# ShiftStamp vs hydo

The clearest difference is ads: hydo at none against ShiftStamp's shown. On price, in-app purchases, device support 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.

## The numbers

| Metric | ShiftStamp | hydo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | — | Weekly |
| Monetization | — | Free |
| Size | 5 MB | 5 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [JINSEOK OH](https://appshunter.io/developer/1841405794) | [Hyson Works](https://appshunter.io/developer/1824843528) |

## What reviewers say

### ShiftStamp

[App page](https://appshunter.io/ios/app/shiftstamp/id6757310423)

**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 ShiftStamp free?

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

### Is hydo free?

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

### Do ShiftStamp or hydo have ads?

ShiftStamp shows ads; hydo does not.

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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.*