# Solar Controller vs VerifyOnce

The clearest difference is update cadence: VerifyOnce at every 3 days against Solar Controller's every 9 months. Solar Controller's advantage is iOS requirement (13.0 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.

Solar Controller ships an update every 9 months, VerifyOnce every 3 days. The most recent releases landed on April 26, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Solar Controller | VerifyOnce |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 days** |
| Size | 23 MB | 65 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TBB Power Co., Ltd](https://appshunter.io/developer/1089239531) | [kenner allen](https://appshunter.io/developer/1874398569) |

## What reviewers say

### Solar Controller

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

**In-app purchases:** none


### VerifyOnce

[App page](https://appshunter.io/ios/app/verifyonce/id6759641242)

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

**In-app purchases:** none


## Frequently asked questions

### Is Solar Controller free?

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

### Is VerifyOnce free?

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

### Do Solar Controller or VerifyOnce have ads?

Neither Solar Controller nor VerifyOnce shows ads.

### Which is updated more often, Solar Controller or VerifyOnce?

Solar Controller ships an update every 9 months, and VerifyOnce every 3 days. Most recently, Solar Controller was updated on April 26, 2026 and VerifyOnce on September 20, 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.*