# TreeSnap vs MISIN Field Observer

The clearest difference is rating: MISIN Field Observer at 5.0 against TreeSnap's 4.6. TreeSnap's advantage is update cadence (every 3 weeks vs every 2 months) and ratings volume (19 vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.

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

MISIN Field Observer holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: TreeSnap has 19 ratings behind it against 3, so its average is the more settled of the two.

TreeSnap ships an update every 3 weeks, MISIN Field Observer every 2 months. The most recent releases landed on October 7, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | TreeSnap | MISIN Field Observer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (19 ratings)](https://appshunter.io/ios/app/treesnap/id1226499160/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/misin-field-observer/id6770533769/reviews)** |
| Number of ratings | **19** | 3 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 134 MB | 72 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [University of Tennessee](https://appshunter.io/developer/390185553) | [Applied Spatial Ecology and Technical Services](https://appshunter.io/developer/549257962) |

## What reviewers say

### TreeSnap

[App page](https://appshunter.io/ios/app/treesnap/id1226499160)

Contribute to vital tree research by identifying and tagging healthy trees in your area. Your data helps scientists study genetic diversity and develop better tree breeding programs to combat invasive diseases and pests.

**Highlights:** Identify and tag trees, Contribute to scientific research, Support forest health initiatives, Locate trees for genetic studies, Aid tree breeding programs

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

**In-app purchases:** none


### MISIN Field Observer

[App page](https://appshunter.io/ios/app/misin-field-observer/id6770533769)

Contribute to invasive species detection by submitting field observation data. The app allows for offline data capture, including GPS, photos, and species identification. Your contributions help track threats and inform management decisions.

**Highlights:** Offline observation submission, Species catalog with photos and descriptions, Interactive species map, Personal report history, Invasive species identification quiz, Earn achievement badges

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TreeSnap free?

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

### Is MISIN Field Observer free?

MISIN Field Observer is free to download, with no in-app purchases.

### Which has better reviews, TreeSnap or MISIN Field Observer?

MISIN Field Observer is rated higher. TreeSnap averages 4.6 out of 5 from 19 ratings, while MISIN Field Observer averages 5.0 from 3 ratings.

### Do TreeSnap or MISIN Field Observer have ads?

Neither TreeSnap nor MISIN Field Observer shows ads.

### Which is updated more often, TreeSnap or MISIN Field Observer?

TreeSnap ships an update every 3 weeks, and MISIN Field Observer every 2 months. Most recently, TreeSnap was updated on October 7, 2026 and MISIN Field Observer on September 23, 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.*