# ARTEMIS App vs tend. app

The clearest difference is in-app purchases: ARTEMIS App at none against tend. app's 3. ARTEMIS App also leads on update cadence (weekly vs every 3 weeks) and iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. tend. app sells 3 in-app purchases, starting at $2.99 per month. ARTEMIS App asks for nothing beyond the download.

ARTEMIS App ships an update weekly, tend. app every 3 weeks. Both last shipped on October 5, 2026.

## The numbers

| Metric | ARTEMIS App | tend. app |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Size | 24 MB | 39 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [University of Oxford](https://appshunter.io/developer/688778837) | [Emily Willis](https://appshunter.io/developer/1840855569) |

## What reviewers say

### ARTEMIS App

[App page](https://appshunter.io/ios/app/artemis-app/id1660236975)

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

**In-app purchases:** none


### tend. app

[App page](https://appshunter.io/ios/app/tend-app/id6752772691)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pocket CBT Pro Monthly | $2.99 | per month |
| Pocket CBT Pro Yearly | $34.99 | per year |
| Pocket CBT Pro | $3.99 | one-time |


## Frequently asked questions

### Is ARTEMIS App free?

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

### Is tend. app free?

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

### Do ARTEMIS App or tend. app have ads?

Neither ARTEMIS App nor tend. app shows ads.

### Which is updated more often, ARTEMIS App or tend. app?

ARTEMIS App ships an update weekly, and tend. app every 3 weeks. Most recently, ARTEMIS App was updated on October 5, 2026 and tend. app on October 5, 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.*