TreeSnap vs Monarch Watch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TreeSnap
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.
- Identify and tag trees
- Contribute to scientific research
- Support forest health initiatives
- Locate trees for genetic studies
- Aid tree breeding programs
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Help Our Nation’s Trees! Invasive diseases and pests threaten the health of America’s forests. Scientists are working to understand what allows some individual trees to survive, but they need to find healthy, resilient trees in the forest to study. That’s where concerned foresters, landowners, and citizens (you!) can help. Tag trees you find in your community, on your property, or out in the wild using TreeSnap! Scientists will use the data you collect to locate trees for research projects like studying the genetic diversity of tree species and building better tree breeding programs.
Monarch Watch
Contribute to citizen science by tracking monarch butterflies. Log tagging, recovery, and calendar data with automatic image capture and field data import. Save data offline for later submission.
- Monarch tagging data submission
- Recovery and calendar data logging
- Automatic tag image capture
- Streamlined data entry
- Offline data saving
- Educational materials
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Participate in Monarch Watch community science projects and submit your monarch tagging, recovery and calendar data! Capture images of tags and automatically import codes for streamlined data entry. Easily import location, date, weather and other information then instantly submit data in the field. If no network connection is available, data may be saved and submitted later. All data from tagging, recovery, and calendar projects are saved on your device, giving you a record of what you have submitted. Detailed tagging instruction is provided as well as other educational materials and activities.
Screenshots
Verdict
TreeSnap and Monarch Watch are too close to call on the numbers: across 10 compared parameters — price, rating, review sentiment and ratings volume among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.6 for TreeSnap against 4.7 for Monarch Watch. Both are backed by a comparable volume of ratings — 19 and 7 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
TreeSnap ships an update every 3 weeks, Monarch Watch monthly. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.
| Parameter | TreeSnap | Monarch Watch |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (19 ratings) | 4.7 (7 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 19 — better | 7 |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 134 MB | 86 MB |
| Age rating | 4+ | 4+ |
| Developer | University of Tennessee | The University of Kansas |
Customer experience
TreeSnap
Monarch Watch
In-app purchases
TreeSnap
No in-app purchases
Monarch Watch
No in-app purchases
Questions
Is TreeSnap free?
Is Monarch Watch free?
Which has better reviews, TreeSnap or Monarch Watch?
Do TreeSnap or Monarch Watch have ads?
Which is updated more often, TreeSnap or Monarch Watch?
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