X vs Wave Key
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
X
Monitor humidity and temperature with WiFi sensors that send data to this app. Receive automatic alerts when values exceed set thresholds. View historical data and sensor battery status.
- Real-time humidity and temperature monitoring
- Customizable threshold alerts
- Historical data viewing
- Sensor battery status display
- High accuracy measurements (+/- 2% RH)
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Our WiFi-sensors measure humidity and temperature and send the values to the linked X-SOR app. The X-SOR app automatically notifies you when the sensor values are outside the defined threshold values. The threshold values and the optimal values can be configured in the app for each sensor. In addition to temperature and relative humidity, the app also shows the history data and a the battery status of the sensor. The X-SOR sensors bring a new quality of measurement accuracy: Moisture accuracy% RH: +/- 2% Each sensor is individually calibrated and tested. Our high-quality sensors are masterfully manufactured and meet the highest demands on technology and design, Made in Switzerland.
Wave Key
Unlock doors using your smartphone, eliminating the need for physical keys or keycards. Easily manage access for multiple users and locations, and generate new credentials instantly via email.
- Keyless smartphone unlocking
- Access management for multiple locations
- Unlimited user scheduling
- Instant credential generation
- Email-based key distribution
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The future of keyless access. No more frustrating physical keys or keycards. Unlock doors with your iPhone or smartphone. Manage access to your buildings, small business locations, or offices with unlimited user scheduling privileges. It’s always easy to generate more credentials as needed — all you have to do is send an email and your mobile key is ready in your inbox.
Screenshots
Verdict
The clearest difference is rating: Wave Key at 5.0 against X's 1.0. Wave Key also leads on iOS requirement (15.0 vs 18.0). On price, ratings volume, update cadence and ads 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.
Wave Key holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 9, 2026 and June 5, 2026 respectively.
| Parameter | X | Wave Key |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 22 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | X-SOR AG | UniKey Technologies Inc. |
Customer experience
X
Wave Key
In-app purchases
X
No in-app purchases
Wave Key
No in-app purchases
