Diameter Finder vs VC controller
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Diameter Finder
This utility app provides a straightforward way to calculate circle properties. Simply input one known value (radius, diameter, circumference, or area) to instantly get the results for the others. It's designed for quick and no-fuss calculations.
- Calculate radius
- Calculate diameter
- Calculate circumference
- Calculate area
- Input any single value
- Quick results
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Diameter Finder - Circle Calculator. Do you need a quick and easy to use circle calculator? No problem, here it is. Enter one value to get the result in no time: Radius Diameter Circumference Area No fuss calculator. Does what it says on the tin.
VC controller
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VCA Controller (VivusCardio AED Trainer Controller) is a dedicated remote control app developed by Innosonian for the AED Trainer. It enables instructors to remotely control the AED Trainer easily and quickly, providing a realistic training environment that simulates real-life emergency situations. - Key Features - Scenario-Based Training - Practice using a variety of training scenarios that reflect real emergency situations - Real-Time Event Control - Set and control unexpected emergency events remotely during training - Multilingual Voice Guidance & Volume Control - Select the appropriate language and adjust voice prompt volume to suit the training environment - Multi-Device AED Trainer Connection - Connect multiple AED Trainers simultaneously for efficient group training - Recommended For - Instructors and institutions conducting AED training - Educators seeking scenario-based emergency training - Instructors and training centers using Brayden CPR manikins
Screenshots
Verdict
The clearest difference is iOS requirement: Diameter Finder at 12.1 against VC controller's 15.6. On price, update cadence, ads and in-app purchases 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.
Diameter Finder ships an update every 5 months, VC controller every 4 months. The most recent releases landed on September 19, 2026 and September 10, 2026 respectively.
| Parameter | Diameter Finder | VC controller |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 13 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Krzysztof Gwiazda | Innosonian Inc. |
In-app purchases
Diameter Finder
No in-app purchases
VC controller
No in-app purchases
Questions
Is Diameter Finder free?
Is VC controller free?
Do Diameter Finder or VC controller have ads?
Which is updated more often, Diameter Finder or VC controller?
Other comparisons
