# Celtic Tree Calendar vs Roots Calendar

The clearest difference is price: Roots Calendar at Free against Celtic Tree Calendar's $0.99. Roots Calendar also leads on update cadence (weekly vs every 3 weeks) and iOS requirement (13.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

Roots Calendar is free to download; Celtic Tree Calendar costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Celtic Tree Calendar ships an update every 3 weeks, Roots Calendar weekly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Celtic Tree Calendar | Roots Calendar |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Paid | — |
| Size | 33 MB | 30 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Stuart Woolley](https://appshunter.io/developer/315697638) | [Sebastiaan Castenmiller](https://appshunter.io/developer/1896776035) |

## What reviewers say

### Celtic Tree Calendar

[App page](https://appshunter.io/ios/app/celtic-tree-calendar/id474222176)

Explore your birth tree and its associated Ogham letter, folklore, and meaning. This app offers beautifully illustrated botanical artwork and genuine Ogham scholarship, allowing you to discover the Celtic Tree Year and share tree cards with friends. It works offline and is private by design.

**Highlights:** Discover your birth tree and Ogham letter, Interactive Celtic Tree Year wheel, Gallery of original botanical illustrations, Deep lore for each sign, Authentic Ogham information, Home-screen widgets, Share tree cards

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

**In-app purchases:** none


### Roots Calendar

[App page](https://appshunter.io/ios/app/roots-calendar/id6771264156)

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

**In-app purchases:** none


## Frequently asked questions

### Is Celtic Tree Calendar free?

Celtic Tree Calendar costs $0.99, with no in-app purchases.

### Is Roots Calendar free?

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

### Do Celtic Tree Calendar or Roots Calendar have ads?

Neither Celtic Tree Calendar nor Roots Calendar shows ads.

### Which is updated more often, Celtic Tree Calendar or Roots Calendar?

Celtic Tree Calendar ships an update every 3 weeks, and Roots Calendar weekly. Most recently, Celtic Tree Calendar was updated on November 6, 2026 and Roots Calendar on October 31, 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.*