Privacy policy

Last updated: 8 October 2026

Tandem helps people find others to train with and show up together. This policy explains what we collect, why, who we share it with, and the choices you have. Tandem is run by Gregg Finn and Adam Angel in Tel Aviv, Israel ("we", "us"). Contact us at hello@trainintandem.com.

What we collect

Your account

• Your email address, and the account ID from Apple or Google if you sign in with them.
• Your name, username and profile photo.

Your profile, which you choose to fill in

• Bio, cities you train in, what you do and where you work, links to other profiles (Instagram, LinkedIn, Strava, a website).
• Training goals, usual pace or speed, training style, and interests.
• Gender and birthday, if you add them. These are private unless you switch on "Show on profile"; even then we show your age, never your birthday.

What you do on Tandem

• Sessions and Regulars you create, join, skip or leave, and clubs you belong to.
• Check-ins, attendance, partner tags, high fives, photos and chat messages.
• People you follow, block or report, and reports you send.

Your device

• A push notification token, your notification settings and your phone's time zone.

Location

• When you use Discover or check in, the app reads your location once. It is used to show nearby sessions or to confirm you are at a meeting point, and is not stored or tracked. Meeting points you set for your own sessions are visible to others.

Strava (optional, if you connect it)

• An access token and a summary of your recent activity (typical pace and distance).

Early access on our website

If you sign up for early access at trainintandem.com, we keep the email address you give us and, if you add them, your first name, city, what you're training for and whether you have an iPhone. We use them only to invite you to try Tandem and to decide who to invite first. We don't add you to a newsletter or share them with anyone. Email hello@trainintandem.com to be removed at any time.

Why we use it

• To run Tandem: your account, your profile, sessions, chat, check-in, and notifications you've chosen.
• To build trust between people who meet: show-up rate from attendance, and partner tags.
• To suggest sessions, people and clubs that fit you, using your cities, goals, pace, mutual training partners and clubs. If you show your gender or age, others can use them to filter suggestions; if you keep them hidden, they aren't used at all.
• To keep people safe: handling reports and blocks.
• To fix problems and improve the app.

We do not sell your data and we do not show ads.

Who can see what

• Everyone on Tandem: your name, photo, bio, cities, work, links, training details and stats such as show-up rate, and the sessions you host.
• Only if you choose: your gender and age.
• People in the same session: that you're going, whether you've checked in, and your messages and photos in that session.
• Never: your email, birthday, or where you are.
• People you block, and people who block you, can't see each other.

Who we share it with

Only the services that run Tandem, each acting for us:

• Supabase (database, sign-in, file storage), servers in London, UK.
• Expo (delivering push notifications).
• Apple and Google (if you sign in with them).
• Komoot / Photon (place and city search: what you type into those searches is sent to them, nothing else).
• Strava (only if you connect it).
• Vercel (hosting our website).

We share information with authorities only when the law requires it.

How long we keep it

Until you delete your account. Deleting your account (Settings → Delete account) removes your profile, photos, messages, tags and history straight away; copies in our daily backups are deleted within 7 days, when those backups expire. Clubs you created pass to another member, and people going to your upcoming sessions are told they're cancelled.

Your choices and rights

• Edit your profile and what you show at any time.
• Turn notifications on or off by type, or set quiet hours (Settings → Notifications).
• Turn off location or photo access in your iPhone settings.
• Block or report anyone.
• Delete your account in the app.
• Ask us for a copy of your data, or to correct it, at hello@trainintandem.com.

If you're in the UK or EU you also have rights under data protection law, including complaining to your local regulator.

Age

Tandem is for adults, 18 and over.

Changes

If we change this policy in a way that matters, we'll tell you in the app before it takes effect.