# iKnow! vs Satori Reader

iKnow! and Satori Reader both sit at 4.8 stars, but that hides the real split: 90% of Satori Reader's written reviews are positive against 79% of iKnow!'s. iKnow!'s advantage is update cadence (every 5 weeks vs every 3 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. iKnow! sells 10 one-off in-app purchases and Satori Reader sells 3 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for iKnow! against 4.8 for Satori Reader. Both are backed by a comparable volume of ratings — 490 and 215 respectively. Written reviews are what separate them: 79% of iKnow!'s written reviews are positive against 90% of Satori Reader's.

iKnow! ships an update every 5 weeks, Satori Reader every 3 months. The most recent releases landed on October 14, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | iKnow! | Satori Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (490 ratings)](https://appshunter.io/ios/app/iknow/id417713473/reviews) | [4.8 (215 ratings)](https://appshunter.io/ios/app/satori-reader/id1382950847/reviews) |
| Number of ratings | **490** | 215 |
| Positive reviews | 78.6% of reviews | **90.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 19 MB | 79 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [DMM.com LLC](https://appshunter.io/developer/373765747) | [Brak Software, Inc.](https://appshunter.io/developer/304088759) |

## What reviewers say

### iKnow!

[App page](https://appshunter.io/ios/app/iknow/id417713473)

Master Japanese, Chinese, and English with this app's adaptive learning engine. It offers multiple study modes and synchronizes your progress across devices for flexible learning. Ideal for anyone looking to efficiently acquire new vocabulary and sentence structures.

**Highlights:** Adaptive learning engine, Spaced rehearsal pattern, Five study modes, Vocabulary and sentence mastery, Progress synchronization, Audio playback with speed control

**Features:** iMessage stickers, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Month Plan | $23.99 | one-time |
| 12 Month Plan | $39.99 | one-time |
| 12+1 Month Plan | $39.99 | one-time |
| 6 Month Plan | $47.99 | one-time |
| 6+1 Month Plan | $47.99 | one-time |
| 12+3 Month Plan | $54.99 | one-time |
| 12 Month Plan | $59.99 | one-time |
| 12 Month Plan | $64.99 | one-time |
| 12+1 Month Plan | $64.99 | one-time |
| 12 Month Plan | $69.99 | one-time |

**What reviewers like**

- 🚀 Excellent for vocabulary learning
- 👍 Great for learning Japanese and Chinese
- 👍 Effective spaced repetition system
- 👍 Useful example sentences and audio
- 👍 Convenient for studying on the go

**What reviewers complain about**

- 🐛 Stability issues with recent updates
- 🐛 Crashes and freezes reported
- 🐛 Audio playback problems
- 🔒 Subscription-based model
- 👎 Limited customization options

**Reported bugs**

- Crashes on startup
- Blank screens during multiple-choice questions
- Issues with typing answers and registering input
- Audio not playing for some example sentences

**Requested features**

- Add more languages beyond Japanese and Chinese
- Improve community course integration
- Implement a dark mode
- Add more example sentences per word
- Provide an option to learn without kanji


### Satori Reader

[App page](https://appshunter.io/ios/app/satori-reader/id1382950847)

Enhance your Japanese reading and listening skills with engaging stories written by native speakers. Features adaptive kanji, smart definitions, and spaced repetition to build vocabulary. Get clarity with friendly annotations and human feedback.

**Highlights:** Compelling stories by native speakers, Audio narration by voice actors, Adaptive kanji presentation, Smart word definitions, Friendly annotations, Spaced repetition vocabulary review, Human feedback and support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Satori Reader Monthly | $8.99 | per month |
| Satori Reader Annual | $89.99 | per year |
| Satori Reader Annual | $89.99 | per year |

**What reviewers like**

- 🚀 Excellent for improving reading and listening skills
- 👍 Detailed grammar and vocabulary explanations
- 🎨 Customizable display settings for kanji/furigana
- 💡 Integrated spaced repetition flashcard system
- 🎧 High-quality voice acting and audio

**What reviewers complain about**

- 🐛 Occasional app crashes or sync issues
- 🕰️ Lack of speed control for audio playback
- 💰 Subscription-based model can be expensive
- 🔍 Limited search/navigation functionality

**Reported bugs**

- Login issues and account creation problems
- Syncing and loading delays on some devices

**Requested features**

- Dark mode option
- Ability to loop audio playback
- Kanji lookup/learning tools integration
- More advanced/diverse content selection


## Frequently asked questions

### Is iKnow! free?

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

### Is Satori Reader free?

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

### Which has better reviews, iKnow! or Satori Reader?

iKnow! and Satori Reader are both rated 4.8 out of 5 on the App Store, from 490 and 215 ratings respectively.

### Do iKnow! or Satori Reader have ads?

Neither iKnow! nor Satori Reader shows ads.

### Which is updated more often, iKnow! or Satori Reader?

iKnow! ships an update every 5 weeks, and Satori Reader every 3 months. Most recently, iKnow! was updated on October 14, 2026 and Satori Reader on October 12, 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.*