# Cardiogram vs PMOSense

The clearest difference is price: PMOSense at Free against Cardiogram's $0.99. PMOSense also leads on update cadence (weekly vs every 3 weeks). Cardiogram's advantage is chart position (#152 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

PMOSense is free to download; Cardiogram costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Cardiogram ships an update every 3 weeks, PMOSense weekly. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Cardiogram | PMOSense |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[1.3 (6 ratings)](https://appshunter.io/ios/app/cardiogram/id6758928120/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Paid | — |
| Best chart rank | **#152** | — |
| Size | 1 MB | 50 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [JOhn Lyons](https://appshunter.io/developer/571586394) | [Gwenne Moses](https://appshunter.io/developer/1896764007) |

## What reviewers say

### Cardiogram

[App page](https://appshunter.io/ios/app/cardiogram/id6758928120)

**Currently charting:** #152 Top Paid · Health & Fitness (US App Store)

Monitor your heart rate and key cardio signals in real time with a clear, scrolling graph. Designed for continuous feedback, it offers insights into energy burn and breathing rate without the need to manage workout sessions.

**Highlights:** Live heart rate monitoring, Scrolling cardio signal graph, Energy burn insights, Breathing rate tracking, Heart variability data, Continuous monitoring

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### PMOSense

[App page](https://appshunter.io/ios/app/pmosense-pcos-cycle-tracker/id6770803676)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cardiogram free?

Cardiogram costs $0.99, with no in-app purchases.

### Is PMOSense free?

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

### Do Cardiogram or PMOSense have ads?

Neither Cardiogram nor PMOSense shows ads.

### Which is updated more often, Cardiogram or PMOSense?

Cardiogram ships an update every 3 weeks, and PMOSense weekly. Most recently, Cardiogram was updated on October 10, 2026 and PMOSense 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.*