Nisus is a coaching app operated by Theory Elemental ("we", "us"). This policy explains what information Nisus collects, who can see it, and the choices you have. It applies to the Nisus app for iPhone and the Nisus web app.
Questions or requests: info@theoryelemental.com
The short version
- Nisus exists so a coach can coach you. We collect what that takes and nothing more.
- No ads, no tracking, no analytics tools, and we never sell your information.
- Some of what you share is health information — injuries, body measurements, progress photos. We treat it that way (see Consumer health data).
- Your coach sees your training and profile. Your meal log and progress photos have switches you control.
- The people who run Nisus cannot read your messages, meals, photos or measurements.
- You can delete your account and everything in it yourself, from Settings, at any time.
Who uses Nisus
- Members — people being coached.
- Coaches — people who program training for members on their team.
- The platform owner — us. We create teams and coach accounts and keep the service running.
There is no public sign-up. Every account is created by a coach or by us.
What we collect
Your account. Your name, email address and role (member or coach). When your account is created, we generate a one-time invite link so you can set your own password. We never see your password.
Your training profile. Your experience level, goals, where you train, the equipment you have, how many sessions a week you can realistically make, your preferred days and session preferences, your preferred units, and the date you joined.
Optional details. Your sex, date of birth and height, if you choose to give them. The app works without them. You can add, change or remove them at any time from Settings → Update my answers.
Injuries and physical limitations, in your own words.
Your training record. Your plan, scheduled sessions, the sessions you complete (including how long they took, the sets you did, and how hard they felt), notes you add, and what you chose to do about a missed session.
What you choose to log. Meals and meal photos, water, habits, body measurements (such as weight, body-fat percentage and tape measurements), and progress photos.
What your coach sets for you. Daily nutrition targets and habits to work on.
Your messages with your coach, including any photos you attach.
Notification token. If you allow notifications, your device's notification token, so we can tell you when your coach has messaged you.
Coach information. For coaches: name, email, the team you coach, and any "away until" date you set so members know when to expect a reply.
Account administration records. When an account is created, re-invited or disabled, we record who did it, to whom, when and why, so that control over accounts always leaves a trace.
Service records. Short-lived counters that stop the service being abused, and routine server logs that record that a request happened (not what it contained).
What we do not collect
- No data from Apple Health or other health platforms.
- No location, contacts, advertising identifiers or browsing history.
- No analytics or tracking tools of any kind, in the app or on the web.
- No payment information. Nisus takes no payments.
How we use it
We use your information only to:
- provide the coaching service: show you your plan, let your coach program for you, and let the two of you talk;
- send the notifications you have allowed;
- keep accounts secure and prevent abuse;
- show the platform owner team totals (for example, how many sessions a team completed). These totals never include what anyone ate, wrote or photographed.
We do not use your information for advertising, we do not sell it, we do not build profiles of you for anyone else, and we do not use it to train artificial intelligence models.
Who can see what
You can see everything you have entered or been given.
Your coach always sees: your training profile (including the optional details above, if you gave them), your injuries and limitations, your plan and sessions, whether and how you completed them, your body measurements, and your messages. A coach cannot program for you safely without these. If you would rather your coach did not have an optional detail, leave it blank.
Your coach sees these only if you allow it, and you can change your mind in Settings at any time:
| Information | Starts as |
|---|---|
| Your nutrition log, including meal photos | Shared |
| Your progress photos | Private |
Progress photos have a second lock: even with sharing on, each photo stays private until you share that individual photo. Turning sharing off takes effect immediately, including for photos your coach saw before. When your coach opens a photo, the app gives them a link that expires after five minutes.
Coaches only ever see members on their own team.
The platform owner can see account details (names, email addresses, roles, teams, and whether an account is active), the administration records described above, and team totals. The owner cannot see your messages, meals, photos, measurements, injuries or training profile. This is enforced by the system, not just by policy.
Nobody can sign in as you. Once you have set up your account, neither your coach nor we can get a link that would let us into it. A password reset can only be started by you, from the sign-in screen, and the link goes to your own email.
Outside the app. If your coach writes notes about you somewhere other than Nisus, those notes are theirs, not ours, and this policy does not cover them.
Service providers
We use a small number of companies to run Nisus. They process your information only on our instructions and only to provide their service to us:
| Provider | What they do for us |
|---|---|
| Google (Firebase / Google Cloud) | Hosting, database, photo storage, sign-in, and server code |
| Expo | Relays notifications to your device, and hosts the web app |
| Apple | Delivers notifications to your iPhone |
Notifications carry a generic line — "You have a new coaching message" — and never the content of a message.
We may also disclose information if the law requires it, to protect someone's safety, or as part of a sale or reorganization of our business. In that last case, this policy continues to apply to your information.
Consumer health data
Some U.S. state laws, including Washington's My Health My Data Act, give extra protection to "consumer health data". In Nisus that means:
- What: injuries and limitations; body measurements, including weight; sex, date of birth and height if given; progress photos; meal logs and photos; workout performance and effort; and nutrition targets.
- Why: only to provide the coaching service you signed up for, as described above.
- Where it comes from: you, and your coach (for plans, targets and habits).
- Who receives it: your coach, as described under Who can see what, and our service providers listed above. We do not sell consumer health data and do not share it for any other purpose.
- Your rights: you can see the health data we hold about you, get a list of everyone we have shared it with, withdraw your consent, and have it deleted. Use Settings → Delete account, or email info@theoryelemental.com. If we decline a request, you can appeal by replying to our decision. We will respond to an appeal within 45 days.
How long we keep it
- While your account is open, we keep your information so the app works.
- When you delete your account yourself, your information is deleted immediately. See the next section for what that covers.
- If your account is closed or disabled by your coach or by us, we delete your information within 30 days, unless you ask us before then to restore your account.
- Account administration records are kept for 2 years, then deleted.
- Abuse-prevention counters are deleted automatically, usually within a day.
- Server logs expire on our providers' standard schedules.
Deleting your account and your other choices
Delete your account from the app: Settings → Delete account. It permanently removes your profile and sign-in; your plans, sessions, completions and recovery choices; your nutrition log, water, habits and nutrition targets; your body measurements, progress photos and meal photos; your milestones; your conversation with your coach, including every message in it; and your notification registration. There is no undo, and we keep no copy.
If a coach deletes their own account, their members keep their accounts and history. The messages that coach sent remain part of each member's conversation.
Other choices:
- Change what your coach can see in Settings.
- Change or remove your optional details in Settings → Update my answers.
- Turn notifications off in Settings or in your device settings.
Requests by email. Email info@theoryelemental.com to get a copy of your information, correct it, or delete it. We will confirm it is you, and respond within 45 days.
Security
Information travels encrypted between your device and our servers, and is encrypted where it is stored. Access is enforced on our servers, not just in the app: members can reach only their own records, coaches only their own team, and nobody can grant themselves a different role. Photos are stored privately and shown only through short-lived links. No system is perfectly secure, but we design Nisus so that a mistake in the app cannot widen what someone is allowed to see.
Children
Nisus is for people 18 and over. We do not knowingly collect information from anyone younger. If you believe someone under 18 has an account, contact us and we will delete it.
Where your information is processed
Nisus is operated from the United States, and your information is stored and processed in the United States.
Do Not Track
Nisus does not track you across other apps or websites, so there is nothing for a "Do Not Track" browser signal to switch off.
Changes to this policy
If we change this policy, we will update the effective date above and tell account holders in the app. If a change would use your health information in a new way, we will ask for your consent first.
Contact us
Theory Elemental
info@theoryelemental.com