NAHPU
Natural history field catalog
Free
Field cataloging for natural history collections, now with ichthyology support. Track lots and individuals, auto-number tags, and log conductivity and dissolved oxygen.
NAHPU is a free, open-source digital field catalog for natural history research. It helps field researchers, museum staff, students, and collection teams keep specimens, sites, collection events, tissues, media, and notes connected within a single project.
Built for real field conditions, NAHPU’s core cataloging workflow works offline and requires no account. Your records remain on your device unless you choose to export, back up, or share them.
What you can do
- Organize projects, team members, and taxon registries
- Catalog mammals, birds, herpetofauna, and arthropods with group-specific fields
- Record sites, coordinates, habitats, collecting events, effort, and environmental context
- Track specimens, preparations, parts, tissue samples, measurements, and associated data
- Capture and organize photos, audio, video, and field notes
- Exchange selected records and settings with QR codes
- Review collection statistics during fieldwork
- Export records as CSV, TSV, Excel, or JSON
- Create Darwin Core Archives, Darwin Core Data Packages, and NAHPU Data Packages
- Transfer projects, create restorable backups, and design PDF labels and documents
From field capture to curation
NAHPU keeps related records together and reduces repeated entry across field and museum workflows. Its open-standard exports, including Darwin Core, help teams move structured records into analysis, collection-management, and biodiversity publishing systems.
Private by design
NAHPU does not require an account. Core data is stored on your device, and you decide when to export or share it. Some optional map views require an internet connection.
Responsible use
NAHPU is a cataloging tool. You are responsible for following applicable permits, institutional protocols, ethical standards, and local laws when collecting or handling specimens.
Note that the records shown in app screenshots are for illustrative purposes only and do not reflect real field data.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
NAHPU 1.1.0 adds support for fish collections.
NEW: ICHTHYOLOGY CATALOG FORMAT (BETA)
• Catalog a fish as a single individual, with standard length, total length, and weight, or as a lot, with the total count and min/max ranges.
• Lot ranges can update automatically from the individuals you measure, and the form shows their mean and standard deviation.
• Record individuals within a lot, each with an individual or tag ID, length, weight, sex, life stage, and remarks.
• Link specimen parts and parasites to the individual they came from.
• Auto-number tag IDs with a prefix, a zero-padded number, and a suffix (Settings › Specimen). A tag you type yourself overrides the number without using it up.
IMPROVEMENTS
• Tissue IDs can now have a suffix and keep the zero padding of their number, so M0042-T is followed by M0043-T. Existing tissue counters carry over.
• Collecting events gain conductivity (µS/cm) and dissolved oxygen saturation (%) in environmental data. Environmental-field settings now show each field's unit.
• Project transfer and record exchange files now carry fish records and individuals.
To share projects that include fish records, update NAHPU on every device to 1.1.0.
The developer, Heru Handika, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Heru Handika
- Size
- 127.8 MB
- Category
- Education
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPad
Requires iPadOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 12.4 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Copyright
- © the NAHPU Team