MusTerra vs ForestIN
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
MusTerra
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Our app allows you to measure tree diameter and height, capture their location, and visualize them on a map for tracking and analysis. Designed for foresters, researchers, and nature enthusiasts, it makes tree measurement and data management effortless. Features & Functionality: Measure Tree Diameter & Height β Use your phoneβs camera for accurate measurements. Find & Store Location β Automatically record GPS coordinates of each tree. Visualize on Map β View and manage measured trees on an interactive map. Store & Organize Data β Save measurements with notes for future reference. Export Data β Easily share or export tree data for reports or research. Track and analyze trees with ease! Download now!
ForestIN
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ForestIN is a free app for digitizing forest inventory data collection from your phone: plots, trees, species, and carbon calculation, all in a single workflow, with or without an internet connection. Built together with forest researchers, ForestIN replaces the field notebook and the process of typing handwritten data into a computer afterwards. Record it once, in the field, and get the report instantly. FIELD DATA COLLECTION - Create plots with full metadata: team, timestamps, slope, silvicultural system, stand development stage, canopy cover, and species composition. - Record individual trees: DBH, height, crown base height, first live/dead branch height, straightness, curvature, lean, damage, and vitality. - Define the plot area as circular, rectangular, or polygon-based, or import boundaries from an external file. - Add photographs to plots and trees for complete documentation. ACCURATE GEOREFERENCING - Use your phone's built-in GNSS receiver, or connect an external receiver via Bluetooth for higher accuracy. - Check real-time positioning precision while you work. - View plots and trees on an interactive map. INSTANT REPORTS, NO POST-PROCESSING - Generate inventory and carbon stock reports directly within the app, based on species-specific allometric equations. - Manage your own allometric equations, or your organization's, adapted to each region. - Export as PDF for reports, or as a ZIP archive with structured CSV files and photographs for external analysis. WORKS OFFLINE - All data is stored locally on the device and remains available without coverage. - Once connectivity is restored, ForestIN automatically syncs with the cloud (Supabase), enabling team collaboration and multi-device access. - Import historical records using a standardized CSV template, with automatic detection and skipping of duplicate entries. BUILT FOR REAL FIELDWORK - Sequential forms and predefined selection lists reduce data-entry time and errors. - Automatic validation prevents inconsistent or out-of-range values. - Available in English, Spanish, Portuguese, Italian, Finnish, Catalan and German. - Choose your preferred unit system and decimal separator. PROVEN RESULTS In a comparative study with 14 participants, total recording time with ForestIN was 59.2% lower than with the traditional paper-based method, by completely eliminating the subsequent data transcription step. Ideal for forestry technicians, researchers, forest managers, and students who need reliable, traceable, ready-to-use field data, without depending on third-party platforms or external licenses. ForestIN is free to use, and has been developed and tested across contrasting forest environments, making it adaptable to a wide range of ecological and operational contexts.
Screenshots
Verdict
The clearest difference is device support: ForestIN at 3 against MusTerra's 1. ForestIN also leads on iOS requirement (13.0 vs 16.0). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
MusTerra ships an update weekly, ForestIN every 6 days. The most recent releases landed on October 9, 2026 and October 19, 2026 respectively.
| Parameter | MusTerra | ForestIN |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Every 6 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, iPod β better |
| Requires iOS | 16.0 | 13.0 β better |
| Further details β not scored | ||
| Size | 138 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | MUST GmbH | Carlos Martin-Cortes |
In-app purchases
MusTerra
No in-app purchases
ForestIN
No in-app purchases






