# TOPFLY vs O2

The clearest difference is iOS requirement: TOPFLY at 12.0 against O2's 14.0. 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.

TOPFLY ships an update every 3 weeks, O2 every 6 weeks. The most recent releases landed on September 26, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | TOPFLY | O2 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 32 MB | 10 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [i-Connecty srl](https://appshunter.io/developer/1250451465) | [EP spa](https://appshunter.io/developer/1688557966) |

## What reviewers say

### TOPFLY

[App page](https://appshunter.io/ios/app/topfly/id1499455708)

**Features:** macOS Compatibility

**In-app purchases:** none


### O2

[App page](https://appshunter.io/ios/app/o2/id6744065012)

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

**In-app purchases:** none


## Frequently asked questions

### Is TOPFLY free?

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

### Is O2 free?

O2 is free to download, with no in-app purchases.

### Do TOPFLY or O2 have ads?

Neither TOPFLY nor O2 shows ads.

### Which is updated more often, TOPFLY or O2?

TOPFLY ships an update every 3 weeks, and O2 every 6 weeks. Most recently, TOPFLY was updated on September 26, 2026 and O2 on October 6, 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.*