# PredictChat vs Iridium Chat

The clearest difference is update cadence: PredictChat at every 2 weeks against Iridium Chat's every 7 months. On price, rating, review sentiment and ratings volume there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for PredictChat against 5.0 for Iridium Chat. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

PredictChat ships an update every 2 weeks, Iridium Chat every 7 months. The most recent releases landed on September 17, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | PredictChat | Iridium Chat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/predictchat/id6448483269/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/iridium-chat/id6476648492/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 7 months |
| Monetization | Free | Free |
| Size | 127 MB | 99 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PredictWind Limited](https://appshunter.io/developer/477048590) | [Iridium Satellite LLC](https://appshunter.io/developer/634954979) |

## What reviewers say

### PredictChat

[App page](https://appshunter.io/ios/app/predictchat/id6448483269)

Send and receive WhatsApp and SMS messages while at sea. This companion app connects to the PredictMail service for seamless communication on your voyages.

**Highlights:** WhatsApp messaging at sea, SMS messaging at sea, Companion to PredictMail service, Send and receive messages, Designed for maritime use

**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 PredictChat free?

PredictChat 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, PredictChat or Iridium Chat?

PredictChat and Iridium Chat are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do PredictChat or Iridium Chat have ads?

Neither PredictChat nor Iridium Chat shows ads.

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

PredictChat ships an update every 2 weeks, and Iridium Chat every 7 months. Most recently, PredictChat was updated on September 17, 2026 and Iridium Chat on June 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.*