Tello Messenger vs Zerogram
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
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.
- Screen reader compatibility
- Secure login
- Full chat functionality
- Voice message recording
- Media and document sharing
- Message management
- Customizable appearance
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Zerogram — Accessible Telegram Client Zerogram is a completely free, independent Telegram client designed from the ground up for blind and low-vision users. It is built on Telegram's official open-source library (TDLib), so it works with your real Telegram account and your real chats. Why Zerogram? Full compatibility with the VoiceOver screen reader is the app's core design goal. Every button, every message, every screen is crafted with clear labels, hints, and rotor actions. Messages are read as "who, when, what" with a single tap; voice messages are announced with their duration, and play, pause, and seek are offered as rotor actions. Key features: - Secure login with phone number and two-step verification - Full communication with chats, groups, channels, and bots - Record and send voice messages (tap or press-and-hold) - Send photos, videos, and documents; open documents inside the app - React to, reply to, edit, and forward messages - Search people across your chats and Telegram's public directory - Notifications, mute, archive, pin - Dark theme, adjustable text size, chat wallpapers - 7 languages: Turkish, English, German, Spanish, Italian, Arabic, French Your privacy comes first. Zerogram collects no data from you; all your communication happens directly with Telegram's servers over the same infrastructure. No ads, no tracking, no middleman. Zerogram is developed by Meriç Karaca, in the belief that everyone deserves to communicate equally.
Screenshots
Verdict
The clearest difference is rating: Tello Messenger at 5.0 against Zerogram's 4.0. Zerogram's advantage is update cadence (every 2 days vs every 3 weeks) and ratings volume (7 vs 2). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Tello Messenger holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 7 respectively.
Tello Messenger ships an update every 3 weeks, Zerogram every 2 days. The most recent releases landed on October 3, 2026 and September 24, 2026 respectively.
| Parameter | Tello Messenger | Zerogram |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.0 (7 ratings) |
| Positive reviews | — | 33.3% of reviews |
| Number of ratings | 2 | 7 — better |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 16 | 16.0 |
| Further details — not scored | ||
| Size | 43 MB | 189 MB |
| Age rating | 17+ | 17+ |
| Developer | EVER SUCCEEDED GLOBAL TLD, INC. | MERIC KARACA |
Customer experience
Tello Messenger
Zerogram
In-app purchases
Tello Messenger
No in-app purchases
Zerogram
No in-app purchases









