Comparison

OpenBioMaps Forms vs Voltcraft VC

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

Head to head
About

OpenBioMaps Forms

Features
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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,

About

Voltcraft VC

Features
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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

OpenBioMaps Forms4 screens
Voltcraft VC4 screens

Verdict

The call

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

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

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.

Scorecard2 real differences · 4 level
OpenBioMaps Forms versus Voltcraft VC: the parameters behind the verdict, then further details
ParameterOpenBioMaps FormsVoltcraft VC
PriceFreeFree
Update frequencyWeekly — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.011.0 — better
Further details — not scored
Size45 MB13 MB
Age rating4+17+
DeveloperECOLLABCEI Conrad Electronic International (HK) Limited

In-app purchases

None

OpenBioMaps Forms

No in-app purchases

None

Voltcraft VC

No in-app purchases

Questions

Is OpenBioMaps Forms free?
OpenBioMaps Forms is free to download, with no in-app purchases.
Is Voltcraft VC free?
Voltcraft VC is free to download, with no in-app purchases.
Do OpenBioMaps Forms or Voltcraft VC have ads?
Neither OpenBioMaps Forms nor Voltcraft VC shows ads.
Which is updated more often, OpenBioMaps Forms or Voltcraft VC?
OpenBioMaps Forms ships an update weekly, and Voltcraft VC every 2 months. Most recently, OpenBioMaps Forms was updated on September 12, 2026 and Voltcraft VC on February 23, 2026.

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