# Forest Watcher vs NRDS Mobile Mapping ('Āina)

The clearest difference is device support: NRDS Mobile Mapping ('Āina) at 3 against Forest Watcher's 1. NRDS Mobile Mapping ('Āina) also leads on iOS requirement (13.4 vs 16.0). On price, rating, ratings volume and update cadence there is nothing between them.

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 — 5.0 for Forest Watcher against 4.9 for NRDS Mobile Mapping ('Āina). Both are backed by a comparable volume of ratings — 8 and 7 respectively.

Forest Watcher ships an update every 3 months, NRDS Mobile Mapping ('Āina) every 2 months. The most recent releases landed on September 17, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Forest Watcher | NRDS Mobile Mapping ('Āina) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/forest-watcher/id1277787116/reviews)** | [4.9 (7 ratings)](https://appshunter.io/ios/app/nrds-mobile-mapping-aina/id1359548145/reviews) |
| Number of ratings | **8** | 7 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 79 MB | 44 MB |
| Requires iOS | 16.0 | **13.4** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [World Resources Institute](https://appshunter.io/developer/351884757) | [Natural Resource Data Solutions Inc.](https://appshunter.io/developer/1217760150) |

## What reviewers say

### Forest Watcher

[App page](https://appshunter.io/ios/app/forest-watcher/id1277787116)

Access global forest change data and alerts offline. Identify areas for investigation, collect field evidence with customizable forms, and make informed conservation decisions. Share data and manage teams for effective forest monitoring.

**Highlights:** Offline forest change data access, Designate areas of interest, Collect field data with forms, Overlay contextual layers, Route tracking for investigations, Share alerts and data

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

**In-app purchases:** none


### NRDS Mobile Mapping ('Āina)

[App page](https://appshunter.io/ios/app/nrds-mobile-mapping-aina/id1359548145)

This mapping and data collection tool allows users to geotag photos, record tracks, save waypoints, and draw various shapes. It functions both online and offline, making it ideal for fieldwork in conservation, agriculture, surveying, and hiking.

**Highlights:** Geotag photos, Record tracks, Save waypoints, Draw polygons, Offline functionality, Data synchronization, Report generation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Forest Watcher free?

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

### Is NRDS Mobile Mapping ('Āina) free?

NRDS Mobile Mapping ('Āina) is free to download, with no in-app purchases.

### Which has better reviews, Forest Watcher or NRDS Mobile Mapping ('Āina)?

Forest Watcher is rated higher. Forest Watcher averages 5.0 out of 5 from 8 ratings, while NRDS Mobile Mapping ('Āina) averages 4.9 from 7 ratings.

### Do Forest Watcher or NRDS Mobile Mapping ('Āina) have ads?

Neither Forest Watcher nor NRDS Mobile Mapping ('Āina) shows ads.

### Which is updated more often, Forest Watcher or NRDS Mobile Mapping ('Āina)?

Forest Watcher ships an update every 3 months, and NRDS Mobile Mapping ('Āina) every 2 months. Most recently, Forest Watcher was updated on September 17, 2026 and NRDS Mobile Mapping ('Āina) on June 1, 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.*