Crestly Privacy Policy

Last updated: 4 June 2026

Crestly is a fitness and lifestyle tracking app. This policy explains what data the app uses, where it is stored, and the limited cases in which any data leaves your device. Crestly is built to be private by default: your training, nutrition, supplement, and wellness logs stay on your iPhone.

No account, no sign-up

Crestly does not create an account. We do not collect your name, email address, phone number, or any login credentials. You can use the entire app without telling us who you are.

What is stored on your device

The following are stored only on your device using Apple's on-device database (SwiftData) and are never transmitted to us or sold to anyone:

• Your workout routines, sessions, sets, reps, and weights
• Nutrition entries, calories, and macros
• Supplement schedules and check-ins
• Wellness logs (mood, energy, notes)
• Your profile details (display name, body stats) and app preferences

You can export your full history at any time as JSON or Markdown, and you can delete your data from within the app. Because this data lives on your device, deleting the app removes it.

Apple Health

With your explicit permission, Crestly reads activity metrics from Apple Health (such as active energy, steps, exercise minutes, body weight, and heart rate) to show them alongside your training, and writes your completed workouts back to Apple Health as strength-training sessions. Health data stays on your device, is governed by Apple's Health permissions, is never used for advertising, and is never shared with third parties. You can revoke this access at any time in the iOS Health app.

Advertising (Google AdMob)

Crestly is free and supported by occasional ads served through Google AdMob. To deliver and measure ads, the AdMob SDK may collect a device advertising identifier, coarse (region-level) location, and ad interaction data. This is the only component of the app that uses data for advertising.

• You are asked for tracking permission through Apple's App Tracking Transparency prompt. If you decline, ads are not personalised using a cross-app identifier.
• You can remove ads entirely with a one-time in-app purchase ("Remove Ads"). After purchase, no ads are shown and the AdMob SDK is not used to serve them.
• Google's handling of ad data is governed by its own policy: https://policies.google.com/technologies/ads.

Barcode lookups

When you scan a food barcode, Crestly sends only the barcode number to the Open Food Facts public database (openfoodfacts.org) to retrieve public product nutrition information. No personal data, account information, or device identifier is sent with the lookup.

In-app purchases

The "Remove Ads" purchase is processed entirely by Apple through the App Store. We do not receive or store your payment details.

Children

Crestly is not directed at children under 13 and does not knowingly collect data from them.

Your choices

• Decline or revoke Apple Health access in the iOS Health app.
• Decline tracking at the App Tracking Transparency prompt, or change it in iOS Settings → Privacy & Security → Tracking.
• Remove ads with the one-time in-app purchase.
• Export or delete your data from within the app.

Changes to this policy

If we change how the app handles data, we will update this page and the "Last updated" date above before the change ships in a new app version.

Contact

For any privacy questions, contact crestly.app@gmail.com.

Crestly is operated by Jagdeep Duhra.