# Fmtspace vs WattShift

The clearest difference is update cadence: Fmtspace at every 9 days against WattShift's every 3 weeks. 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.

Fmtspace ships an update every 9 days, WattShift every 3 weeks. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Fmtspace | WattShift |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wattshift/id6446374436/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | — | Free |
| Size | 73 MB | 6 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [First Marina Trust Ltd](https://appshunter.io/developer/1565388141) | [WattShift, Inc.](https://appshunter.io/developer/1578777527) |

## What reviewers say

### Fmtspace

[App page](https://appshunter.io/ios/app/fmtspace/id1565388139)

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

**In-app purchases:** none


### WattShift

[App page](https://appshunter.io/ios/app/wattshift/id6446374436)

This app intelligently manages your home thermostat to prioritize the use of renewable energy sources like solar and wind. It automatically shifts cooling and heating schedules to times when energy is cleaner and cheaper, potentially reducing your electricity bill by up to 30% without compromising comfort.

**Highlights:** Maximizes solar and wind energy use, Reduces electricity bills up to 30%, Maintains full comfort and temperature control, Syncs with smart home devices, Automatically shifts thermostat usage, Prioritizes cleaner energy sources

**In-app purchases:** none


## Frequently asked questions

### Is Fmtspace free?

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

### Is WattShift free?

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

### Do Fmtspace or WattShift have ads?

Neither Fmtspace nor WattShift shows ads.

### Which is updated more often, Fmtspace or WattShift?

Fmtspace ships an update every 9 days, and WattShift every 3 weeks. Most recently, Fmtspace was updated on October 10, 2026 and WattShift on October 1, 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.*