Sine Pro 4+

Personal Check-In Platform

Sine Group Pty Ltd

    • Free

iPhone Screenshots


Streamline check-in at site.

Check in to Sine sites for free using the Sine mobile app on your phone.

Free visitor and contractor management app. Save time and go paperless. Easy to use, safe and secure.

No more queues, paper sign-in books or repetitive paperwork. Sine will provide your check-in details and store your data against your profile for future use every time you return to a site. It will remember and populate your entry responses each time you check in.

Faster and more convenient check-in
- Check in to participating sites with just one tap or automatically check in at permitted sites.
- Swipe to check in and out from your lock screen on arriving at a site.
- Scan into sites using the app where Sine branded QR posters are displayed for fast track access.
- Ideal for busy, repeat visitors, contractors and staff requiring continual access to sites and events.

Faster and more convenient check-out
- Receive automatic notifications when you leave your site to remind you to check out.
- Scan conveniently located QR codes to check out when leaving site or utilise automatic check out with geofence information.
- Confirm your mobile number, email or photo ID and get access to more sites using Sine.

Enhance safety and security of your personal information
- Answer site induction information from your Sine app and your responses will be saved for your next visit.

Keep track of your movements:
- No more time sheets; keep a record of your movements at the sites you visit.
- Login to the Sine web dashboard and export all your daily movements.

Visiting sites that are still using painful paper sign-in books? Ask them to try Sine for free and go paperless.

What’s New

Version 1.29.0

- Minor bug fixes and improvments

Ratings and Reviews

2.7 out of 5
71 Ratings

71 Ratings

Aussiesandhu ,

Location concerns

This app use always allows for location . It’s drain battery a lot. please change the location from always allow to (while using app).

Developer Response ,

The App is designed to use geofencing to be set to "always allow" to determine that you are at a site. This offers visitors the ability to check-in from their phone as they arrive at the location. You can turn off this permission when prompted, but it will prevent you from using this feature to check into certain sites that have opted for this option. In that case, you can always check in manually, but happy to pass this on as a feedback to the team. For further issues, please contact our 24hr support team via, live chat via our website, or

melunty ,

Works well except notifications not working

I have used this app for many years however notifications to sign in have stopped since the latest iOS 15 or the latest Sine pro update, can’t tell which. Most staff in our organization are having the same issue.

Developer Response ,

Thanks for the feedback! We are aware of these changes introduced by iOS 15, and we are currently developing a tool to assist with diagnosing these issues. We have noticed an improvement when running the most recent iOS 15.1, so if you haven't already, give this a go and let us know how you get on. Our support team is available 24/7 so reach out any time. Regards, Team Sine

christian806 ,

Nice check in app

Not a bad check in app for the average user. Just wish it would add some more features. Would love to see some more admin features such as, activity log for the site and invitations. Thanks

Developer Response ,

Thank you for your feedback!

App Privacy

The developer, Sine Group Pty Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer's privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


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