# hydo vs Runn

The clearest difference is review sentiment: hydo at 100% against Runn's 50%. hydo also leads on monetization model (free vs freemium). Runn's advantage is update cadence (every 3 days vs fortnightly) and device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. hydo sells 2 in-app purchases, starting at $1.99 per month and Runn sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

hydo ships an update fortnightly, Runn every 3 days. The most recent releases landed on October 31, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | hydo | Runn |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | **Free** | Freemium |
| Size | 13 MB | 6 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, Mac | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Hyson Works](https://appshunter.io/developer/1824843528) | [마야크루](https://appshunter.io/developer/1242322359) |

## What reviewers say

### hydo

[App page](https://appshunter.io/ios/app/hydo/id6794805038)

View your monthly calendar directly on your lock screen without unlocking your phone or opening an app. Organize events by group with distinct colors and easily share calendars with others using invite codes. Customize the calendar's size and position over your photos.

**Highlights:** Monthly calendar on lock screen, Group-specific color coding, Invite code sharing, Customizable calendar placement, Today's remaining schedule widget, Home screen widgets

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| hydo 프리미엄 (월간) | $1.99 | per month |
| hydo 프리미엄 (연간) | $17.99 | per year |


### Runn

[App page](https://appshunter.io/ios/app/runn-to-do-list-and-widget/id6795113291)

This app offers a straightforward to-do list experience focused on a single, uncluttered list. It provides home screen widgets for quick task management and offers a free tier with limited tasks and a premium option for backup and cross-device syncing.

**Highlights:** Single clean task list, Home screen widgets, Quick task completion via widget, Color tags, Cloud backup, Cross-device synchronization

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Runn Pro | $1.99 | per month |


## Frequently asked questions

### Is hydo free?

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

### Is Runn free?

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

### Do hydo or Runn have ads?

Neither hydo nor Runn shows ads.

### Which is updated more often, hydo or Runn?

hydo ships an update fortnightly, and Runn every 3 days. Most recently, hydo was updated on October 31, 2026 and Runn on October 27, 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.*