# Her Trails vs Intervention Calin

The clearest difference is update cadence: Intervention Calin at every 3 days against Her Trails's fortnightly. 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.

Her Trails ships an update fortnightly, Intervention Calin every 3 days. The most recent releases landed on October 13, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Her Trails | Intervention Calin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 44 MB | 51 MB |
| Requires iOS | 16.6 | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Her Trails Pty Ltd](https://appshunter.io/developer/1797654390) | [Intervention Câlin](https://appshunter.io/developer/1780427080) |

## What reviewers say

### Her Trails

[App page](https://appshunter.io/ios/app/her-trails/id6504642219)

**In-app purchases:** none


### Intervention Calin

[App page](https://appshunter.io/ios/app/intervention-calin/id6800853919)

**In-app purchases:** none


## Frequently asked questions

### Is Her Trails free?

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

### Is Intervention Calin free?

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

### Do Her Trails or Intervention Calin have ads?

Neither Her Trails nor Intervention Calin shows ads.

### Which is updated more often, Her Trails or Intervention Calin?

Her Trails ships an update fortnightly, and Intervention Calin every 3 days. Most recently, Her Trails was updated on October 13, 2026 and Intervention Calin on October 17, 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.*