# WattDesk vs TBB Service

The clearest difference is update cadence: WattDesk at every 2 weeks against TBB Service's every 5 weeks. TBB Service's advantage is iOS requirement (13.0 vs 15.6). 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.

WattDesk ships an update every 2 weeks, TBB Service every 5 weeks. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | WattDesk | TBB Service |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Size | 121 MB | 30 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [旭浦能源](https://appshunter.io/developer/1475609563) | [TBB Power Co., Ltd](https://appshunter.io/developer/1089239531) |

## What reviewers say

### WattDesk

[App page](https://appshunter.io/ios/app/wattdesk/id6471562319)

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

**In-app purchases:** none


### TBB Service

[App page](https://appshunter.io/ios/app/tbb-service/id6772071723)

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

**In-app purchases:** none


## Frequently asked questions

### Is WattDesk free?

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

### Is TBB Service free?

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

### Do WattDesk or TBB Service have ads?

Neither WattDesk nor TBB Service shows ads.

### Which is updated more often, WattDesk or TBB Service?

WattDesk ships an update every 2 weeks, and TBB Service every 5 weeks. Most recently, WattDesk was updated on October 22, 2026 and TBB Service on October 25, 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.*