Jack Performance
Privacy policy
Last updated 18 August 2026 · Jack Performance, Dubai, United Arab Emirates
The short version
This app exists so we can coach you. The data you put in is used for that and nothing else. Your coach sees it, you see it, and nobody else does. An assistant helps your coach read and respond faster, and everything it touches is logged. We never sell your data, and you can have it exported or deleted by asking.
What we collect
Your account details: name, email, and phone number. Your coaching data: weekly check-ins, weight and measurements, progress photos, food logs, workout logs, habits, and your chat with your coach, including messages and voice notes sent on WhatsApp. If you turn on nudges, we store a push subscription for your device.
Health information
Coaching sometimes touches health: injuries, medical conditions, pregnancy, or anything else you choose to tell your coach. You decide what to share. Whatever you do share is treated as sensitive: it is used only to adapt your training and nutrition, it is visible only to you and the coaching team, and it is never used for advertising or shared with anyone else. This app is not a medical service; for medical questions, see a doctor.
The assistant
Your coach uses an assistant built into this platform. It transcribes voice notes, summarizes your check-ins, and drafts replies in your coach's own style. Depending on your coach's settings, a reply is either reviewed and sent by your coach, or sent automatically. Messages about injuries, health, money, or anything serious are always flagged to your human coach rather than handled automatically. Every message the assistant reads, drafts, or sends is logged, and your coach can see that log in full. The AI providers that power this are listed below; under our agreements with them, your data is not used to train their models.
Progress photos and voice notes
Photos and voice notes live in private storage that needs a signed link to open; there are no public URLs. Your photos are never used in marketing or shown to anyone outside the coaching team unless you give separate written consent. You can delete them, or ask us to, at any time.
If you message the coaching WhatsApp number, those messages are delivered through Meta's WhatsApp Business platform and then handled inside this system like any other coaching conversation. WhatsApp's own terms also apply to your use of WhatsApp itself.
Payments
Payments run through Stripe. Your card details go to Stripe directly and never touch our servers. We keep a record of what you paid for, when, and whether it went through.
Where it lives and who sees it
Everything is stored with Supabase in access-controlled databases, encrypted in transit. Access is limited to you and the coaching team; every table enforces that at the database level. A small set of service providers process data on our behalf to run the platform: Supabase (database and storage), Vercel (hosting), Stripe (payments), Meta (WhatsApp delivery), and the AI providers behind the assistant (Anthropic and Groq). None of them may use your data for their own purposes. We do not sell your data or share it with advertisers, ever.
How long we keep it
Your data is kept while you are being coached, so your history and progress stay intact. If you leave, ask for deletion and we remove your account and coaching data within 30 days. Payment records are kept as long as the law requires. You can ask for a copy of your data at any time and we will send it in a readable format.
Your choices
Push notifications are opt-in and switch off any time in your profile. You choose what to share in check-ins and chat. You can stop using the app whenever you want. To get your data exported or deleted, email hello@jackperformance.demo and we will handle it.
Questions
Anything unclear, ask. Email hello@jackperformance.demo or message your coach in the app.