OpenBioMaps Forms vs Voltcraft VC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpenBioMaps Forms
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Use OpenBioMaps to record monitoring data for living organisms and habitats. In addition to basic data (what, when, where and in what quantities), the OpenBioMaps app allows you to compile and use any data collection forms. To use the application, you must sign up on a selected OpenBioMaps server, which usually requires an invitation! You can upload the monitoring data collected offline to the selected OBM database server. Once connected to a server, the app downloads the background data needed to work offline. Key features: - Use of custom monitoring forms for different monitoring programs. - Offline use: recording observation data without an internet connection. - Collection of spatial data: recording of the location of living organisms and habitats using maps or recording of location data. - Record location in the background to create a tracklog to measure search effort or record the shape of habitats. - Upload monitoring data and tracklogs to the destination server if an Internet connection is available. - Map display of tracklogs and recorded data. - Support for the use of custom language versions. - Fast data entry thanks to many auxiliary functions, such as autocompletion of lists; recent searches; pre-filled items; and customizable form field history,
Voltcraft VC
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Compatible with Voltcraft's VC-41 Series socket tester, the App allows the user to: • Stream data to iPhone or iPad internal memory, with real-time remote viewing • Adjust sample rate • Export data in Excel® format • Share data files directly from application • Take snapshots of the measurement area with the connected iPhone or iPad camera • Store over 15k readings with the VC-41 wireless datalogging module, for download to Phone or Tablet, with programmable datalogger file size
Screenshots
Verdict
The clearest difference is update cadence: OpenBioMaps Forms at weekly against Voltcraft VC's every 2 months. Voltcraft VC's advantage is iOS requirement (11.0 vs 17.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
OpenBioMaps Forms ships an update weekly, Voltcraft VC every 2 months. The most recent releases landed on September 12, 2026 and February 23, 2026 respectively.
| Parameter | OpenBioMaps Forms | Voltcraft VC |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 45 MB | 13 MB |
| Age rating | 4+ | 17+ |
| Developer | ECOLLAB | CEI Conrad Electronic International (HK) Limited |
In-app purchases
OpenBioMaps Forms
No in-app purchases
Voltcraft VC
No in-app purchases
Questions
Is OpenBioMaps Forms free?
Is Voltcraft VC free?
Do OpenBioMaps Forms or Voltcraft VC have ads?
Which is updated more often, OpenBioMaps Forms or Voltcraft VC?
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