CarBoss vs Kio Proximity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CarBoss
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CarBoss-2 is a smart car lock app。
Kio Proximity
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The Kio Proximity app provides the capability to locate nearby Kontakt.io IoT devices within Bluetooth range of your real-time location. The app determines the proximity of a Kontakt.io device by its RSSI signal strength to your current real-time location, so the closer or farther you move from a device the app will let you know.
Screenshots
Verdict
The clearest difference is iOS requirement: CarBoss at 8.0 against Kio Proximity's 15.3. 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.
CarBoss ships an update every 4 months, Kio Proximity every 7 months. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.
| Parameter | CarBoss | Kio Proximity |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 8.0 — better | 15.3 |
| Further details — not scored | ||
| Size | 7 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | 凤军 程 | Kontakt Sp. z o.o. |
In-app purchases
CarBoss
No in-app purchases
Kio Proximity
No in-app purchases
