# Tandem by BlindShell vs Zerogram

The clearest difference is review sentiment: Zerogram at 60% against Tandem by BlindShell's 0%. Zerogram also leads on update cadence (every 2 days vs every 2 months). Tandem by BlindShell's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Tandem by BlindShell ships an update every 2 months, Zerogram every 2 days. The most recent releases landed on September 23, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Tandem by BlindShell | Zerogram |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (9 ratings)](https://appshunter.io/ios/app/zerogram/id6792581455/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | 0.0% of reviews | **60.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free | Free |
| Size | 55 MB | 191 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Matapo, a.s.](https://appshunter.io/developer/1776833719) | [MERIC KARACA](https://appshunter.io/developer/1896608961) |

## What reviewers say

### Tandem by BlindShell

[App page](https://appshunter.io/ios/app/tandem-by-blindshell/id6737513534)

Connect with loved ones through text, voice, and video calls. Offers remote control functionality for assistance with a specific phone model, ensuring easy communication and support.

**Highlights:** Text messaging, Voice messages, Free calls, Video calls, Remote phone control

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

**In-app purchases:** none


### Zerogram

[App page](https://appshunter.io/ios/app/zerogram/id6792581455)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Tandem by BlindShell free?

Tandem by BlindShell is free to download, with no in-app purchases.

### Is Zerogram free?

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

### Do Tandem by BlindShell or Zerogram have ads?

Neither Tandem by BlindShell nor Zerogram shows ads.

### Which is updated more often, Tandem by BlindShell or Zerogram?

Tandem by BlindShell ships an update every 2 months, and Zerogram every 2 days. Most recently, Tandem by BlindShell was updated on September 23, 2026 and Zerogram on October 10, 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.*