# SeeLock vs Dueday

The clearest difference is in-app purchases: Dueday at none against SeeLock's 6. Dueday also leads on ads (none vs shown). SeeLock's advantage is update cadence (weekly vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. SeeLock sells 6 in-app purchases, starting at $1.99 per month. Dueday asks for nothing beyond the download.

SeeLock ships an update weekly, Dueday every 2 weeks. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | SeeLock | Dueday |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 97 MB | 25 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tomoki Uda](https://appshunter.io/developer/1872424951) | [Yuki Okawa](https://appshunter.io/developer/1867195492) |

## What reviewers say

### SeeLock

[App page](https://appshunter.io/ios/app/seelock-phone-lock-timer/id6766048472)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Focus月間プラン (割引価格) | $1.99 | per month |
| Focus月間プラン | $1.99 | per month |
| Focus年間プラン (割引価格) | $19.99 | per year |
| Focus年間プラン | $19.99 | per year |
| Focus 買い切りプラン (割引価格) | $44.99 | one-time |
| Focus 買い切りプラン | $44.99 | one-time |


### Dueday

[App page](https://appshunter.io/ios/app/dueday-deadline-countdown/id6785360681)

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

**In-app purchases:** none


## Frequently asked questions

### Is SeeLock free?

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

### Is Dueday free?

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

### Do SeeLock or Dueday have ads?

SeeLock shows ads; Dueday does not.

### Which is updated more often, SeeLock or Dueday?

SeeLock ships an update weekly, and Dueday every 2 weeks. Most recently, SeeLock was updated on October 24, 2026 and Dueday on October 13, 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.*