VSensors vs KeyGuardian
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VSensors
This application connects to multiple Bluetooth sensors to monitor environmental conditions like illumination, temperature, humidity, and noise. It displays data in maximum/minimum modes, line charts, and tables, with export options available. Requires Vevor Bluetooth Sensor Series and iOS 9.0 or later.
- Connects multiple Bluetooth sensors simultaneously
- Monitors illumination, temperature, humidity, and noise
- Maximum and minimum display modes
- Line chart and data table views
- Data export in various formats
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Application features: - Multiple Bluetooth sensors, such as illumination, temperature and humidity, noise, etc., can be automatically connected at the same time - Includes maximum minimum display mode - Includes line chart view - Includes view of the data table - Data can be exported in a variety of formats Preconditions for using: - Use the Vevor Bluetooth Sensor Series - IOS 9.0 or an updated version is required to support Bluetooth 4.0 and above devices
KeyGuardian
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Key Guardian helps you keep important login details and private key information organized in one simple, locked place. Store key names, usernames, and passwords securely on your device, protected behind device authentication. Quickly search your saved keys, view details when needed, and keep your information private. With import and export support, you can create a JSON backup of your keys and restore or merge data when needed. When duplicate key names are found during import, Key Guardian lets you choose whether to merge, replace, or keep your existing entries. Features Save key names, usernames, and passwords Protect access with device authentication Search saved keys Export your keys to a JSON backup Import keys from JSON Choose how duplicate keys are handled View created and modified dates Simple, focused, private-by-design interface Privacy Key Guardian is designed for local, private storage. Your saved key data is encrypted on device and protected by device authentication.
Screenshots
Verdict
The clearest difference is update cadence: VSensors at every 7 months against KeyGuardian's every 21 months. VSensors also leads on device support (3 vs 1) and iOS requirement (12.0 vs 17.0). On price, 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.
VSensors ships an update every 7 months, KeyGuardian every 21 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.
| Parameter | VSensors | KeyGuardian |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (6 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 7 months — better | Every 21 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 43 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | ZHANGZHOU EASTERN INTELLIGENT METER CO., LTD. | Sergii Sinkevych |
In-app purchases
VSensors
No in-app purchases
KeyGuardian
No in-app purchases









