# CALLM vs Zeno Turtle

CALLM and Zeno Turtle are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CALLM ships an update every 10 days, Zeno Turtle every 3 weeks. The most recent releases landed on October 17, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | CALLM | Zeno Turtle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/callm/id6752691051/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 301 MB | 148 MB |
| Requires iOS | 17.6 | **16.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 9+ | 17+ |
| Developer | [KYYDSLUCKY CO., LIMITED](https://appshunter.io/developer/1718231254) | [Hangzhou MetaWorld Core Cloud Technology Co., Ltd](https://appshunter.io/developer/1868909590) |

## What reviewers say

### CALLM

[App page](https://appshunter.io/ios/app/callm/id6752691051)

A global instant messaging platform supporting multiple languages, designed as a comprehensive digital ecosystem. It aims to facilitate cross-lingual communication and integrate various digital services.

**Highlights:** Cross-lingual instant messaging, Global communication, Comprehensive digital ecosystem, Multi-language support

**Features:** Vision Pro support

**In-app purchases:** none


### Zeno Turtle

[App page](https://appshunter.io/ios/app/zeno-turtle/id6758871759)

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

**In-app purchases:** none


## Frequently asked questions

### Is CALLM free?

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

### Is Zeno Turtle free?

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

### Do CALLM or Zeno Turtle have ads?

Neither CALLM nor Zeno Turtle shows ads.

### Which is updated more often, CALLM or Zeno Turtle?

CALLM ships an update every 10 days, and Zeno Turtle every 3 weeks. Most recently, CALLM was updated on October 17, 2026 and Zeno Turtle on October 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.*