# Kinnu vs Devil's Advocate

The clearest difference is in-app purchases: Devil's Advocate at none against Kinnu's 4. Devil's Advocate also leads on review sentiment (100% vs 87%). Kinnu's advantage is update cadence (every 6 days vs every 2 months) and iOS requirement (17.0 vs 26.0). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Kinnu sells 4 in-app purchases, starting at $1.99 per month. Devil's Advocate asks for nothing beyond the download.

Kinnu ships an update every 6 days, Devil's Advocate every 2 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Kinnu | Devil's Advocate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (512 ratings)](https://appshunter.io/ios/app/kinnu-general-knowledge/id1625333066/reviews)** | — |
| Number of ratings | **512** | — |
| Positive reviews | 87.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 101 MB | 28 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Kinnu Limited](https://appshunter.io/developer/1625333068) | [Devil's Advocate](https://appshunter.io/developer/1809957318) |

## What reviewers say

### Kinnu

[App page](https://appshunter.io/ios/app/kinnu-general-knowledge/id1625333066)

This app offers bite-sized learning content across a wide range of subjects, from psychology and science to history and technology. It utilizes cognitive science and a unique "Memory Shield" technology to help users retain information effectively, making learning engaging and fun.

**Highlights:** Bite-sized, expert-edited content, Memory Shield technology for retention, Gamified learning sessions, Community-driven content development, Knowledge Bank progress tracking, Interactive, adaptive questions, Audio versions of content

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Kinnu Certificate | $7.99 | one-time |
| Kinnu Certificate | $14.99 | one-time |
| Kinnu Certificate | $19.99 | one-time |

**What reviewers like**

- 👍 Engaging learning experience
- 🚀 Efficient micro-learning format
- 🔒 No ads or subscriptions
- 💡 Wide range of interesting topics
- 👍 Gamified learning approach

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- 🐛 Syncing and progress issues
- 🐛 Inaccurate or incomplete information
- 🐛 AI-generated content quality concerns
- 🐛 Inability to contact developers

**Reported bugs**

- Frequent app crashes
- Progress and data loss issues
- Syncing problems
- Compatibility issues with older devices

**Requested features**

- Ability to highlight or take notes
- More in-depth content and sources
- Customization options (e.g., dark mode)
- Ability to connect with others
- Improved notification and reminder system


### Devil's Advocate

[App page](https://appshunter.io/ios/app/devils-advocate/id6744922518)

Prepare for your SQE exams with a comprehensive revision tool. Access over 1,000 MCQs, a personalized Blackletter Law Index, and performance analytics to track your progress and compare with peers. Includes podcasts and a study planner for on-the-go learning.

**Highlights:** Over 1,000 MCQs with filtering and timed mocks, Personalized Blackletter Law Index for saving rules, Spaced repetition for reviewing incorrect answers, Detailed SQE performance analytics and peer comparison, Module and subtopic score tracking, SQE revision podcasts and study planner

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

**In-app purchases:** none


## Frequently asked questions

### Is Kinnu free?

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

### Is Devil's Advocate free?

Devil's Advocate is free to download, with no in-app purchases.

### Do Kinnu or Devil's Advocate have ads?

Neither Kinnu nor Devil's Advocate shows ads.

### Which is updated more often, Kinnu or Devil's Advocate?

Kinnu ships an update every 6 days, and Devil's Advocate every 2 months. Most recently, Kinnu was updated on October 25, 2026 and Devil's Advocate on October 24, 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.*