# WordTrees vs Lexis Graph

The clearest difference is in-app purchases: WordTrees at none against Lexis Graph's 3. WordTrees also leads on update cadence (every 9 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Lexis Graph sells 3 in-app purchases, starting at $1.99 per month. WordTrees asks for nothing beyond the download.

WordTrees ships an update every 9 days, Lexis Graph every 3 weeks. The most recent releases landed on September 18, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | WordTrees | Lexis Graph |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Paid | — |
| Size | 16 MB | 121 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [祖浪 吴](https://appshunter.io/developer/1883572387) | [禹 杜](https://appshunter.io/developer/1826041186) |

## What reviewers say

### WordTrees

[App page](https://appshunter.io/ios/app/wordtrees/id6775192724)

This app uses AI to break down words into their roots, prefixes, and suffixes, revealing their origins and semantic connections. It builds a visual word network, expanding vocabulary through derivatives and related terms for efficient learning.

**Highlights:** AI-powered word dissection, Root, prefix, suffix analysis, Word relationship network, Visual tree diagram display, Vocabulary expansion tools, Native iOS design

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

**In-app purchases:** none


### Lexis Graph

[App page](https://appshunter.io/ios/app/lexis-graph/id6783677179)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 「Lexis Graph」Pro Monthly | $1.99 | per month |
| 「Lexis Graph」Pro Yearly | $14.99 | per year |
| 「Lexis Graph」Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is WordTrees free?

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

### Is Lexis Graph free?

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

### Do WordTrees or Lexis Graph have ads?

Neither WordTrees nor Lexis Graph shows ads.

### Which is updated more often, WordTrees or Lexis Graph?

WordTrees ships an update every 9 days, and Lexis Graph every 3 weeks. Most recently, WordTrees was updated on September 18, 2026 and Lexis Graph on September 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*