# Servo For Services vs Solar Controller

The clearest difference is update cadence: Servo For Services at every 2 weeks against Solar Controller's every 9 months. 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.

Servo For Services ships an update every 2 weeks, Solar Controller every 9 months. The most recent releases landed on September 20, 2026 and April 26, 2026 respectively.

## The numbers

| Metric | Servo For Services | Solar Controller |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 9 months |
| Size | 26 MB | 23 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [5ZERO](https://appshunter.io/developer/1629906001) | [TBB Power Co., Ltd](https://appshunter.io/developer/1089239531) |

## What reviewers say

### Servo For Services

[App page](https://appshunter.io/ios/app/servo-for-services/id1629923339)

**Features:** macOS Compatibility

**In-app purchases:** none


### Solar Controller

[App page](https://appshunter.io/ios/app/solar-controller/id1665008052)

**In-app purchases:** none


## Frequently asked questions

### Is Servo For Services free?

Servo For Services is free to download, with no in-app purchases.

### Is Solar Controller free?

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

### Do Servo For Services or Solar Controller have ads?

Neither Servo For Services nor Solar Controller shows ads.

### Which is updated more often, Servo For Services or Solar Controller?

Servo For Services ships an update every 2 weeks, and Solar Controller every 9 months. Most recently, Servo For Services was updated on September 20, 2026 and Solar Controller on April 26, 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.*