# ForestIN - Forest INventory — Forest Inventory & Carbon

> Forest Inventory & Carbon (iPhone/iPad app by Carlos Martin-Cortes.)

- Source: https://appshunter.io/ios/app/forestin-forest-inventory/id6784680827 (this page in markdown: same URL + `.md`)
- Developer: [Carlos Martin-Cortes](https://appshunter.io/developer/6784680829)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 37 MB
- Languages: American English
- Released: 2026-07-07
- Data updated: 2026-07-23
- User reviews in markdown: https://appshunter.io/ios/app/forestin-forest-inventory/id6784680827/reviews.md

## What is ForestIN?

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.


## Version history (last 3 releases)

### 1.0.2 — 2026-07-19

• New in-app user manual (8 languages), also downloadable as a PDF.

### 1.0.1 — 2026-07-12

Troubleshooting various errors

### 1.0.0 — 2026-07-07

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-23.*