# OTAC auth vs iZeroSphere

OTAC auth and iZeroSphere are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | OTAC auth | iZeroSphere |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Size | 10 MB | 16 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [swIDch Limited](https://appshunter.io/developer/1723421198) | [BroTecs Technologies, LLC.](https://appshunter.io/developer/835813072) |

## What reviewers say

### OTAC auth

[App page](https://appshunter.io/ios/app/otac-auth/id6475137518)

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

**In-app purchases:** none


### iZeroSphere

[App page](https://appshunter.io/ios/app/izerosphere/id6739611127)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OTAC auth free?

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

### Is iZeroSphere free?

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

### Do OTAC auth or iZeroSphere have ads?

Neither OTAC auth nor iZeroSphere 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.*