# Satori Reader vs Numbiro Premium

The clearest difference is price: Satori Reader at Free against Numbiro Premium's $1.99. Satori Reader also leads on rating (4.8 vs 4.0) and ratings volume (218 vs 2). Numbiro Premium's advantage is in-app purchases (none vs 8) and iOS requirement (13.0 vs 15.0). On update cadence, ads and device support there is nothing between them.

Satori Reader is free to download; Numbiro Premium costs $1.99 up front. Satori Reader sells 3 in-app purchases, starting at $8.99 per month. Numbiro Premium asks for nothing beyond the download.

Satori Reader holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Satori Reader has 218 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 90% of Satori Reader's written reviews are positive against 67% of Numbiro Premium's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 25, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Satori Reader | Numbiro Premium |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.8 (218 ratings)](https://appshunter.io/ios/app/satori-reader/id1382950847/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/numbiro-premium/id1610373478/reviews) |
| Number of ratings | **218** | 2 |
| Positive reviews | **90.2% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 81 MB | 68 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Brak Software, Inc.](https://appshunter.io/developer/304088759) | [Sulisoft Limited](https://appshunter.io/developer/1610373474) |

## What reviewers say

### 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


### Numbiro Premium

[App page](https://appshunter.io/ios/app/numbiro-premium/id1610373478)

Practice recognizing spoken Japanese numbers in everyday conversation. Choose number ranges from single digits to billions and test your skills with Japanese counters. The premium version offers an ad-free experience and advanced features.

**Highlights:** Listen to spoken Japanese numbers, Identify numbers in conversation, Select custom number ranges, Practice Japanese counters, Timed challenges, Preset management

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

**In-app purchases:** none


## Frequently asked questions

### Is Satori Reader free?

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

### Is Numbiro Premium free?

Numbiro Premium costs $1.99, with no in-app purchases.

### Which has better reviews, Satori Reader or Numbiro Premium?

Satori Reader is rated higher. Satori Reader averages 4.8 out of 5 from 218 ratings, while Numbiro Premium averages 4.0 from 2 ratings.

### Do Satori Reader or Numbiro Premium have ads?

Neither Satori Reader nor Numbiro Premium shows ads.

### Which is updated more often, Satori Reader or Numbiro Premium?

Satori Reader ships an update every 3 months, and Numbiro Premium every 3 months. Most recently, Satori Reader was updated on October 25, 2026 and Numbiro Premium on October 23, 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.*