# Lexi vs Expression Builder

The clearest difference is in-app purchases: Expression Builder at none against Lexi's 1. Expression Builder also leads on update cadence (every 4 weeks vs every 2 months). Lexi's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Lexi sells 1 in-app purchase, starting at $29.99 per year. Expression Builder asks for nothing beyond the download.

Lexi ships an update every 2 months, Expression Builder every 4 weeks. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Lexi | Expression Builder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Size | 31 MB | 114 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Onur Mercan](https://appshunter.io/developer/1869705764) | [Nezihe Sozen](https://appshunter.io/developer/1825918288) |

## What reviewers say

### Lexi

[App page](https://appshunter.io/ios/app/lexi-learn-vocabulary-fast/id6758303343)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access all | $29.99 | per year |


### Expression Builder

[App page](https://appshunter.io/ios/app/expression-builder-first-3000/id6775914345)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lexi free?

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

### Is Expression Builder free?

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

### Do Lexi or Expression Builder have ads?

Expression Builder shows ads; Lexi does not.

### Which is updated more often, Lexi or Expression Builder?

Lexi ships an update every 2 months, and Expression Builder every 4 weeks. Most recently, Lexi was updated on October 25, 2026 and Expression Builder on October 28, 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.*