BioApp: Wetland Delineation2.2.1 - App Store

BioApp is a wetland and stream delineation tool designed for wetland professionals. Our app offers built-in guidance, automatic calculations, integrated photo collection, and a number of other time-saving features. Complete USACE forms and export them to fillable PDFs with the tap of a button. Capture photos and GPS point/polygon data with a single device. Collect data on- or offline with cloud storage options.

Every USACE region is supported, and our team is dedicated to continuously incorporating feedback to add new features and improve user experience.

Version History Wetland: Added "nearby species" highlighting to the vegetation lookups (customize in Settings > Customize Species Lists)
Fixed stale GNSS receiver positions sometimes being used when the receiver connection is closed.
Fixed edge cases causing duplicate photo uploads.
Bug fixes and UI adjustments. 2.2.1 6d ago Wetland: Implemented wetland boundary line syncing to the Data Portal.
Wetland: Removed the New/Deprecated hydric soil indicator hints. Deprecated soil indicators are now hidden unless applicable.
Wetland: Updated soil color picker to make page selection faster.
Project basedata can now be uploaded to the Data Portal and downloaded to the mobile app.
UI tweaks.
Bug fixes. 2.2.0 Sep 19 Wetland: Updated soil color picker interface.
A data form can now be restored from automatic backup files (Settings > Data Backups > Restore a Form).
Implemented a large variety of performance improvements.
Bug fixes. 2.1.1 Aug 18 Stream: Added Ohio EPA HHEI and QHEI data collection sections.
Added automatic, locally stored and versioned data backups.
Added the option to sign out when hitting account device limits.
Minor bug fixes. 2.1.0 Aug 4 Added manual photo recover options.
Improved handling of photo uploads, especially when internet connectivity or large numbers of photos would cause partial upload failures.
Bug fixes and performance improvements. 2.0.7 Jul 10 Added a guard to ensure that mapped lines have at least two points.
iOS: Fixed some photo upload issues after app updates.
Wetland: Substantial performance improvements to several data collection sections.
Bug fixes and performance improvements. 2.0.6 Jul 2 Bug fixes and performance improvements.
Fixed some instances of devices being duplicated. 2.0.5 Jun 27 Added one-way "upload only" data sync option.
Resolved some data sync photo handling edge cases.
Resolved data sync delay and upload error edge cases.
Better handling of establishing connection after starting the app in offline sessions.
Improved metadata preservation in photos.
Additional GNSS receiver attributes collected.
Minor UI updates. 2.0.4 Jun 25 The Stream data collection form is now available in BioApp.
Reworked device limit/slots to reduce lock-out issues.
Project data can now be more easily synced.
Improved offline session handling.
Switching GPS provider types no longer requires an app restart to display these results on the map.
Fixed some edge cases causing errors in receiver data parsing.
Fixed interior lines not appearing in geoJSON spatial data downloads.
Added additional error handling to shapefile spatial data downloads.
Fixed naming of "Problematic Hydrophytic Vegetation".
Wetland: Added a Notes field to each plant species recorded in the Wetland data forms.
Wetland: Fixed the ACE region sometimes displaying incorrectly when viewing a project's data forms.
Wetland: Fixed some indicator example photos not displaying.
Wetland: Fixed edge case in indicator F21.
iOS: Added the option to automatically save photos taken in BioApp to the Gallery.
Various minor bug fixes and improvements. 2.0.3 Jun 13 Updated Soils profile to allow entering multiple unique redox types/locations for each soil layer.
Small updates to soil profile section. 1.7.3 12/12/2025 Fixed outdated text for F21 hydric soil indicator in several regions.
Fixed edge cases in which the FAC-neutral calculation did not always trigger the wetland hydrology switch.
Fixes to NWI query.
Various dependency version updates. 1.7.2 11/02/2025 Improved readability for Classification Data selection dropdowns.
Organized and added additional links to the Links settings section.
Improved functionality for map data popups.
Various fixes and adjustments to the map tab.
Fixed offline tileset data loading.
Various UI adjustments. 1.7.1 05/16/2025 Added several optional classification field additions (HGM, Cowardin Classification, LLWW, etc.)
Updated PDF download options (Settings > Save, Sync, and Download Settings)
Fixed several spatial data download bugs and edge cases.
Bug fixes and performance improvements related to Eos receiver integration.
Various other bug fixes. 1.7.0 04/17/2025 (Beta) EOS receiver integration.
City/County lookup fixes.
Spatial data download fixes.
New default values: AGCP strata radii now default to 30\'. This can be overridden in the "Form Defaults" settings section. 1.6.4 02/09/2025 Added password visibility toggle.
Filter downloaded point/polyline spatial data by project.
More accurate and reliable USACE region/subregion lookups.
Fixed edge case causing soil indicator calculations to not always trigger.
App performance improvements. 1.5.5 07/17/2024 NWI data source connection fixes.
Fixed shapefile basedata selection issues.
Other minor bugfixes. 1.5.4 05/30/2024 Bug fixes and performance improvements. 1.5.3 03/07/2024 Additional validation hints added to data form fields that have not been completed.
Small optimizations and bug fixes. 1.5.2 02/24/2024 Fixed soil texture text dropdown autofill issues. 1.5.1 02/10/2024 Added direct Trimble receiver integration (found in the GPS and GNSS Settings section.)
Added the options to attach coordinates to photos or re-order them.
Fixed the FWS NWI classification query.
Large number of UI and theming updates. 1.5.0 02/05/2024 Added several new landform dropdown options and one new topographic relief option.
BioApp will now attempt to automatically pull potential surveyor names from the list of members in your organization.
Added the ability to search the list of projects.
Fixed an issue preventing uploaded forms from showing photos.
(Android only) Fixed autocomplete selection issues caused by Android 13 Accessibility interactions.
Other small bug fixes and improvements. 1.4.3 10/03/2023 Added a photo restoration tool to automate the process of re-attaching photos to data forms.
Fixed autocomplete dropdowns not being clickable when a scroll action is animating.
Fixed several soil indicator suggestion edge cases.
Improved handling of iOS camera/photo access permissions.
Several small bug fixes. 1.4.1 06/24/2023 Projects are now integrated into the app! You can still access data forms the typical way using the "All Data Forms" view option, but this allows for better organization of data and user permissions.
Added ability to set strata plot size defaults values.
Made the visual cue when forms have never been uploaded more obvious.
Fixed some edge case file access issues. 1.4.0 04/25/2023 Updated broken Michigan Flora links.
Updated NWI classification URL.
Clarified Spatial Data autofill results.
Minor resource PDF viewer updates.
Fixed Summary Comment saved remarks autofill issue.
Fixed bug causing the app to occasionally crash when camera permissions are not enabled.
Large number of dependency and platform versioning updates. 1.3.0 03/07/2023 Added additional form default options.
Updated Apple signing certificate. 1.2.1 08/28/2022