# MR dyaco vs Happened

The clearest difference is update cadence: MR dyaco at every 10 days against Happened's monthly. MR dyaco also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MR dyaco ships an update every 10 days, Happened monthly. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | MR dyaco | Happened |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/happened-event-logger/id6553981795/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Monetization | — | Free |
| Size | 74 MB | 2 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dyaco International Inc.](https://appshunter.io/developer/1100739707) | [Pavel Shlyapnikov](https://appshunter.io/developer/1676899301) |

## What reviewers say

### MR dyaco

[App page](https://appshunter.io/ios/app/mr-dyaco/id6550908795)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Happened

[App page](https://appshunter.io/ios/app/happened-event-logger/id6553981795)

Easily log life events with customizable tags and analyze them using various metrics. Track symptoms, hobbies, or any personal occurrence with a simple tap and visualize your data over time. The app prioritizes your privacy, storing data locally or in your iCloud.

**Highlights:** One-tap event logging, Four tag types: Valueless, Quantified, Balance, Binary, Timeline divided into five parts of the day, Drag and drop tag management, 10 types of visual metrics, Customizable time ranges for analytics, CloudKit data storage for privacy

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MR dyaco free?

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

### Is Happened free?

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

### Do MR dyaco or Happened have ads?

Neither MR dyaco nor Happened shows ads.

### Which is updated more often, MR dyaco or Happened?

MR dyaco ships an update every 10 days, and Happened monthly. Most recently, MR dyaco was updated on October 25, 2026 and Happened on October 30, 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.*