# ChiSensor vs MoodMark

The clearest difference is device support: MoodMark at 3 against ChiSensor's 1. MoodMark also leads on iOS requirement (15.1 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. ChiSensor sells 3 in-app purchases, starting at $19.99 per month and MoodMark sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ChiSensor ships an update every 10 days, MoodMark every 5 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | ChiSensor | MoodMark |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 5 days** |
| Size | 29 MB | 47 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ProphecyGenesis TECHNOLOGY CO., LIMITED](https://appshunter.io/developer/1841805280) | [Katerina Vasileva](https://appshunter.io/developer/1887487558) |

## What reviewers say

### ChiSensor

[App page](https://appshunter.io/ios/app/chisensor/id6760758156)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Membership Monthly | $19.99 | per month |
| Pro Membership Yearly | $89.99 | per year |
| Professional Space Report | $6.99 | one-time |


### MoodMark

[App page](https://appshunter.io/ios/app/moodmark-mood-and-habit-tracker/id6761046182)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MoodMark Weekly | $6.99 | per 7 days |
| MoodMark Monthly | $6.99 | per month |
| MoodMark Yearly | $29.99 | per year |


## Frequently asked questions

### Is ChiSensor free?

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

### Is MoodMark free?

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

### Do ChiSensor or MoodMark have ads?

Neither ChiSensor nor MoodMark shows ads.

### Which is updated more often, ChiSensor or MoodMark?

ChiSensor ships an update every 10 days, and MoodMark every 5 days. Most recently, ChiSensor was updated on October 24, 2026 and MoodMark on October 24, 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.*