# Circle.ooo vs zonecheck

The clearest difference is device support: Circle.ooo at 3 against zonecheck's 1. Circle.ooo also leads on iOS requirement (14.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Circle.ooo ships an update weekly, zonecheck every 5 days. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Circle.ooo | zonecheck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Size | 132 MB | 50 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Noww, Inc.](https://appshunter.io/developer/1275092398) | [ZONECHECK ECOSYSTEM (OPC) PRIVATE LIMITED](https://appshunter.io/developer/1796893525) |

## What reviewers say

### Circle.ooo

[App page](https://appshunter.io/ios/app/circleooo/id1611956542)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### zonecheck

[App page](https://appshunter.io/ios/app/zonecheck/id6742318828)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Circle.ooo free?

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

### Is zonecheck free?

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

### Do Circle.ooo or zonecheck have ads?

Neither Circle.ooo nor zonecheck shows ads.

### Which is updated more often, Circle.ooo or zonecheck?

Circle.ooo ships an update weekly, and zonecheck every 5 days. Most recently, Circle.ooo was updated on October 7, 2026 and zonecheck on October 8, 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.*