# LeafByte vs ACTT

The clearest difference is iOS requirement: LeafByte at 9.0 against ACTT's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 5 months. Both last shipped on October 1, 2026.

## The numbers

| Metric | LeafByte | ACTT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13 ratings)](https://appshunter.io/ios/app/leafbyte/id1362985339/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | Free | — |
| Size | 21 MB | 43 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Abigail Getman-Pickering](https://appshunter.io/developer/1362985338) | [University of South Carolina](https://appshunter.io/developer/694863391) |

## What reviewers say

### LeafByte

[App page](https://appshunter.io/ios/app/leafbyte/id1362985339)

This application allows users to quickly and accurately measure leaf area and herbivory by taking photos. It supports various leaf types and conditions, and saves data to spreadsheets. Features include freehand drawing for reconstruction and automatic skew correction.

**Highlights:** Measure leaf area and herbivory, Save data to spreadsheets, Analyze leaves of any size, Reconstruct missing leaf margins, Measure dark or light plant material, Read barcodes, Correct photo skew

**Features:** macOS Compatibility

**In-app purchases:** none


### ACTT

[App page](https://appshunter.io/ios/app/actt-study/id6744712322)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LeafByte free?

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

### Is ACTT free?

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

### Do LeafByte or ACTT have ads?

Neither LeafByte nor ACTT shows ads.

### Which is updated more often, LeafByte or ACTT?

LeafByte ships an update every 5 months, and ACTT every 5 months. Most recently, LeafByte was updated on October 1, 2026 and ACTT on October 1, 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.*