Comparison

Working Trees App vs ForestIN

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Working Trees App

This app helps users quickly measure trees to estimate carbon sequestration. It manages sample plots, planting campaigns, and tree data collection, even offline. Features include a visual interface for measurements, data management, and a map tool for planting locations.

Highlights
  • Estimate carbon sequestration in woody biomass
  • Manage sample plots and tree data
  • Record tree diameter and height
  • Geolocation and photo capture
  • Offline data collection
  • Map tool for planting locations
Features
Read full description

Working Trees App provides a way to simply and quickly acquire the measurements needed to estimate carbon sequestration in woody biomass. Measure the parameters needed to estimate the carbon stored in trees. Manage sample plots, tree planting campaigns, and tree data collection efforts. Use structure-from-motion analysis to record tree diameter and tree height, geolocation, photos, and more. Don’t have cellular service? No problem - your data will get uploaded once you’re back in range. Features include: - Visual interface to measure trees - Data management for sample plots - Map tool to record tree planting locations

About

ForestIN

Features
Read full description

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

Working Trees App2 screens
ForestIN3 screens

Verdict

The call

The clearest difference is update cadence: ForestIN at every 6 days against Working Trees App's monthly. ForestIN also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Working Trees App ships an update monthly, ForestIN every 6 days. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.

Scorecard2 real differences · 7 level
Working Trees App versus ForestIN: the parameters behind the verdict, then further details
ParameterWorking Trees AppForestIN
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyMonthlyEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.013.0 — better
Further details — not scored
Size78 MB37 MB
Age rating4+4+
DeveloperWORKING TREES, INC.Carlos Martin-Cortes

In-app purchases

None

Working Trees App

No in-app purchases

None

ForestIN

No in-app purchases

Questions

Is Working Trees App free?
Working Trees App is free to download, with no in-app purchases.
Is ForestIN free?
ForestIN is free to download, with no in-app purchases.
Do Working Trees App or ForestIN have ads?
Neither Working Trees App nor ForestIN shows ads.
Which is updated more often, Working Trees App or ForestIN?
Working Trees App ships an update monthly, and ForestIN every 6 days. Most recently, Working Trees App was updated on September 8, 2026 and ForestIN on September 15, 2026.

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