Uqbar — Behavioral tension insights · Last updated: October 23, 2026
Uqbar analyzes video and audio to estimate behavioral tension signals (blinking, facial movement, gaze, head pose, voice rhythm, pitch and volume, and similar observable patterns). All of this processing happens locally on your iPhone, using Apple's on-device frameworks. Your videos, live camera feed, microphone audio, and analysis results never leave your device.
Uqbar analyzes video of a face to estimate behavioral tension signals. All face data is processed exclusively on your device, using Apple's on-device Vision framework.
What is processed: facial landmark positions (eyes, brows, lips, head pose) and, optionally, an estimate of pulse derived from subtle skin color changes in the video. No biometric identity template is ever created: Uqbar cannot recognize, identify, or authenticate anyone.
How it is used: solely to compute the tension indicators shown to you in the app (blinking, gaze, facial tension, head stability, pulse estimate).
Storage and retention: analysis results and any videos you record are stored only locally on your device, until you delete them in the app. Intermediate face data (landmarks, pixel buffers) is discarded immediately after each analysis.
Sharing: face data is never transmitted off your device. It is not shared with us or with any third party, including any third-party AI service.
Deletion: deleting an analysis (or using "Clear all history") permanently removes it from your device. There is no copy anywhere else.
This section is our public written policy regarding biometric data, provided for transparency under laws such as the Illinois Biometric Information Privacy Act (BIPA), the Texas Capture or Use of Biometric Identifier Act (CUBI), and similar state statutes.
The optional camera-based pulse estimate could be considered health-related information under laws such as the Washington My Health My Data Act and the Nevada consumer health data law. For clarity: we do not collect, process, share, or sell consumer health data. The pulse estimate is computed on your device, is stored only on your device as part of your analysis history, and is deleted when you delete the record or the app. No consumer health data is ever transmitted to us or to any third party, and we therefore do not and cannot sell it or share it. If you have questions about this section, contact [email protected].
Analysis history (thumbnails, scores, optional session videos or storyboards you choose to keep) is stored only in the app's private storage on your device. Your credit balance may sync between your own devices through Apple's iCloud Key-Value Storage, tied to your Apple Account — this is a number (your remaining credits), handled by Apple under Apple's privacy terms; we cannot access it. Deleting a record in the app, or deleting the app itself, permanently removes your local data. We have no copy — we never had one.
Uqbar requests camera access to record and analyze video, microphone access to analyze voice tone during recordings and live sessions, and lets you pick videos from your library. These permissions are used exclusively for the analysis you explicitly start, and you can revoke them at any time in iOS Settings.
Credit packs and subscriptions are processed entirely by Apple through the App Store. We do not see or store your payment information. Purchase entitlements are verified on-device through Apple's StoreKit framework.
To know whether our own ads work, Uqbar includes the software development kit of Meta Platforms, Inc. (the "Meta SDK"), used only to measure our advertising campaigns on Meta's platforms. It is completely separate from the analysis features: it has no access to your videos, audio, face or voice data, or results.
What it sends, and only when active: app installation, app opens, and in-app purchase events (product, price and currency), together with technical information such as device model, operating system and app version, language, time zone, an app-generated anonymous identifier, and the IP address from which the request is received.
What it never sends: your videos, audio, face or voice data, analysis results, or anything you do inside an analysis. Uqbar has no accounts, so there is no name, email, or contact information to send. We do not request App Tracking Transparency permission and we have disabled collection of Apple's advertising identifier (IDFA). This information is not linked to your identity and is not used for tracking as defined by Apple.
Limited Data Use: we enable Meta's Limited Data Use option, which restricts how Meta may use this information for residents of U.S. states with applicable privacy laws.
Where it is off: when your device's region is set to a country of the European Economic Area, the United Kingdom or Switzerland, the Meta SDK is never activated and the app sends no measurement data at all.
How to turn it off: in the app, open the menu (top right) and switch off Privacy → Ad measurement. It stops sending events right away. You can also write to [email protected].
Meta handles the data it receives under its own Privacy Policy.
Install attribution may also be performed by Apple's SKAdNetwork framework, operated by Apple, which reports only aggregate, anonymous campaign results to the ad network and contains nothing about your activity in the app. Advertising on the App Store itself is measured by Apple under its own privacy terms.
State privacy laws — including the California Consumer Privacy Act as amended by the CPRA, and similar laws in Colorado, Connecticut, Texas, Virginia, and other states — give residents rights over personal information that businesses collect about them. Uqbar's answer to all of them is simple:
Your analysis data is protected by iOS's application sandbox and your device's encryption. Uqbar has no servers of its own, and your videos, audio and results are never transmitted, so the most effective security measure is structural: that data cannot be breached, intercepted, or disclosed by us, because it never reaches us. Advertising measurement events, where active, travel directly to Meta over encrypted connections.
Uqbar is not directed at children, and our Terms of Use require users to be at least 18. We do not knowingly collect personal information from children under 13; the only data the app sends is the de-identified measurement activity described above. If you believe a child has used the app in a way that concerns you, contact [email protected]; note that any data involved exists only on the device in question and can be deleted there.
If you analyze a video of another person, you are responsible for providing any notice and obtaining any consent required by the laws that apply to you — including all-party recording consent laws and biometric privacy laws such as BIPA, which may require written consent. Uqbar processes that material on your device only, and it describes observable behavior — it does not establish truthfulness, intent, or emotional state as fact.
Uqbar's analysis works the same way everywhere: on your device, with nothing sent anywhere. When your device's region is set to the European Economic Area, the United Kingdom or Switzerland, the Meta SDK is never activated, so the app sends no data at all; we do not receive personal data from you, and processing performed by the app on your device is under your control. Note that some jurisdictions restrict the use of emotion inference systems in certain contexts (for example, the EU AI Act in workplaces and education); see our Terms of Use.
If we change how Uqbar handles data, we will update this page and the app's privacy details on the App Store before the change takes effect, and we will ask for your consent in the app wherever the law requires it. The on-device nature of the analysis is a core design principle: your videos, audio, face and voice data, and results will not be sent off your device.
Questions about privacy: [email protected]