with your Telegram account and conversations. VoiceOver labels, hints and actions help you navigate chats, groups, channels and bots; read, reply to, edit and forward messages; send voice messages, photos, videos and files; and use supported calls and live streams. Explore chat folders, search, translation, notification sounds, storage settings and appearance options. Zerogram supports 15 interface languages. The app is free to download. Adding multiple accounts is available as an optional in-app purchase. Zerogram is an independent app and is not the official Telegram application.

Screenshots

Tello Messenger4 screens
Zerogram3 screens

Verdict

The call

The clearest difference is rating: Tello Messenger at 5.0 against Zerogram's 4.4. Tello Messenger also leads on in-app purchases (none vs 1). Zerogram's advantage is update cadence (daily vs every 3 weeks) and ratings volume (16 vs 2). On price, ads, monetization model 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. Zerogram sells 1 one-off in-app purchase. Tello Messenger asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Tello Messenger holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Zerogram has 16 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Tello Messenger ships an update every 3 weeks, Zerogram daily. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

Scorecard4 real differences · 6 level
Tello Messenger versus Zerogram: the parameters behind the verdict, then further details
ParameterTello MessengerZerogram
PriceFreeFree
Rating5.0 (2 ratings) — better4.4 (16 ratings)
Positive reviews—70.0% of reviews
Number of ratings216 — better
Update frequencyEvery 3 weeksDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS1616.0
Further details — not scored
Size44 MB194 MB
Age rating17+17+
DeveloperEVER SUCCEEDED GLOBAL TLD, INC.MERIC KARACA

Customer experience

Tello Messenger

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Zerogram

All ratings16 ratings
Positive75.0%
Neutral18.8%
Negative6.3%
Written reviews10 reviews
Positive70.0%
Neutral20.0%
Negative10.0%

In-app purchases

None

Tello Messenger

No in-app purchases

1 purchases

Zerogram

One-time1
  • Multiple Accounts$9.99

Questions

Is Tello Messenger free?
Tello Messenger is free to download, with no in-app purchases.
Is Zerogram free?
Zerogram is free to download, with in-app purchases available.
Which has better reviews, Tello Messenger or Zerogram?
Tello Messenger is rated higher. Tello Messenger averages 5.0 out of 5 from 2 ratings, while Zerogram averages 4.4 from 16 ratings.
Do Tello Messenger or Zerogram have ads?
Neither Tello Messenger nor Zerogram shows ads.
Which is updated more often, Tello Messenger or Zerogram?
Tello Messenger ships an update every 3 weeks, and Zerogram daily. Most recently, Tello Messenger was updated on October 28, 2026 and Zerogram on October 29, 2026.

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