# CadioWatch vs BarMath

The clearest difference is update cadence: CadioWatch at every 5 days against BarMath's every 3 months. BarMath's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CadioWatch ships an update every 5 days, BarMath every 3 months. The most recent releases landed on September 30, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | CadioWatch | BarMath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/cadiowatch/id1662184405/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 months |
| Monetization | Free | — |
| Size | 8 MB | 1 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [OAXON INC.](https://appshunter.io/developer/1164814009) | [Tanya Landsman](https://appshunter.io/developer/647752035) |

## What reviewers say

### CadioWatch

[App page](https://appshunter.io/ios/app/cadiowatch/id1662184405)

Monitor your heart rate and blood oxygen levels with this companion app for Apple Watch. Easily share your health data charts with doctors, trainers, or family. View your historical health metrics with an intuitive interface.

**Highlights:** Heart rate monitoring, Oxygen saturation tracking, Data sharing via QR code, Historical health data viewing, Intuitive app design

**Features:** macOS Compatibility

**In-app purchases:** none


### BarMath

[App page](https://appshunter.io/ios/app/barmath/id6737529139)

**In-app purchases:** none


## Frequently asked questions

### Is CadioWatch free?

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

### Is BarMath free?

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

### Do CadioWatch or BarMath have ads?

Neither CadioWatch nor BarMath shows ads.

### Which is updated more often, CadioWatch or BarMath?

CadioWatch ships an update every 5 days, and BarMath every 3 months. Most recently, CadioWatch was updated on September 30, 2026 and BarMath on October 9, 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.*