# iStackz vs Glossika

The clearest difference is ads: iStackz at none against Glossika's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. iStackz sells 1 in-app purchase, starting at $1.99 per month and Glossika sells 4 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

iStackz ships an update every 4 weeks, Glossika fortnightly. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | iStackz | Glossika |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.5 (35 ratings)](https://appshunter.io/ios/app/glossika-language-training/id6667095609/reviews)** |
| Number of ratings | — | **35** |
| Positive reviews | — | 7.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 58 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Christoph Luedi](https://appshunter.io/developer/918595512) | [Glossika Pte. Ltd.](https://appshunter.io/developer/1597902558) |

## What reviewers say

### iStackz

[App page](https://appshunter.io/ios/app/istackz/id918620482)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full functionality - monthly | $1.99 | per month |


### Glossika

[App page](https://appshunter.io/ios/app/glossika-language-training/id6667095609)

This app helps you overcome the fear of speaking a new language by providing short audio clips from native speakers and a smart training system. It uses spaced repetition to build speaking intuition and confidence, offering over 50 languages.

**Highlights:** Learn 50+ languages, 100% real native speaker audio, Spaced repetition system, Bite-sized, one-sentence training, Personalized learning recommendations, Constantly updated content

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PLUS MONTHLY | $19.99 | per month |
| Pro Monthly | $39.99 | per month |
| PLUS ANNUAL | $129.99 | per year |
| Pro Annual | $299.99 | per year |


## Frequently asked questions

### Is iStackz free?

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

### Is Glossika free?

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

### Do iStackz or Glossika have ads?

Glossika shows ads; iStackz does not.

### Which is updated more often, iStackz or Glossika?

iStackz ships an update every 4 weeks, and Glossika fortnightly. Most recently, iStackz was updated on October 19, 2026 and Glossika on October 24, 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.*