LiftOSWho operates LiftOS
LiftOS is operated by CNVRT Digital. For questions about your information, contact hello@cnvrtdigital.co.uk.
Information the app uses
LiftOS uses your email address and account identifiers for sign-in and ownership of your training record. It stores workouts, exercise results, routines, programmes, food entries, nutrition targets, bodyweight, preferences and information you choose to enter in your profile or notes.
Optional profile information may include date of birth, height and training limitations. You can leave optional answers blank. If you choose to connect Apple Health, LiftOS reads sleep samples to show sleep and recovery trends. Raw Apple Health samples, source identifiers and wearable details remain on your iPhone and are excluded from LiftOS cloud backups and exports. If your version includes Bedside sessions and you explicitly start one, LiftOS uses the microphone to create an overnight sound timeline and sound highlights. LiftOS does not upload the audio or include it in its cloud backups or exports. Audio is stored separately for each account. It expires after seven days, cannot be played after expiry, and is deleted during app use or when the app next runs. You can delete it sooner. LiftOS marks its audio storage for exclusion from operating-system backups; these exclusions are managed by iOS and are not an absolute guarantee about every device backup. Derived session summaries, labels you add and manual sleep entries are part of your LiftOS record and may be backed up. Installation identifiers support backups and ownership. The app stores session credentials in the iPhone Keychain.
How that information is used
Your information supports account access, workout tracking, progress views and cloud backups. A local record remains on your iPhone so you can train offline. Authentication and connected backups use Supabase; the primary database is hosted in London, United Kingdom. Account and password-recovery emails are delivered through Resend. Resend handles recipient addresses, message content and delivery records; its customer data is stored in the United States, even when email sending is routed through Ireland.
The app has no advertising tracking or third-party analytics SDK. If you enable personal Coach replies, LiftOS sends your question and a limited set of relevant confirmed profile, training or food facts to OpenAI to create the reply. Sleep is excluded unless you separately enable Sleep and Coach; when enabled, only derived duration, trend, recording-coverage, reviewed sound-count and morning check-in summaries are sent. Raw Apple Health samples, wearable identifiers, audio recordings and local file details are never included. OpenAI processes this information as LiftOS’s AI service provider. Your Coach question and generated reply are stored with your LiftOS account in Supabase so the service can operate and be audited. You can turn off personal Coach replies or Sleep and Coach at any time; later requests will exclude that information. Service providers may keep operational and security logs under their applicable terms.
Food search and product photos
When you choose online food search or scan a barcode, LiftOS sends your search words or barcode and normal connection information, including your IP address, to Open Food Facts. It does not send your LiftOS account, nutrition targets or food diary to that service. Saved foods and the bundled UK food catalogue can be searched on your iPhone without an online request. Camera images remain on your iPhone. Product photos load from Open Food Facts; its image server receives normal connection information. Community product data may be incomplete, so check the current pack before saving it.
Storage, backups and deletion
Your local record remains on your iPhone until removed. Bedside audio expires after seven days and is removed during app use or when the app next runs and can be deleted sooner from the morning review. Connected cloud data, including Coach questions and replies, remains while your account is active. In-app account deletion removes your account and its associated active cloud data. Resend retains email and log data for 30 days on the current free plan. See Resend’s data protection information. Other provider backup and log copies may remain for their applicable retention periods; account deletion does not promise instant removal from every infrastructure backup.
The app explains the separate ownership choices for the record retained on your iPhone. To remove that record, delete the app through iPhone storage settings after account deletion succeeds. Offloading does not erase the local data. Export files remain wherever you save or share them, until you remove them there.
Your choices
You can edit profile information, correct workout, food and manual sleep records, disconnect Apple Health, control which sleep summaries Coach may use, export your LiftOS data and delete your account in the app. Apple Health source data remains under your control in the Health app. Contact us for access, correction, deletion or other privacy requests that the app cannot resolve.
Depending on the circumstances, UK data protection rights can also include restricting or objecting to processing, portability and withdrawing consent where consent is relied upon. You can contact the Information Commissioner’s Office if you have a concern about how your information is handled.
This website
These support pages do not ask you to create an account, submit a form or upload training records. They contain no advertising or analytics scripts. Hosting infrastructure may process connection information needed to deliver the pages and keep the service secure. If you email support, your email provider and ours handle that correspondence.
Updates
We will update this page when the app’s use of information changes and explain material changes where appropriate.