# SlotIn vs Sitra

The clearest difference is in-app purchases: SlotIn at none against Sitra's 4. Sitra's advantage is iOS requirement (15.1 vs 18.5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sitra sells 4 in-app purchases, starting at $7.99 per month. SlotIn asks for nothing beyond the download.

SlotIn ships an update every 2 weeks, Sitra every 6 days. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SlotIn | Sitra |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | — | Freemium |
| Size | 6 MB | 43 MB |
| Requires iOS | 18.5 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Min Gyoung Kim](https://appshunter.io/developer/1814029057) | [Semicolon Dev Co.,Ltd.](https://appshunter.io/developer/1870802692) |

## What reviewers say

### SlotIn

[App page](https://appshunter.io/ios/app/slotin-calendar/id6757516972)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sitra

[App page](https://appshunter.io/ios/app/sitra-todo-workflow-tasks/id6761052956)

This app helps you manage tasks by keeping them attached to their original context, like notes, files, and recordings. It streamlines your workflow by bringing all relevant information together, allowing you to focus on immediate actions and easily resume work.

**Highlights:** Organize notes, files, links, and recordings by situation, Manage daily tasks and upcoming work, Connect schedules and actions to context, Transcribe recordings into summaries and tasks, AI-powered organization and drafting, Quickly resume recent work

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sitra Plus Monthly | $7.99 | per month |
| Sitra Pro Monthly | $14.99 | per month |
| Sitra Plus Annual | $79.99 | per year |
| Sitra Pro Annual | $149.99 | per year |


## Frequently asked questions

### Is SlotIn free?

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

### Is Sitra free?

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

### Do SlotIn or Sitra have ads?

Neither SlotIn nor Sitra shows ads.

### Which is updated more often, SlotIn or Sitra?

SlotIn ships an update every 2 weeks, and Sitra every 6 days. Most recently, SlotIn was updated on October 24, 2026 and Sitra on October 31, 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.*