# Calibration Keeper vs DeviceAdminly

The clearest difference is ads: Calibration Keeper at none against DeviceAdminly's shown. DeviceAdminly's advantage is iOS requirement (12.0 vs 15.1). On price, update cadence, 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.

Calibration Keeper ships an update every 16 months, DeviceAdminly every 23 months. The most recent releases landed on September 16, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Calibration Keeper | DeviceAdminly |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 16 months** | Every 23 months |
| Size | 22 MB | 37 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Trihydro Corporation](https://appshunter.io/developer/920601995) | [Kang-Yen Sung](https://appshunter.io/developer/685816637) |

## What reviewers say

### Calibration Keeper

[App page](https://appshunter.io/ios/app/calibration-keeper/id1465790622)

**Features:** macOS Compatibility

**In-app purchases:** none


### DeviceAdminly

[App page](https://appshunter.io/ios/app/deviceadminly/id6446947566)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calibration Keeper free?

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

### Is DeviceAdminly free?

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

### Do Calibration Keeper or DeviceAdminly have ads?

DeviceAdminly shows ads; Calibration Keeper does not.

### Which is updated more often, Calibration Keeper or DeviceAdminly?

Calibration Keeper ships an update every 16 months, and DeviceAdminly every 23 months. Most recently, Calibration Keeper was updated on September 16, 2026 and DeviceAdminly on September 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.*