# OIO vs Gapzilla

The clearest difference is in-app purchases: Gapzilla at none against OIO's 4. Gapzilla also leads on update cadence (daily vs every 4 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OIO sells 4 in-app purchases, starting at $5.99 per month. Gapzilla asks for nothing beyond the download.

OIO ships an update every 4 days, Gapzilla daily. Both last shipped on October 31, 2026.

## The numbers

| Metric | OIO | Gapzilla |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | **Daily** |
| Size | 41 MB | 4 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yongjia Yueyan Technology Co., Ltd](https://appshunter.io/developer/6776898162) | [深 蒋](https://appshunter.io/developer/1876920657) |

## What reviewers say

### OIO

[App page](https://appshunter.io/ios/app/oio/id6776898160)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OIO PLUS订阅会员 | $5.99 | per month |
| OIO 订阅会员 | $9.99 | per month |
| OIO PLUS 年费会员 | $49.99 | per year |
| OIO PRO 年费会员 | $69.99 | per year |


### Gapzilla

[App page](https://appshunter.io/ios/app/gapzilla-grow-the-gaps/id6792725506)

**In-app purchases:** none


## Frequently asked questions

### Is OIO free?

OIO is free to download, with in-app purchases available.

### Is Gapzilla free?

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

### Do OIO or Gapzilla have ads?

Neither OIO nor Gapzilla shows ads.

### Which is updated more often, OIO or Gapzilla?

OIO ships an update every 4 days, and Gapzilla daily. Most recently, OIO was updated on October 31, 2026 and Gapzilla on October 31, 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.*