# Purdue Shrub Doctor vs Plant Problem Identifier

The clearest difference is review sentiment: Plant Problem Identifier at 50% against Purdue Shrub Doctor's 0%. Plant Problem Identifier also leads on rating (4.5 vs 2.0) and ratings volume (171 vs 4). Purdue Shrub Doctor's advantage is in-app purchases (none vs 1) and iOS requirement (11 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Plant Problem Identifier sells 1 in-app purchase, starting at $3.99 per 7 days. Purdue Shrub Doctor asks for nothing beyond the download.

Plant Problem Identifier holds the better App Store score, 4.5 against 2.0. That said, the two scores are not equally well evidenced: Plant Problem Identifier has 171 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of Purdue Shrub Doctor's written reviews are positive against 50% of Plant Problem Identifier's.

Purdue Shrub Doctor ships an update every 5 months, Plant Problem Identifier every 9 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Purdue Shrub Doctor | Plant Problem Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/purdue-shrub-doctor/id1471139834/reviews) | **[4.5 (171 ratings)](https://appshunter.io/ios/app/plant-problem-identifier/id6444363502/reviews)** |
| Number of ratings | 4 | **171** |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 9 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 351 MB | 96 MB |
| Requires iOS | **11** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Purdue University](https://appshunter.io/developer/371741257) | [Uladzislau Yanushka](https://appshunter.io/developer/1464429742) |

## What reviewers say

### Purdue Shrub Doctor

[App page](https://appshunter.io/ios/app/purdue-shrub-doctor/id1471139834)

Identify shrub problems by matching damaged plant parts to over 1000 high-resolution photos. Get expert recommendations from Purdue University on managing over 200 shrub issues on more than 100 shrub types. Useful for professionals and home gardeners in the Midwestern and Eastern United States.

**Highlights:** Identify shrub problems via photo matching, Detailed damage descriptions, Expert management recommendations, Search by shrub or pest, Over 1000 high-resolution photos

**Features:** Vision Pro support

**In-app purchases:** none


### Plant Problem Identifier

[App page](https://appshunter.io/ios/app/plant-problem-identifier/id6444363502)

Instantly identify plants and diagnose plant diseases using your phone's camera. Get detailed information on over 35,000 plant species and 90+ disease types, along with treatment suggestions. Access helpful articles on plant care.

**Highlights:** Identify over 35,000 plant species by photo, Diagnose over 90 plant disease classes, Receive plant and disease information, Get treatment suggestions for diseases, Read useful articles on plant care, Unlimited access with Pro subscription

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plant Identifier Pro | $3.99 | per 7 days |


## Frequently asked questions

### Is Purdue Shrub Doctor free?

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

### Is Plant Problem Identifier free?

Plant Problem Identifier is free to download, with in-app purchases available.

### Which has better reviews, Purdue Shrub Doctor or Plant Problem Identifier?

Plant Problem Identifier is rated higher. Purdue Shrub Doctor averages 2.0 out of 5 from 4 ratings, while Plant Problem Identifier averages 4.5 from 171 ratings.

### Do Purdue Shrub Doctor or Plant Problem Identifier have ads?

Neither Purdue Shrub Doctor nor Plant Problem Identifier shows ads.

### Which is updated more often, Purdue Shrub Doctor or Plant Problem Identifier?

Purdue Shrub Doctor ships an update every 5 months, and Plant Problem Identifier every 9 months. Most recently, Purdue Shrub Doctor was updated on November 3, 2026 and Plant Problem Identifier on November 7, 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.*