# rEvoCheck vs O'Dive

The clearest difference is iOS requirement: rEvoCheck at 11.0 against O'Dive's 13.0. 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.

rEvoCheck ships an update every 2 months, O'Dive monthly. The most recent releases landed on September 29, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | rEvoCheck | O'Dive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/odive/id1534593720/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Free |
| Size | 16 MB | 25 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CAP-REL](https://appshunter.io/developer/1405536766) | [AZOTH SYSTEMS](https://appshunter.io/developer/1534593722) |

## What reviewers say

### rEvoCheck

[App page](https://appshunter.io/ios/app/revocheck/id1405536767)

**Features:** macOS Compatibility

**In-app purchases:** none


### O'Dive

[App page](https://appshunter.io/ios/app/odive/id1534593720)

This app uses patented acoustic sensor technology to analyze gas microbubbles detected after a dive. It helps divers assess their decompression procedures and improve their safety and practice based on personalized acoustic measurements.

**Highlights:** Acoustic sensor technology, Gas microbubble detection, Personalized decompression analysis, Diving practice improvement, Diving safety enhancement, Sensor control interface

**In-app purchases:** none


## Frequently asked questions

### Is rEvoCheck free?

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

### Is O'Dive free?

O'Dive is free to download, with no in-app purchases.

### Do rEvoCheck or O'Dive have ads?

Neither rEvoCheck nor O'Dive shows ads.

### Which is updated more often, rEvoCheck or O'Dive?

rEvoCheck ships an update every 2 months, and O'Dive monthly. Most recently, rEvoCheck was updated on September 29, 2026 and O'Dive on September 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*