# OneTodo vs Ducky IN

The clearest difference is in-app purchases: Ducky IN at none against OneTodo's 3. Ducky IN also leads on iOS requirement (12.0 vs 17.6). OneTodo's advantage is review sentiment (71% vs 50%) and update cadence (every 9 days vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. OneTodo sells 3 in-app purchases, starting at $0.99 per month. Ducky IN asks for nothing beyond the download.

OneTodo ships an update every 9 days, Ducky IN monthly. The most recent releases landed on October 12, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | OneTodo | Ducky IN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/onetodo-personal-task-system/id1546530435/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **71.4% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | Subscription | **Free** |
| Size | 140 MB | 26 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chengdu Reinvent Technology Co., Ltd.](https://appshunter.io/developer/1250290964) | [Creayond Technology Co., LTD](https://appshunter.io/developer/1565775609) |

## What reviewers say

### OneTodo

[App page](https://appshunter.io/ios/app/onetodo-personal-task-system/id1546530435)

Organize your life with a hierarchical task management system. Create tasks, pages, projects, boxes, and spaces to structure your to-do list and plans. Track project progress and manage separate data spaces for different aspects of your life.

**Highlights:** Hierarchical task organization (Task > Page > Project > Box > Space), Create standalone tasks, Use pages as project subtitles, Track project completion progress, Group projects with boxes, Separate data spaces for internal accounts

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OneTodo Pro (Monthly) | $0.99 | per month |
| OneTodo Pro (Yearly) | $6.99 | per year |
| OneTodo Pro (Lifetime) | $14.99 | one-time |


### Ducky IN

[App page](https://appshunter.io/ios/app/ducky-in/id1565775607)

This app allows employees to easily clock in and out using QR code scanning. It integrates with a backend system for scheduling and attendance tracking, providing accessible employee schedules and attendance records.

**Highlights:** QR code clock-in/out, Employee schedule viewing, Attendance record tracking, Backend scheduling management, Report generation and download

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OneTodo free?

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

### Is Ducky IN free?

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

### Do OneTodo or Ducky IN have ads?

Neither OneTodo nor Ducky IN shows ads.

### Which is updated more often, OneTodo or Ducky IN?

OneTodo ships an update every 9 days, and Ducky IN monthly. Most recently, OneTodo was updated on October 12, 2026 and Ducky IN on October 17, 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.*