# Mach Write vs IsatHub Voice

The clearest difference is in-app purchases: IsatHub Voice at none against Mach Write's 1. IsatHub Voice also leads on ads (none vs shown) and update cadence (every 4 months vs every 10 months). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Mach Write sells 1 one-off in-app purchase. IsatHub Voice asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 1.0 for Mach Write against 1.0 for IsatHub Voice. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Mach Write ships an update every 10 months, IsatHub Voice every 4 months. The most recent releases landed on September 30, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Mach Write | IsatHub Voice |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/mach-write/id787242110/reviews) | [1.0 (1 ratings)](https://appshunter.io/ios/app/isathub-voice/id895474692/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 45.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Every 4 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 19 MB | 136 MB |
| Requires iOS | 15.6 | **8.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mach Software Design](https://appshunter.io/developer/327826899) | [Inmarsat Global Limited](https://appshunter.io/developer/883350935) |

## What reviewers say

### Mach Write

[App page](https://appshunter.io/ios/app/mach-write/id787242110)

This app offers robust editing and viewing capabilities for RTF, TXT, and PDF files across iOS and macOS. It features iCloud synchronization, syntax highlighting for code formats, and PDF annotation tools.

**Highlights:** iCloud document synchronization, RTF Read/Write support, TXT and code format Read/Write with syntax highlighting, PDF Creation, Viewing, and Editing, Freehand PDF writing on iOS, DOC and DOCX viewing on iOS

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### IsatHub Voice

[App page](https://appshunter.io/ios/app/isathub-voice/id895474692)

This application allows your smart device to make calls and send/receive SMS messages using a satellite network, providing connectivity outside of traditional cellular coverage. It integrates with your device's native contact list and offers call recording and history features.

**Highlights:** Make calls and send SMS over satellite, Works with IsatHub terminal, Uses device's native contact list, Call recording, Call history, SMS support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mach Write free?

Mach Write is free to download, with in-app purchases available.

### Is IsatHub Voice free?

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

### Which has better reviews, Mach Write or IsatHub Voice?

Mach Write and IsatHub Voice are both rated 1.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Mach Write or IsatHub Voice have ads?

Mach Write shows ads; IsatHub Voice does not.

### Which is updated more often, Mach Write or IsatHub Voice?

Mach Write ships an update every 10 months, and IsatHub Voice every 4 months. Most recently, Mach Write was updated on September 30, 2026 and IsatHub Voice on October 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*