# JG Underfloor vs Automwrite

The clearest difference is update cadence: Automwrite at every 5 weeks against JG Underfloor's every 14 months. JG Underfloor's advantage is iOS requirement (12.0 vs 15.1). 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.

JG Underfloor ships an update every 14 months, Automwrite every 5 weeks. The most recent releases landed on September 24, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | JG Underfloor | Automwrite |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 177 MB | 62 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Reliance Worldwide Corporation aust. Pty. Ltd.](https://appshunter.io/developer/1638011999) | [Automwrite Ltd](https://appshunter.io/developer/1811070379) |

## What reviewers say

### JG Underfloor

[App page](https://appshunter.io/ios/app/jg-underfloor/id1638011997)

Control your home's underfloor heating system with this intuitive app. Manage thermostats and timers for ultimate zone control and easy configuration of both RF and hard-wired systems.

**Highlights:** Connect to John Guest thermostats, Manage timers, Zone control, Configure RF systems, Configure hard-wired systems, Intuitive user interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Automwrite

[App page](https://appshunter.io/ios/app/automwrite/id6745162570)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is JG Underfloor free?

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

### Is Automwrite free?

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

### Do JG Underfloor or Automwrite have ads?

Neither JG Underfloor nor Automwrite shows ads.

### Which is updated more often, JG Underfloor or Automwrite?

JG Underfloor ships an update every 14 months, and Automwrite every 5 weeks. Most recently, JG Underfloor was updated on September 24, 2026 and Automwrite on September 29, 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.*