# VPD Chart vs Phenohunt

The clearest difference is rating: Phenohunt at 5.0 against VPD Chart's 4.5. Phenohunt also leads on in-app purchases (none vs 2). VPD Chart's advantage is ads (none vs shown) and ratings volume (30 vs 1). On price and device support there is nothing between them.

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

Phenohunt holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: VPD Chart has 30 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | VPD Chart | Phenohunt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (30 ratings)](https://appshunter.io/ios/app/vpd-chart/id6470015847/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/phenohunt/id6754624180/reviews)** |
| Number of ratings | **30** | 1 |
| Positive reviews | 73.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 49 MB | 9 MB |
| Requires iOS | **15.1** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [INNOVO DEV S.R.L.](https://appshunter.io/developer/1814828527) | [Houston Smothermon](https://appshunter.io/developer/1834355078) |

## What reviewers say

### VPD Chart

[App page](https://appshunter.io/ios/app/vpd-chart/id6470015847)

This app calculates Vapor Pressure Deficit (VPD) using air temperature, relative humidity, and canopy temperature. It offers real-time charting, sensor integration, and educational tools to understand plant growth environments. Organize data by zones and visualize dew point areas.

**Highlights:** VPD calculation, Interactive VPD chart, Sensor integration, Zone organization, Dew point visualization, Grow Timeline

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VPD Chart Plus (monthly) | $3.99 | per month |
| VPD Chart Plus (annual) | $29.99 | per year |


### Phenohunt

[App page](https://appshunter.io/ios/app/phenohunt/id6754624180)

Organize plant breeding data with photos, notes, and ratings. Track key dates, compare candidates, and generate scannable tags for quick access. Syncs across devices for seamless management.

**Highlights:** Phenohunt projects with pheno records, Photo gallery and visual timeline, Grower notes and ratings, Growing-conditions fields, Search and filtering, Printable QR/barcode plant tags

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VPD Chart free?

VPD Chart is free to download, with in-app purchases available.

### Is Phenohunt free?

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

### Which has better reviews, VPD Chart or Phenohunt?

Phenohunt is rated higher. VPD Chart averages 4.5 out of 5 from 30 ratings, while Phenohunt averages 5.0 from 1 ratings.

### Do VPD Chart or Phenohunt have ads?

Phenohunt shows ads; VPD Chart does not.

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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.*