# Derupt vs Ki

The clearest difference is in-app purchases: Derupt at none against Ki's 1. Ki's advantage is update cadence (every 2 days vs every 3 days) and iOS requirement (18.6 vs 26.2). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Ki sells 1 one-off in-app purchase. Derupt asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Derupt against 5.0 for Ki. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Derupt ships an update every 3 days, Ki every 2 days. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Derupt | Ki |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/derupt/id6759691513/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/ki-note/id6761021371/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | **Every 2 days** |
| Monetization | Free | Free |
| Size | 2 MB | 4 MB |
| Requires iOS | 26.2 | **18.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Roger Collins](https://appshunter.io/developer/1880234834) | [Juan Casanueva](https://appshunter.io/developer/427769040) |

## What reviewers say

### Derupt

[App page](https://appshunter.io/ios/app/derupt/id6759691513)

Capture ideas and organize tasks with this personal productivity app. It helps you stay accountable to daily goals by categorizing tasks by energy type and offering smart recommendations based on your context and priorities. Review your progress and build focused daily plans.

**Highlights:** Quick text and voice capture, Task categorization by energy type, Smart task recommendations, Context-based filtering, Daily planning and review, Recurring task templates, Voice capture with Siri

**Features:** macOS Compatibility

**In-app purchases:** none


### Ki

[App page](https://appshunter.io/ios/app/ki-note/id6761021371)

Capture, organize, and connect all your learning in one place. This app allows you to save notes, links, code snippets, and ideas, then link them together to build a web of knowledge. Find anything fast with full-text search and visual knowledge graphs.

**Highlights:** Capture notes, links, quotes, code snippets, and ideas, Organize with color-coded tags and custom topics, Connect notes with bidirectional linking, Visualize knowledge with interactive graphs, Full-text search and saved searches, Quick capture via floating button and widgets, Review workflow for managing notes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy me a coffee | $0.99 | one-time |


## Frequently asked questions

### Is Derupt free?

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

### Is Ki free?

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

### Which has better reviews, Derupt or Ki?

Derupt and Ki are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Derupt or Ki have ads?

Neither Derupt nor Ki shows ads.

### Which is updated more often, Derupt or Ki?

Derupt ships an update every 3 days, and Ki every 2 days. Most recently, Derupt was updated on October 1, 2026 and Ki on September 29, 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.*