VMC CONNECT vs Brain training calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VMC CONNECT
Monitor and control CO2 extract vents from your installation. Pair vents via Bluetooth, identify them with a test button, and rename them. Track humidity, CO2 levels, and airflow rate for each vent.
- Bluetooth pairing of CO2 extract vents
- Vent identification and renaming
- Monitor humidity and CO2 levels
- Check airflow rate
- Override mode for maximum airflow
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Intuitive app for monitoring CO² extract vents : Pair different CO² extract vents from your installation via bluetooth. Identify the vents using the « Test » button and optionally rename them. Control various parameters : By selecting each vent, you can monitor humidity, CO² levels in the installed room, and also check the airflow rate. Vent management : An « Override Mode » button allows you to set the vent to its maximum airflow rate for a short period of time.
Brain training calculator
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Every time the user presses a number key, all number keys disappear and their arrangement changes. Entering numbers can be hectic and requires concentration and patience. Users can exercise their brains and keep themselves busy. ＜モードオン・オフ＞ 隠すモードボタンを押す。 ※普通の電卓に戻る場合は、ボタンを再度押す。
Screenshots
Verdict
The clearest difference is ads: VMC CONNECT at none against Brain training calculator's shown. VMC CONNECT also leads on iOS requirement (13.0 vs 15.8.3). Brain training calculator's advantage is update cadence (every 2 weeks vs every 6 months). On price, 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.
VMC CONNECT ships an update every 6 months, Brain training calculator every 2 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | VMC CONNECT | Brain training calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.8.3 |
| Further details — not scored | ||
| Size | 7 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | OPENIUM | Hideaki Uchikoshi |
In-app purchases
VMC CONNECT
No in-app purchases
Brain training calculator
No in-app purchases
Questions
Is VMC CONNECT free?
Is Brain training calculator free?
Do VMC CONNECT or Brain training calculator have ads?
Which is updated more often, VMC CONNECT or Brain training calculator?
Other comparisons
