# Under Trees vs cal

The clearest difference is in-app purchases: cal at none against Under Trees's 8. Under Trees's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 26.4). On price, update cadence and ads there is nothing between them.

Both are free to download. Under Trees sells 8 in-app purchases, starting at $0.99 per month. cal asks for nothing beyond the download.

Under Trees ships an update every 8 days, cal every 10 days. The most recent releases landed on September 15, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Under Trees | cal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cal-diary/id6766692881/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 10 days |
| Monetization | — | Free |
| Size | 93 MB | 1 MB |
| Requires iOS | **11.0** | 26.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Lang Hoang](https://appshunter.io/developer/1493923379) | [Begimay Ahmatova](https://appshunter.io/developer/1896315951) |

## What reviewers say

### Under Trees

[App page](https://appshunter.io/ios/app/under-trees/id6470956649)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Text only plan (One month) | $0.99 | per month |
| Media plan (One month) | $2.99 | per month |
| Text only plan -75% | $3.99 | per year |
| Text only plan -50% | $5.99 | per year |
| Media plan -75% | $9.99 | per year |
| Text only plan | $11.99 | per year |
| Media plan -50% | $17.99 | per year |
| Media plan (One year) | $35.99 | per year |


### cal

[App page](https://appshunter.io/ios/app/cal-diary/id6766692881)

Capture and revisit your daily memories with photos and notes. This app presents your month as a visual calendar, allowing you to easily view past moments. Your data remains private and stored solely on your device.

**Highlights:** Add photos to any day, Jot down notes for each entry, View month as a photo calendar, Full-screen view of daily memories, Export entries for sharing, Private, on-device storage

**In-app purchases:** none


## Frequently asked questions

### Is Under Trees free?

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

### Is cal free?

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

### Do Under Trees or cal have ads?

Neither Under Trees nor cal shows ads.

### Which is updated more often, Under Trees or cal?

Under Trees ships an update every 8 days, and cal every 10 days. Most recently, Under Trees was updated on September 15, 2026 and cal on September 23, 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.*