# Auth Sync vs Power Estimator

The clearest difference is iOS requirement: Auth Sync at 15.1 against Power Estimator's 26.0. 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.

## The numbers

| Metric | Auth Sync | Power Estimator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 59 MB | 2 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [DREAMER NETWORK CO., LTD](https://appshunter.io/developer/1613694335) | [Arutunian LLC](https://appshunter.io/developer/1036342699) |

## What reviewers say

### Auth Sync

[App page](https://appshunter.io/ios/app/auth-sync-safe-and-secure-2fa/id6751329938)

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

**In-app purchases:** none


### Power Estimator

[App page](https://appshunter.io/ios/app/power-estimator/id6759549885)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Auth Sync free?

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

### Is Power Estimator free?

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

### Do Auth Sync or Power Estimator have ads?

Neither Auth Sync nor Power Estimator shows ads.

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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.*