TreeSnap vs PA AIS Field Guide
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TreeSnap
Contribute to vital forest research by identifying and tagging healthy trees. Your submissions help scientists study genetic diversity and develop better tree breeding programs to combat invasive diseases and pests.
- Identify and tag trees
- Contribute to scientific research
- Help combat tree diseases
- Study genetic diversity
- Support 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.
PA AIS Field Guide
Identify, report, and catalog non-native aquatic animal and plant species in Pennsylvania. This educational tool helps users contribute to conservation efforts by documenting invasive species.
- Identify aquatic invasive species
- Report sightings
- Catalog species
- Educational resource
- Contribute to conservation
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The Pennsylvania Aquatic Invasive Species app is used to identify, report, and catalog aquatic species of animal & plant life not native to the region.
Screenshots
Verdict
The clearest difference is rating: PA AIS Field Guide at 5.0 against TreeSnap's 4.6. PA AIS Field Guide also leads on iOS requirement (12.0 vs 15.1). TreeSnap's advantage is update cadence (monthly vs every 5 months) and ratings volume (19 vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.
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.
PA AIS Field Guide 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 monthly, PA AIS Field Guide every 5 months. The most recent releases landed on November 11, 2026 and November 2, 2026 respectively.
| Parameter | TreeSnap | PA AIS Field Guide |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (19 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 19 — better | 3 |
| Update frequency | Monthly — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 12.0 — better |
| Further details — not scored | ||
| Size | 135 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | University of Tennessee | Skyward App Company |
Customer experience
TreeSnap
PA AIS Field Guide
In-app purchases
TreeSnap
No in-app purchases
PA AIS Field Guide
No in-app purchases
Questions
Is TreeSnap free?
Is PA AIS Field Guide free?
Which has better reviews, TreeSnap or PA AIS Field Guide?
Do TreeSnap or PA AIS Field Guide have ads?
Which is updated more often, TreeSnap or PA AIS Field Guide?
Other comparisons
