# Conva School vs Word Master Stack

The clearest difference is in-app purchases: Conva School at none against Word Master Stack's 2. Conva School also leads on ads (none vs shown) and update cadence (every 2 months vs every 4 months). On price and device support there is nothing between them.

Both are free to download. Word Master Stack sells 2 in-app purchases, starting at $0.99 per month. Conva School asks for nothing beyond the download.

Conva School ships an update every 2 months, Word Master Stack every 4 months. The most recent releases landed on January 2, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Conva School | Word Master Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (166 ratings)](https://appshunter.io/ios/app/word-master-stack/id1634958856/reviews)** |
| Number of ratings | — | **166** |
| Positive reviews | — | 71.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | — | Free with in-app purchases |
| Size | 28 MB | 77 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ConvaTec Inc](https://appshunter.io/developer/495997295) | [Luis Gualandi](https://appshunter.io/developer/979597989) |

## What reviewers say

### Conva School

[App page](https://appshunter.io/ios/app/conva-school/id1459086911)

**Features:** macOS Compatibility

**In-app purchases:** none


### Word Master Stack

[App page](https://appshunter.io/ios/app/word-master-stack/id1634958856)

This is a word-building board game where players create words by placing letter tiles. Letters can be stacked on top of existing tiles, with higher stacks yielding more points. It offers offline play, multiple languages, and detailed statistics.

**Highlights:** Stack letters on top of existing tiles, Scoring based on stack height, Offline mode with 4 difficulty levels, Pass and Play mode, Built-in word definitions, Multiple languages supported, Detailed statistics

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Subscription Month | $0.99 | per month |
| Pro Subscription Year | $5.99 | per year |


## Frequently asked questions

### Is Conva School free?

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

### Is Word Master Stack free?

Word Master Stack is free to download, with in-app purchases available.

### Do Conva School or Word Master Stack have ads?

Word Master Stack shows ads; Conva School does not.

### Which is updated more often, Conva School or Word Master Stack?

Conva School ships an update every 2 months, and Word Master Stack every 4 months. Most recently, Conva School was updated on January 2, 2026 and Word Master Stack on October 10, 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.*