Privacy Policy

Last updated: 3 September 2026

This policy explains what data Koncur ("we", "our", "Koncur") collects when you use the Koncur mobile app or website, what we do with it, and the controls you have. We've written it to be specific rather than generic — every category below corresponds to actual data the app handles.

Short version: we collect the minimum needed to generate your training programme, track your workouts, and adjust your programme from your recovery. We do not sell your data, do not share it with advertisers, and do not use your training data to train any AI model.

1. Who's responsible

Koncur is operated by Alex Bigby (sole trader, United Kingdom). Contact: hello@koncur.app.

2. What data we collect, and why

Account data

From sign-up or Sign in with Apple. Used to identify your account and send transactional notifications (e.g. password reset).

Name

Optional display name shown inside the app. Never displayed to anyone else.

Date of birth

Used for age-based heart-rate calculations (HR_max = 220 − age) and metabolic estimates. Not displayed.

Sex

Used for sex-specific physiology coefficients (Banister TRIMP, calorie estimation). Optional.

Height & weight

Used for mechanical-load calculations. Optional.

Health & fitness data

Apple HealthKit

With your explicit permission, Koncur reads: steps, active energy, resting heart rate, heart-rate variability, walking heart-rate average, heart-rate recovery, sleep analysis, workouts, body mass, VO₂ max, respiratory rate, oxygen saturation. We write completed workouts back to Apple Health (workout type, duration, calories, distance). HealthKit data is read on-device and used to compute your readiness score and inform programme adjustments.

Bluetooth heart-rate strap

Real-time HR samples from Polar / Garmin / Wahoo straps during sessions. Used live for zone display and saved as session summary statistics. Only the summary (avg HR, peak HR, time in zones, TRIMP) is stored on our servers.

Logged sessions

Sets, reps, weight, RPE, completion timestamps. The basis of your programme adjustments and PR detection.

Recovery readings

HRV / RHR / sleep — read from Apple Health, summarised, stored as a daily snapshot to power the Readiness score and trend chart.

Location data

The iPhone app does not request your location. The Apple Watch app asks for location only if you start an outdoor run or ride from the watch; with your permission it records the route alongside heart rate, saves it to Apple Health as part of the workout, and the route is attached to that session in your Koncur account so the session review can show a map. Routes are never shared with third parties and are erased with your account. Indoor sessions and anything started on the phone record no location.

Background location is used only while a run/ride session is active so distance and pace stay accurate when your phone screen is off. We never collect background location outside an active session.

Programme generation

Your programme is generated on our own servers from your profile, goals and logged sessions. When you ask for a programme to be rebuilt with written feedback, that feedback and a summary of your recent training are sent to Anthropic (US) to be analysed into a proposed change, which you accept or reject in the app. Per Anthropic's API terms this data is not used to train Anthropic's models. There is no chat feature and no conversation logs are kept.

3. What we don't do

We do not sell your data to anyone.
We do not share your data with advertisers or analytics brokers.
We do not use your training data to train any machine-learning model — yours or anyone else's.
We do not request location, microphone, contacts, photos, or camera access for anything other than the strict purposes above.
We do not upload your raw HealthKit history. Only the summary metrics shown in the app are sent to our servers.

4. Where your data lives

Supabase (EU region) — our database and authentication provider. Stores your account, programme, logged sessions, recovery snapshots and crash reports. Encrypted at rest.
Apple HealthKit — stays on your device. We never transmit raw HealthKit data; only computed summaries.
Anthropic (US) — analyses regenerate-feedback requests (see Programme generation). Per Anthropic's API terms, the contents are not used to train their models.
Sentry (EU ingest) — crash and error diagnostics: device model, OS version, app version and the error trace. No name, email or health values are sent.
Apple App Store / RevenueCat — handles your subscription billing. We never receive your payment-card details.

5. How long we keep it

Account & training data: for as long as you have an account. Deleted within 30 days of account deletion.
Crash & diagnostic logs: kept up to 30 days, anonymised after that.
Backups: overwritten on a 30-day rolling cycle; deleted accounts are purged from backups within 60 days.

6. Your rights and controls

Inside the app

Delete your account. Open Profile → "Delete account". This permanently erases your programme, all logged sessions, recovery data and your account credentials. Cannot be undone.
Revoke HealthKit access. iOS Settings → Privacy & Security → Health → Koncur → toggle categories off.
Revoke Location access. iOS Settings → Privacy & Security → Location Services → Koncur → choose "Never" or "While Using".
Revoke Bluetooth access. iOS Settings → Bluetooth → Koncur → toggle off (will disable HR-strap pairing).

By writing to us

UK and EEA residents have the right under UK GDPR / EU GDPR to access, rectify, port, restrict, or delete personal data we hold. Email hello@koncur.app from the address on your account. We respond within 30 days.

7. Children

Koncur is intended for users 16 years of age or older. We do not knowingly collect data from anyone younger. If you become aware that a child has provided us with personal data, please contact us and we will delete it.

8. Brand transition (FXV Performance → Koncur)

Koncur is a new App Store listing (bundle identifier app.koncur). It is not an update to the earlier FXV Performance app: subscriptions, accounts and logged data do not carry over between the two, and FXV Performance is no longer maintained.

9. Changes to this policy

If this policy changes materially, we'll notify you in the app before the change takes effect. Minor clarifications are reflected in the "Last updated" date at the top.

10. Contact

Questions, concerns, or rights requests: hello@koncur.app.

If you're an EEA / UK resident and unsatisfied with our response, you have the right to lodge a complaint with your local data protection authority (e.g. the UK Information Commissioner's Office at ico.org.uk).