# Bon Calendar vs Mandala

The clearest difference is update cadence: Mandala at every 3 weeks against Bon Calendar's every 4 months. 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.

Bon Calendar ships an update every 4 months, Mandala every 3 weeks. The most recent releases landed on November 11, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Bon Calendar | Mandala |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 73 MB | 28 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GYALSHEN INSTITUTE FOR THE STUDY OF ZHANG ZHUNG AND TIBETAN CULTURE INC](https://appshunter.io/developer/1472969763) | [Chen-Hai Teng](https://appshunter.io/developer/1720135301) |

## What reviewers say

### Bon Calendar

[App page](https://appshunter.io/ios/app/bon-calendar/id1472969764)

Access the Tibetan Bön calendar with daily lunar dates, observances, and element combinations. View Tibetan dates for any year between 1901 and 2100, and access Bön prayer books in multiple languages. This app works fully offline.

**Highlights:** Tibetan lunar date and Bönpo year, Daily practice and observance, Month view with special days marked, Tibetan dates for 1901-2100, Bön prayer books in multiple languages, Offline functionality

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

**In-app purchases:** none


### Mandala

[App page](https://appshunter.io/ios/app/mandala-visualizing/id6473900723)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bon Calendar free?

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

### Is Mandala free?

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

### Do Bon Calendar or Mandala have ads?

Neither Bon Calendar nor Mandala shows ads.

### Which is updated more often, Bon Calendar or Mandala?

Bon Calendar ships an update every 4 months, and Mandala every 3 weeks. Most recently, Bon Calendar was updated on November 11, 2026 and Mandala on October 20, 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.*