Vespafinder
Productivity
Free · Designed for iPad. Not verified for macOS.
VespaFinder helps in the important task of locating and tracking invasive species equipped with unique tags. Designed to support environmental monitoring and control, the app scans for hornet tags within range and displays them in a simple, easy-to-use list.
Whether you're part of a wildlife management team or an enthusiast looking to contribute to the fight against invasive species, this app allows you to detect tagged hornets in your area, making it easier to help with their management and study.
more • Predictions and nests are now saved when you go back, as long as you have given them a name. No more losing one by leaving the form.
• Online Sync now shows three separate lines: the server connection, when your tag data was last sent, and when data last arrived from another device.
• Sharing is confirmed by the server instead of assumed, and tag data that does not get through is resent until it does.
• Minor fixes and improvements.
6.4.3 21 Aug
• A running prediction now shows its time and distance right in the list, with Stop and Reset in the row. After a reset you can start it again from there too, without reopening the form.
• Editing a prediction or nest now saves when you go back, instead of only when you use the save action.
• The save action now takes you to the item on the map, while back returns you to the list you came from.
• Trailing icons only move to their own row at larger text sizes, so lists stay compact at normal sizes.
• Minor fixes and improvements.
6.4.2 17 Aug
• The app now follows your system font size properly. Text and icons grow together, and screens reflow instead of clipping.
• Tag details, prediction and nest cards, and the offline maps screen rearrange at larger text sizes so nothing is cut off.
• The map's buttons now wear the same dark glass as its menus, and the signal view is translucent.
• Fixed the confirm buttons hiding behind the Tags bar when changing a prediction's angle.
• Minor fixes and improvements.
6.4.1 14 Aug
• The map now fills the whole screen, with your tags on a panel you drag up from the bottom.
• Drag the Tags bar to see more or less of the list, or tap it to step through.
• The tag list and search results are translucent, so the map stays visible behind them.
6.4.0 12 Aug
• The map's menus and popups are now translucent, so less of the map is hidden behind them.
• The map's buttons no longer run off the edge of the screen in longer languages.
• The legend, sync status and compass have moved to the top corner, leaving more room for the map.
• Fixed the stealth button still appearing after stealth mode was turned off in settings.
• Fixed circles still blocking taps on the map after circle drawing was turned off.
• Minor fixes and improvements.
6.3.8 10 Aug
• You can now hide individual nests and predictions from the map, and show them again from the list.
• Long-press a nest or prediction on the map to hide it.
• Minor UI colour changes to match the app's brand colours.
• Minor fixes and improvements.
6.3.7 7 Aug
• Reporting to observation.org is now available in every language, not just Dutch.
• Photos are no longer uploaded again every time you share the same nest.
• Photo uploads now retry automatically, and a nest is no longer shared with some of its photos missing.
• Minor fixes and improvements.
6.3.6 6 Aug
• Sharing a nest now lets you choose where it goes: report it to the Meldpunt or Le Frelon, or send a link to other people. Reports are no longer sent automatically when you save a nest.
• You now get a confirmation when a report is submitted, and a clear message when details are missing.
• Fixed reports that could be silently dropped instead of reaching the Meldpunt.
• Your name, email and phone are now checked as you type them in Settings.
• Minor fixes and improvements.
6.3.5 3 Aug
Fixes for sharing nests with photos:
• Sharing the same nest again no longer re-uploads its photos, so links stay stable and photos don't pile up when you open your own link.
• A photo whose upload failed on a poor connection is retried the next time you share, instead of being left out of the link.
• The "uploading photo" message now only appears when there is actually something to upload.
• More reliable syncing over a flaky mobile connection.
• Minor fixes and improvements.
6.3.4 30 Jul
More detail on your predictions:
• Record the hornet's weight and the outside temperature when you add or edit a prediction.
• Heavy hornets are now flagged as "probably queen" in the list, so standout catches are easy to spot.
• Weight and temperature are included when you share a prediction.
• Minor fixes and improvements.
6.3.3 24 Jul
Download maps for offline use:
• Save any city, region or country and use the map with no connection, on both the street and satellite views.
• Downloaded areas kick in automatically wherever you lose signal, no switching needed.
• Manage your saved maps and free up space right from Settings.
6.3.2 22 Jul
Smoother, more reliable maps:
• The map now remembers areas you've already viewed, so they load instantly, even on a weak connection.
• Fixed a rare issue where parts of the map could stay blank until you zoomed out and back in.
• Fixed a brief flicker of the wrong map when switching between satellite and street view.
6.3.1 20 Jul
• New: you can now share a location from Maps (or any app) directly
into VespaFinder to create a prediction or nest. Just tap Share,
choose VespaFinder, and hit Import.
• After saving a shared location, the map jumps straight to it.
• Added support for the newest Apple Maps links, so more shared
locations are recognized automatically.
• Improved compatibility with the latest version of iOS.
6.3.0 15 Jul
• Fixed: nest photos could disappear from saved nests. Photos are now stored permanently and are also saved to your device's photo gallery.
• Opening the same shared nest or prediction link more than once no longer creates duplicate entries.
• Sharing links no longer stack multiple list screens on top of each other.
• Nest and prediction overviews now show the save date.
• The nest and prediction edit screens now show when an item was created and last modified.
• Localization and layout polish.
6.2.20 10 Jul
• Editing a prediction or nest now recenters the map on it.
• Easier to tap nests on the map.
6.2.19 6 Jul
• Add multiple photos to a nest — snap or pick several at once, swipe through them, and remove any you don't want.
• Share nests with all their photos.
• New: share nest reports with Meldpunt Aziatische Hoornaar (for Dutch users).
• Fixed an issue where confirming a prediction's search angle could nudge it off target.
• New predictions and nests now center on the map automatically when you save them.
• Fixed a crash that could occur when pinch-zooming the map.
• Various stability and performance improvements.
6.2.18 4 Jul
Improved tracking reliability over long sessions.
6.2.16 17 Jun
- Receiver now displays signal strength and temperature.
- Temperature added to marker info.
- Drag to rotate search triangles in real time with the new Change Angle mode.
- Copy Location now always gives a Google Maps link, everywhere.
6.2.15 15 Jun
Fixed map popups (edit, share, and create menus) appearing off-screen when opened near the edge of the display. They now stay fully visible and centered.
Fixed an issue where a tag that was switched off or out of range could still appear to update its last-seen time, making it look active when it wasn't. The last-seen time now only updates on a genuinely new signal, so a stale tag stays clearly stale.
6.2.14 5 Jun
Minor fixes.
6.2.13 1 Jun
NEW
• Hornet tag temperature shown in the device list
• Alert when a hornet you'd lost reappears via another user
• Long-range Bluetooth scanning
• Shared compass heading for better nest triangulation
• Optional infinite marker tracking
• Direct nest reporting to LeFrelon
• Many new European language translations
IMPROVEMENTS
• Greatly improved compass accuracy on Android
6.2.12 28 May
- Horizontal view
- New and improved signal strength indicator
6.0.1 10 Jan
We've improved upon the observation.org integration. Photos you make with Vespafinder now get saved to the gallery.
5.8.3 09/12/2025
We've improved upon the observation.org integration
5.8.1 08/12/2025
- observation.org integration
- search functionality
5.8.0 06/12/2025
• Predictions and nests are now saved when you go back, as long as you have given them a name. No more losing one by leaving the form.
• Online Sync now shows three separate lines: the server connection, when your tag data was last sent, and when data last arrived from another device.
• Sharing is confirmed by the server instead of assumed, and tag data that does not get through is resent until it does.
• Minor fixes and improvements.
more Version 6.4.3 21 Aug
Data Not Linked to You The following data may be collected but it is not linked to your identity: