# Leaf Doctor vs LeafByte

The clearest difference is review sentiment: LeafByte at 100% against Leaf Doctor's 11%. LeafByte also leads on rating (4.8 vs 1.9) and update cadence (every 5 months vs every 42 months). On price, ratings volume, 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.

LeafByte holds the better App Store score, 4.8 against 1.9. Both are backed by a comparable volume of ratings — 22 and 13 respectively. Written reviews point the same way: 11% of Leaf Doctor's written reviews are positive against 100% of LeafByte's.

Leaf Doctor ships an update every 42 months, LeafByte every 5 months. The most recent releases landed on September 8, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Leaf Doctor | LeafByte |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.9 (22 ratings)](https://appshunter.io/ios/app/leaf-doctor/id874509900/reviews) | **[4.8 (13 ratings)](https://appshunter.io/ios/app/leafbyte/id1362985339/reviews)** |
| Number of ratings | **22** | 13 |
| Positive reviews | 11.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 3 MB | 21 MB |
| Requires iOS | **8.0** | 9.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [University of Hawaii](https://appshunter.io/developer/424938874) | [Abigail Getman-Pickering](https://appshunter.io/developer/1362985338) |

## What reviewers say

### Leaf Doctor

[App page](https://appshunter.io/ios/app/leaf-doctor/id874509900)

This app helps users assess plant diseases by analyzing photographs of affected plant organs. It calculates the percentage of diseased tissue by evaluating pixel colors against user-defined healthy colors. Results and images can be emailed to others.

**Highlights:** Quantitative plant disease assessment, Image analysis for diseased tissue percentage, User-defined healthy color parameters, Pixel color evaluation algorithm, Adjustable threshold for accuracy, Emailing of assessment data and photos

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Leaf Doctor free?

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

### Is LeafByte free?

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

### Which has better reviews, Leaf Doctor or LeafByte?

LeafByte is rated higher. Leaf Doctor averages 1.9 out of 5 from 22 ratings, while LeafByte averages 4.8 from 13 ratings.

### Do Leaf Doctor or LeafByte have ads?

Neither Leaf Doctor nor LeafByte shows ads.

### Which is updated more often, Leaf Doctor or LeafByte?

Leaf Doctor ships an update every 42 months, and LeafByte every 5 months. Most recently, Leaf Doctor was updated on September 8, 2026 and LeafByte on September 12, 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.*