AWARE Client V3 vs Centinela
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
AWARE Client V3
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AWARE Client V3 is a comprehensive mobile sensing platform designed for academic and behavioral research studies. It enables researchers to passively collect contextual sensor data from participants' iOS devices, if configured, and synchronize it to a secure research server. SENSORS INCLUDED IN THIS RELEASE: Motion & Activity โข Accelerometer โ raw acceleration along 3 axes โข Gyroscope โ rotational velocity โข Gravity โ gravity vector โข Magnetometer โ ambient magnetic field โข Linear Accelerometer โ acceleration excluding gravity โข Rotation โ full device orientation โข Barometer โ atmospheric pressure and relative altitude โข Pedometer โ step count, distance, and floors climbed โข Activity Recognition โ walking, running, cycling, driving, or stationary โข Significant Motion โ transitions between significant movement states โข AirPods Motion โ supported AirPods head motion and orientation data Device & Connectivity โข Battery โ charge level and charging state โข Screen โ screen on/off/locked/unlocked events โข Device โ model, OS version, and hardware identifiers โข Processor โ CPU and memory usage โข Network โ internet availability and traffic counters โข Bluetooth โ nearby Bluetooth Low Energy scan results โข Timezone โ current timezone and changes โข HealthKit โ selected Apple Health records such as heart rate, sleep, activity, workouts, ECG, activity summaries, and audiograms โข Apple Watch โ supported Apple Watch sensor collection when paired with the iOS app โข Music โ playback state and now-playing metadata from the system music player โข Photos โ photo library asset metadata and optional on-device image recognition labels โข Keyboard โ keyboard usage event metadata through the bundled custom keyboard extension โข App Logger โ foreground/background lifecycle events Environment & Location โข Locations โ GPS coordinates, visited places, and compass heading โข Wi-Fi โ nearby access point scan results โข iBeacon โ nearby configured iBeacon ranging and region events โข Calls โ call event metadata (no audio content is recorded) โข OpenWeather โ current weather conditions via OpenWeather API โข Notification โ push notification and silent command events โข Shortcuts โ Apple Shortcuts personal automation triggers HOW IT WORKS: 1. Scan the QR code provided by your study administrator 2. Select the sensors relevant to your study 3. Tap the main switch to start data collection 4. Data is stored locally on-device and uploaded to your research server on schedule PRIVACY: All data collection requires explicit user consent. HealthKit data is collected only when enabled for the study and authorized by the participant. Health update access is used only when a study enables saving selected study-generated health records to Apple Health. Music and Photos data collection requires the corresponding iOS permission and stores metadata or on-device recognition labels, not media files. Keyboard data collection requires enabling the bundled custom keyboard and Full Access in iOS Settings. The default keyboard storage mode stores only metadata and masks the key and text fields. Data is transmitted only to the server configured by your study administrator. For research use only. Setup requires configuration by a study administrator.
Centinela
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When you can't ask for help, Centinela asks for you. The moment something goes wrong, the people you chose are alerted. They see where you are and hear what's happening in real time โ even if you can't reach your phone. YOUR VOICE IS ENOUGH A phrase only you know, or a scream, raises the alarm. No one around you needs to notice, and you don't need your hands. You decide when it's on. YOUR CIRCLE, LIVE The people you trust follow you on the map and hear what's happening while it's happening. No calls, no explaining. SILENCE IS THE ALARM Walking home or meeting someone new? Set a time. If you don't check in, your circle is told where you were going. TWO PINS One stops a false alarm. The other looks exactly like cancelling โ while your circle keeps following you. THEY GOT HOME Know your people arrived where they said, without texting and without sharing their location the rest of the day. NEIGHBORS NEARBY People close to you can be alerted too, with only an approximate area. The community map shows what's happening around you. PRIVACY FIRST Listening happens on your phone; nothing is recorded or sent until you ask for help. Only your circle sees your location and hears your audio. PLANS The community map is free. Protecting a circle needs a plan for that circle โ for 5, 10 or 20 people, monthly or yearly โ and everyone in it is covered. Joining someone else's circle is free. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. You can manage or cancel them in your App Store account settings. IMPORTANT Centinela is not an emergency service and does not contact the police or an ambulance for you. In an emergency, call your local emergency number. Terms of Use: https://getcentinela.app/terms.html Privacy Policy: https://getcentinela.app/privacy.html
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Verdict
The clearest difference is in-app purchases: AWARE Client V3 at none against Centinela's 2. AWARE Client V3 also leads on update cadence (daily vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Centinela sells 2 in-app purchases, starting at $6.99 per month. AWARE Client V3 asks for nothing beyond the download.
AWARE Client V3 ships an update daily, Centinela every 3 months. Both last shipped on October 31, 2026.
| Parameter | AWARE Client V3 | Centinela |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily โ better | Every 3 months |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad, Apple Watch โ better | iPhone, iPod |
| Requires iOS | 16.6 | 15.5 โ better |
| Further details โ not scored | ||
| Size | 20 MB | 169 MB |
| Age rating | 4+ | 12+ |
| Developer | Yuuki Nishiyama | Changing Lifes LLC |
In-app purchases
AWARE Client V3
No in-app purchases
Centinela
- Centinela Premium Monthly$6.991 Month
- Centinela Premium Annual$49.991 Year








