# Tree Risk Assessment vs ArboRefD

The clearest difference is in-app purchases: Tree Risk Assessment at none against ArboRefD's 8. ArboRefD's advantage is update cadence (every 4 weeks vs every 4 months) and device support (4 vs 2). On price, ads and iOS requirement there is nothing between them.

Both are free to download. ArboRefD sells 8 one-off in-app purchases. Tree Risk Assessment asks for nothing beyond the download.

Tree Risk Assessment ships an update every 4 months, ArboRefD every 4 weeks. The most recent releases landed on September 30, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Tree Risk Assessment | ArboRefD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tree-risk-assessment-level-1/id917769134/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 124 MB | 58 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Texas A&M Forest Service](https://appshunter.io/developer/775890018) | [Frank Rinn](https://appshunter.io/developer/1832196562) |

## What reviewers say

### Tree Risk Assessment

[App page](https://appshunter.io/ios/app/tree-risk-assessment-level-1/id917769134)

This app facilitates visual tree assessments, mapping trees with significant defects and identifying necessary treatments. It's ideal for use before and after storms, allowing users to store assessments locally, export them via email, or generate reports.

**Highlights:** Visual tree assessment, Map trees with defects, Identify treatment needs, Pre- and post-storm use, Local assessment storage, Email export, Report generation

**In-app purchases:** none


### ArboRefD

[App page](https://appshunter.io/ios/app/arborefd/id6749804200)

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Day | $0.99 | one-time |
| 1-Day-Pass | $0.99 | one-time |
| 1-Week-Pass | $4.99 | one-time |
| Full version (Week) | $5.99 | one-time |
| Full version (Month) | $11.99 | one-time |
| 1-Month-Pass | $12.99 | one-time |
| Full version (Year) | $49.99 | one-time |
| 1-Year-Pass | $59.99 | one-time |


## Frequently asked questions

### Is Tree Risk Assessment free?

Tree Risk Assessment is free to download, with no in-app purchases.

### Is ArboRefD free?

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

### Do Tree Risk Assessment or ArboRefD have ads?

Neither Tree Risk Assessment nor ArboRefD shows ads.

### Which is updated more often, Tree Risk Assessment or ArboRefD?

Tree Risk Assessment ships an update every 4 months, and ArboRefD every 4 weeks. Most recently, Tree Risk Assessment was updated on September 30, 2026 and ArboRefD on October 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*