# GRE WordsApp vs Kinnu

The clearest difference is in-app purchases: GRE WordsApp at none against Kinnu's 4. GRE WordsApp also leads on iOS requirement (12.0 vs 17.0). Kinnu's advantage is update cadence (every 6 days vs every 3 weeks). On price, review sentiment, ads 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. GRE WordsApp asks for nothing beyond the download.

GRE WordsApp ships an update every 3 weeks, Kinnu every 6 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | GRE WordsApp | Kinnu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (512 ratings)](https://appshunter.io/ios/app/kinnu-general-knowledge/id1625333066/reviews)** |
| Number of ratings | — | **512** |
| Positive reviews | **93.3% of reviews** | 87.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 47 MB | 101 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [IMS Learning Resources Private Limited](https://appshunter.io/developer/1504864440) | [Kinnu Limited](https://appshunter.io/developer/1625333068) |

## What reviewers say

### GRE WordsApp

[App page](https://appshunter.io/ios/app/gre-wordsapp/id1542175270)

Master GRE vocabulary with over 1300 essential words presented in bite-sized lessons. Enhance memorization through meanings, pictorial representations, synonyms, antonyms, and quizzes. Track progress and achieve accuracy targets for effective learning.

**Highlights:** 1300+ GRE words, Categorized by difficulty, Pictorial representations, Synonyms and antonyms, Quizzes and assessments, Bite-sized learning modules, Mnemonics for memorization

**In-app purchases:** none


### 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


## Frequently asked questions

### Is GRE WordsApp free?

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

### Is Kinnu free?

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

### Do GRE WordsApp or Kinnu have ads?

Neither GRE WordsApp nor Kinnu shows ads.

### Which is updated more often, GRE WordsApp or Kinnu?

GRE WordsApp ships an update every 3 weeks, and Kinnu every 6 days. Most recently, GRE WordsApp was updated on October 24, 2026 and Kinnu on October 25, 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.*