# ZOLEO vs Iridium Chat

The clearest difference is review sentiment: Iridium Chat at 100% against ZOLEO's 52%. Iridium Chat also leads on rating (5.0 vs 3.7) and monetization model (free vs free with in-app purchases). ZOLEO's advantage is ratings volume (104 vs 1) and update cadence (every 2 months vs every 6 months). On price, ads, in-app purchases and device support there is nothing between them.

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

Iridium Chat holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: ZOLEO has 104 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 52% of ZOLEO's written reviews are positive against 100% of Iridium Chat's.

ZOLEO ships an update every 2 months, Iridium Chat every 6 months. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ZOLEO | Iridium Chat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (104 ratings)](https://appshunter.io/ios/app/zoleo/id1490177472/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iridium-chat/id6476648492/reviews)** |
| Number of ratings | **104** | 1 |
| Positive reviews | 52.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 144 MB | 99 MB |
| Requires iOS | **13** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ZOLEO Inc.](https://appshunter.io/developer/1490177471) | [Iridium](https://appshunter.io/developer/634954979) |

## What reviewers say

### ZOLEO

[App page](https://appshunter.io/ios/app/zoleo/id1490177472)

This app provides seamless global messaging and personal safety features, connecting your smartphone to satellite networks for communication anywhere. It offers SOS alerting, location sharing, and weather forecasts, ensuring you stay connected and safe worldwide.

**Highlights:** Seamless global messaging, SOS alerting with progressive updates, Location sharing, Hyper-local weather forecasts, Dedicated SMS and email number, Two-way messaging over cellular and satellite

**Features:** Vision Pro support

**In-app purchases:** none


### Iridium Chat

[App page](https://appshunter.io/ios/app/iridium-chat/id6476648492)

This app enables real-time, app-to-app instant messaging and image sharing globally via a satellite Wi-Fi device. It offers an always-on messaging experience, group chats, and location sharing.

**Highlights:** Real-time app-to-app messaging, Global satellite network access, Group chats up to 50 people, Image sharing with compression, Location sharing via clickable link, Contact syncing

**In-app purchases:** none


## Frequently asked questions

### Is ZOLEO free?

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

### Is Iridium Chat free?

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

### Which has better reviews, ZOLEO or Iridium Chat?

Iridium Chat is rated higher. ZOLEO averages 3.7 out of 5 from 104 ratings, while Iridium Chat averages 5.0 from 1 ratings.

### Do ZOLEO or Iridium Chat have ads?

Neither ZOLEO nor Iridium Chat shows ads.

### Which is updated more often, ZOLEO or Iridium Chat?

ZOLEO ships an update every 2 months, and Iridium Chat every 6 months. Most recently, ZOLEO was updated on October 17, 2026 and Iridium Chat on October 8, 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.*