# LI vs TreeMeasure Pro

The clearest difference is in-app purchases: LI at none against TreeMeasure Pro's 2. LI also leads on iOS requirement (6.1 vs 26.0). TreeMeasure Pro's advantage is update cadence (every 3 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. TreeMeasure Pro sells 2 in-app purchases, starting at $3.99 per month. LI asks for nothing beyond the download.

LI ships an update every 2 months, TreeMeasure Pro every 3 days. The most recent releases landed on October 9, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | LI | TreeMeasure Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 6 MB | 14 MB |
| Requires iOS | **6.1** | 26.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [LI-COR Biosciences](https://appshunter.io/developer/527967217) | [Florin Nicola](https://appshunter.io/developer/1834914789) |

## What reviewers say

### LI

[App page](https://appshunter.io/ios/app/li-8100app/id527967214)

**Features:** macOS Compatibility

**In-app purchases:** none


### TreeMeasure Pro

[App page](https://appshunter.io/ios/app/treemeasure-pro/id6760644907)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TreeMeasure Pro Monthly | $3.99 | per month |
| TreeMeasure Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is LI free?

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

### Is TreeMeasure Pro free?

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

### Do LI or TreeMeasure Pro have ads?

Neither LI nor TreeMeasure Pro shows ads.

### Which is updated more often, LI or TreeMeasure Pro?

LI ships an update every 2 months, and TreeMeasure Pro every 3 days. Most recently, LI was updated on October 9, 2026 and TreeMeasure Pro on November 9, 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.*