# FlutterLab vs Keyoku

The clearest difference is rating: Keyoku at 5.0 against FlutterLab's 3.7. FlutterLab's advantage is in-app purchases (none vs 2) and update cadence (every 5 days vs every 2 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Keyoku sells 2 in-app purchases, starting at $4.99 per month. FlutterLab asks for nothing beyond the download.

Keyoku holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

FlutterLab ships an update every 5 days, Keyoku every 2 weeks. The most recent releases landed on October 22, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | FlutterLab | Keyoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/flutterlab/id6464216661/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/keyoku/id6759081180/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Monetization | **Free** | Freemium |
| Size | 92 MB | 24 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hrishi Suthar](https://appshunter.io/developer/1660005858) | [Mark Martin](https://appshunter.io/developer/1581057549) |

## What reviewers say

### FlutterLab

[App page](https://appshunter.io/ios/app/flutterlab/id6464216661)

Learn Flutter development with a comprehensive course covering over 60 chapters, interactive code previews, and complete project examples. Master Dart, widgets, Firebase, and state management to build high-performance mobile apps.

**Highlights:** Extensive course content (60+ chapters), Dart and Flutter widget mastery, Firebase Database integration, GetX state management, Interactive code previews, Complete project examples with source code

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

**In-app purchases:** none


### Keyoku

[App page](https://appshunter.io/ios/app/keyoku/id6759081180)

Transform your notes and PDFs into interactive flashcards using on-device AI. Organize your study materials into colorful decks, track your progress visually, and build consistent study habits with daily streaks. Ideal for students and professionals preparing for exams or learning new subjects.

**Highlights:** AI-generated flashcards from notes/PDFs, Organize decks with custom colors and images, Visual progress tracking, Daily study streak building, Cloud sync across devices, Home screen widgets

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription | $34.99 | per year |


## Frequently asked questions

### Is FlutterLab free?

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

### Is Keyoku free?

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

### Which has better reviews, FlutterLab or Keyoku?

Keyoku is rated higher. FlutterLab averages 3.7 out of 5 from 3 ratings, while Keyoku averages 5.0 from 1 ratings.

### Do FlutterLab or Keyoku have ads?

Neither FlutterLab nor Keyoku shows ads.

### Which is updated more often, FlutterLab or Keyoku?

FlutterLab ships an update every 5 days, and Keyoku every 2 weeks. Most recently, FlutterLab was updated on October 22, 2026 and Keyoku on September 30, 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.*