Sphera Duo vs OET
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sphera Duo
This app allows you to monitor your baby remotely using an HD camera with pan and tilt features. It offers two-way talk, lullabies, and alerts for temperature and low battery. The companion monitor features a touch screen and long battery life.
- HD 720P camera
- Motorized Pan & Tilt
- Two-way talk
- Voice-operated switch (VOX)
- Room temperature alerts
- Push notifications
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Working with HD camera. FEATURES ------------------------------------------ CAMERA HD 720P Motorized Pan & Tilt WiFi connectivity Automatic night vision activation 3 comforting lullabies MONITOR 4.3 inch touch screen Digital zoom 10 hours battery life in Voice-operated switch (VOX) mode Two-way talk Sound level indicator Volume adjustment by hard key button Voice-operated switch (VOX) ALERT Room temperature display and alert Low battery Out of range APP Push notification (Voice and Temperature) Video recording (Max. 3 mins) Image snapshot Remote Pan & Tilt Talk back
OET
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The OET app is a security technology developed by SCRIBOS GmbH to verify the authenticity of original products. The QR code on your product contains an uncopyable security feature analyzed by our app. Simply scan the QR code on your product's security label to instantly verify its authenticity — and report any counterfeits you find. We work for a world where only good wins.
Screenshots
Verdict
The clearest difference is iOS requirement: Sphera Duo at 9.0 against OET's 14.0. 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.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | Sphera Duo | OET |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 16.7% of reviews | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 9 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | TRANWO TECHNOLOGY CORP. | scribos GmbH |
In-app purchases
Sphera Duo
No in-app purchases
OET
No in-app purchases
