# Subject Quest vs Grow Fluency

The clearest difference is in-app purchases: Subject Quest at none against Grow Fluency's 2. Grow Fluency's advantage is update cadence (every 4 days vs every 5 months) and device support (4 vs 2). On price, ads and iOS requirement there is nothing between them.

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

Subject Quest ships an update every 5 months, Grow Fluency every 4 days. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Subject Quest | Grow Fluency |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (4 ratings)](https://appshunter.io/ios/app/grow-fluency-learn-languages/id6766739898/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 41 MB | 70 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Sagarika Annapragada](https://appshunter.io/developer/1875166807) | [Josiah Reed](https://appshunter.io/developer/1896320359) |

## What reviewers say

### Subject Quest

[App page](https://appshunter.io/ios/app/subject-quest/id6760158960)

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

**In-app purchases:** none


### Grow Fluency

[App page](https://appshunter.io/ios/app/grow-fluency-learn-languages/id6766739898)

Learn languages by reading engaging stories. Tap any word for instant translation and save it for spaced repetition review. An AI tutor and Anki import support your learning journey.

**Highlights:** Learn through stories, Tap-to-translate, Spaced repetition review, AI language tutor, Import vocabulary (Anki), Progress tracking

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gibberfish Pro | $4.99 | per month |
| Gibberfish Pro | $39.99 | per year |


## Frequently asked questions

### Is Subject Quest free?

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

### Is Grow Fluency free?

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

### Do Subject Quest or Grow Fluency have ads?

Neither Subject Quest nor Grow Fluency shows ads.

### Which is updated more often, Subject Quest or Grow Fluency?

Subject Quest ships an update every 5 months, and Grow Fluency every 4 days. Most recently, Subject Quest was updated on October 14, 2026 and Grow Fluency on October 7, 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.*