# GrowStack vs PROMPTHAUS

The clearest difference is in-app purchases: GrowStack at none against PROMPTHAUS's 4. GrowStack also leads on device support (4 vs 2) and iOS requirement (13.4 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. PROMPTHAUS sells 4 in-app purchases, starting at $4.99 per 7 days. GrowStack asks for nothing beyond the download.

GrowStack ships an update weekly, PROMPTHAUS every 3 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | GrowStack | PROMPTHAUS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (8 ratings)](https://appshunter.io/ios/app/prompthaus-ai-vocabulary/id6776314407/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | — | Paid |
| Size | 46 MB | 156 MB |
| Requires iOS | **13.4** | 18.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Growstack Inc](https://appshunter.io/developer/1787868924) | [Uzair Hussain](https://appshunter.io/developer/1893750315) |

## What reviewers say

### GrowStack

[App page](https://appshunter.io/ios/app/growstack/id6736618434)

**In-app purchases:** none


### PROMPTHAUS

[App page](https://appshunter.io/ios/app/prompthaus-ai-vocabulary/id6776314407)

Learn one new term daily related to modern work and AI. Explore definitions, real-world examples, and practice with interactive quizzes. Import your own project files to build a personalized vocabulary deck.

**Highlights:** Daily term learning, Real-world examples, Interactive quizzes, Import project files, Personalized vocabulary decks, Multiple difficulty levels

**Features:** macOS Compatibility, Safari Extension, Vision Pro support, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Founder Week | $4.99 | per 7 days |
| Premium Monthly | $4.99 | per month |
| Founder Annual | $39.99 | per year |
| Premium Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is GrowStack free?

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

### Is PROMPTHAUS free?

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

### Do GrowStack or PROMPTHAUS have ads?

Neither GrowStack nor PROMPTHAUS shows ads.

### Which is updated more often, GrowStack or PROMPTHAUS?

GrowStack ships an update weekly, and PROMPTHAUS every 3 days. Most recently, GrowStack was updated on October 30, 2026 and PROMPTHAUS on November 5, 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.*