# Todo Log vs hydo

The clearest difference is update cadence: Todo Log at daily against hydo's fortnightly. 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.

Todo Log ships an update daily, hydo fortnightly. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Todo Log | hydo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Fortnightly |
| Monetization | — | Free |
| Size | 44 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kyubo Shim](https://appshunter.io/developer/1655277220) | [Hyson Works](https://appshunter.io/developer/1824843528) |

## What reviewers say

### Todo Log

[App page](https://appshunter.io/ios/app/todo-log/id6748137402)

**In-app purchases:** none


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

**In-app purchases:** none


## Frequently asked questions

### Is Todo Log free?

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

### Is hydo free?

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

### Do Todo Log or hydo have ads?

Neither Todo Log nor hydo shows ads.

### Which is updated more often, Todo Log or hydo?

Todo Log ships an update daily, and hydo fortnightly. Most recently, Todo Log was updated on October 5, 2026 and hydo on October 8, 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.*