# Sunways Setup vs Wattstopperi3

The clearest difference is iOS requirement: Wattstopperi3 at 15.6 against Sunways Setup's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Sunways Setup | Wattstopperi3 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 62 MB | 81 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ningbo Sunways Technologies Co.,Ltd.](https://appshunter.io/developer/1471604084) | [THE WATT STOPPER, INC.](https://appshunter.io/developer/1188479609) |

## What reviewers say

### Sunways Setup

[App page](https://appshunter.io/ios/app/sunways-setup/id1604497070)

**Features:** macOS Compatibility

**In-app purchases:** none


### Wattstopperi3

[App page](https://appshunter.io/ios/app/wattstopperi3/id6745227707)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sunways Setup free?

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

### Is Wattstopperi3 free?

Wattstopperi3 is free to download, with no in-app purchases.

### Do Sunways Setup or Wattstopperi3 have ads?

Neither Sunways Setup nor Wattstopperi3 shows ads.

### Which is updated more often, Sunways Setup or Wattstopperi3?

Sunways Setup ships an update monthly, and Wattstopperi3 monthly. Most recently, Sunways Setup was updated on October 14, 2026 and Wattstopperi3 on October 13, 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.*