Privacy policy
What the Caden app collects about you and your running videos, how the analysis and AI coaching review use that data, and how to delete it.
Last updated: October 2, 2026.
Caden is an iPhone app that analyses running form from a short video. This policy explains what we collect, why, and how to remove it. Questions and requests go to hello@runcaden.com.
What we collect
Account information. If you create an account, we store your email address and sign-in identifier through Sign in with Apple or email.
Profile answers. During onboarding you tell us your running experience, goal, weekly mileage, injury history, pain areas, focus and reminder preferences. Injury history and pain areas are health-related answers. We use them only to tailor the guidance the app shows you.
Videos and analysis data. For each analysis we store the camera view and direction, the date, the video clip itself, the form score, the metric measurements, and the breakpoint frames at foot strike, midstance and toe-off. Before upload, the app removes the audio track on your phone and exports a video-only copy.
Plans and progress. Your generated plan, which sessions you completed, and when.
Purchases. Your subscription status. Payments are processed by Apple through the App Store. We never see your card details.
Service data. Our hosting providers keep standard server logs like IP addresses and request timestamps for security and debugging.
Ad attribution. When you install Caden, our attribution provider, Appstack, records the install with an app-specific device identifier, your device model, time zone and IP address. If you came from one of our ads, this tells us which ad it was. This identifier is not the advertising identifier. Appstack also records a few in-app milestones, such as finishing onboarding, creating an account and starting a subscription.
What we do not collect
- The audio track never leaves your phone. It is removed before the clip uploads.
- Precise location, contacts, browsing history, or the advertising identifier, known as IDFA. Caden does not ask to track you.
- We do not show ads in the app.
- We do not use your videos or frames to train models.
- We do not sell your data.
How we use your data
- To run pose estimation on your clip and return your measurements and score.
- To show your history, trends and before-and-after comparisons.
- To build your plan and track the sessions you complete.
- To operate subscriptions and respond when you contact support.
- To measure which of our ads bring people to Caden.
- To keep the service secure and debug problems.
Who we share it with
Your data is handled by the service providers that run Caden: sign-in, database, file storage, payments, subscription analytics, ad attribution and the AI coaching review. Each receives only what it needs to do its job.
When we advertise Caden on Meta, which runs Facebook and Instagram, or on TikTok, our attribution provider tells that ad platform when an install or milestone came from one of its ads, so it can measure the campaign. It shares the event and the ad it matched, never your videos, measurements, health answers or email address. We do not sell your data.
AI coaching review
Every analysis includes an AI coaching review. Uploading sends that run's numeric measurements and up to three breakpoint frames to our AI provider, which writes the plain-language coaching note. The review can adjust the overall score slightly within a fixed bound. It cannot change any measurement.
Retention and deletion
Your data is kept until you delete it.
- Delete a single analysis by holding its row on the Home tab and choosing Delete analysis, or from the analysis screen. This removes the clip, breakpoint frames, measurements and score. Removal is asynchronous and finishes shortly after.
- Delete your whole account under Settings, the profile button on Home, then Delete account, or by emailing hello@runcaden.com. We remove your profile, analyses, plans and stored media.
- Deleting the app alone does not delete server data.
Your rights
You can see everything we store about your analyses in the app. You can also ask us to:
- Export a copy of your data.
- Correct inaccurate information.
- Delete some or all of your data, or use the in-app controls above.
If you are in the EU, UK or California, you have additional rights under GDPR or CCPA, including the right to complain to your local regulator. Email hello@runcaden.com for any of these.
Children
Caden is not intended for children under 13, and we do not knowingly collect their data.
Security
Clips and frames sit in private cloud storage, reachable only through short-lived signed links. Traffic between the app and our servers is encrypted in transit. Account access is checked on every request.
Where data is processed
Our service providers run in the United States. By using Caden you understand your data is processed there under the protections described above.
Changes
We may update this policy. Material changes will be announced in the app and the date above will change.