Everyone you love, on one map.
Share live location phone to phone, free. Add a Tack for anyone without a phone.
Free on iPhone and Android.
and Android
in a Sphere
the map
on Premium
For the ones without a phone
No phone? Add a Tack.
A GPS tracker with its own SIM. It shows on the same map, with the same zones and alerts.
Also in the app
The little things.
Share a link
Their latest location, for 1, 3 or 7 days.
Dark mode
Light, dark or automatic. Map included.
Tap and go
Alerts open on the right person or Tack.
Activity per Tack
Time, battery and signal for each update.
Switch modes
Speed a Tack up or slow it down in one tap.
You choose
Who joins a sphere, and what it sees.
Customer reviews
In their own words.
I bought a tack so I can keep an eye on my Mom who lives in a different city than me. I love the geofence! It sends me an alert when she leaves her building … The tack has eased my mind.
Great, accurate GPS tracker without exorbitant monthly fee. Fits inconspicuously in child's backpack and offers peace of mind as a parent of a first-time bus rider.
Great little tracker,bought 4 to track my mother that has dementia, app interface is nice, does all you need.
Great product. I use it to track my child with special needs while on the school bus and on field trips. Gives me peace of mind. I love how the app tells you when to charge the battery so you don’t have to worry about it. It’s easy to conceal in their backpack as well. Would recommend.
The device works great! I’m very pleased. It tracks my father both indoors and out and it really makes me worry less about him. … Also, the price of the device and the subscription is very affordable and worth it compared to the spotty coverage of Bluetooth only devices.
The responsiveness and accuracy of the GPS has meant we have found our dog twice very quickly when she has escaped. … Highly recommend if you have an escape artist furry friend.
… it's working well and the app interface is really nice too! difference with apple airtag or Samsung smarttag is that this does not rely on other nearby apple/Samsung phone users to help rely the tags location. this gps tracker have its own sim card so it will work so long it have signal.
Helps track my 3 year old two and from school. Gives us peace of mind knowing he got there safe everyday with alerts once he leaves or arrives to a certain location.
I bought 2 of these for my parents as they travel to AZ from MN. They both use flip phones … I get notices when it needs to be recharged as well as when they are "on the move". Great ease of mind!!!
Great product for tracking what's important. I got it to be able to track my daughter's e-bike. … The accuracy is great and the cost of the unit and monthly tracking is extremely reasonable.
Reviews from buyers on our store, Shopee, Lazada and Amazon.
Phones are free. Trackers use a Tack Cloud plan, from $3.89 SGD a month.
Every new Tack comes with a 30-day free trial. 1, 2 and 3-year plans, plus a 3-month plan in the app.
What's new
Every release, in plain English.
A calmer, cleaner OurSphere, with easier ways to keep up with everyone on your map.
- Swipe through your Sphere. Swipe between members on the map, with a compass that points the way to each person.
- Settings, redesigned. Your profile sits up top, and Edit Profile is simpler. Your birthday now saves properly too.
- Alerts that stand out. One-Click Alerts and fall alerts come first, repeat zone alerts are grouped together, and “Mark all read” stays read.
- Easier Tack setup. A smoother Add Tack flow and redesigned Tack settings.
- Your units, your way. Distance and height follow your phone's measurement setting.
Improvements and fixes. Stronger privacy and security, a steadier elevation reading after you calibrate, and many fixes for stability and performance.
A behind-the-scenes update that makes OurSphere lighter on your phone and keeps your details safer.
- Much lighter on storage. We found what was quietly filling up phones and fixed it, and photos no longer pile up over time.
- No more surprise closes. Fixed a crash on iPhone that could happen with lots of photos in your Spheres.
- Your details, kept private. Names and emails stay out of the app's logs, and sign-in shares less about you.
- Back on the map after a permission change. If you switch background location off and on again, tracking now picks up by itself.
- Clearer everyday wording. “Device” is now “Tack” throughout, times like “5 min ago” show in Chinese and Japanese, and sign-in tells you the real reason when it can't let you in.
- Smoother Spheres. Sphere photos save properly, and the Leave and Delete popups are cleaner and say exactly what they'll do.
Our biggest update since v3. OurSphere now has a full dark theme, signs you in faster, and runs steadier and lighter in the background.
- Dark mode, everywhere. A dark theme across the whole app, right down to the map. Pick Light, Dark or Automatic in Settings.
- Faster sign-in. One tap with Sign in with Google, or Sign in with Apple on iPhone.
- Tap-to-open notifications. Tap an alert and go straight to the person or device it is about.
- A clearer Emergency Mode. A refreshed alert screen with a countdown and a bright pin on the map.
- Activity history for every Tack. Recent updates at a glance, with time, battery and signal.
- Never quietly drop off the map. Banners now tell you the moment you are offline or your phone's location is switched off.
Improvements and fixes. Better battery life through adaptive GPS, steadier background tracking, stronger encryption and privacy, fixes to Tracker Health and Firmware Update, and dozens of smaller refinements.
- Stronger privacy and security. An extra layer of protection around your account details, and tightening across the app.
- A little extra polish. Refinements to the app's slide-up panels for a cleaner, calmer feel.
- Behind the scenes. Small tweaks and stability improvements.
- More reliable background tracking. Location keeps updating when the app is closed or the phone restarts, with a last-known position shared when a fresh GPS fix is not available.
- A smoother Location History. The timeline opens on the latest location, fills out the full day properly, and refreshes on its own.
- Real places visited today. A member's card now shows the true number of different places they have been.
- Clearer sphere expiry. Friendlier wording when you create a sphere, and a time dial that will not let you pick a time in the past.
- Smarter elevation guidance. The elevation card now tells a missing sensor apart from a permission that is switched off.
The biggest update yet. A refreshed experience across nearly every screen, with smarter performance throughout.
- A fresh look. Redesigned login, onboarding, settings, notifications, device cards and map screens.
- Notifications, reimagined. Read tracking, clearer icons and mark all as read.
- Safe Zones, rebuilt. Setting up and editing zones around the places you care about is far smoother.
- Smooth device animation. Watch devices move across the map as their location updates.
- A smarter map. Richer zoom, smoother transitions, faster loading and lighter on data.
- Seamless sphere management. Leaving a sphere is now smooth and stable.
Common questions
Questions about the app.
OurSphere is the free location sharing and GPS tracker app from Tack One.
Is the OurSphere app free?
Yes. OurSphere is free on iPhone and Android, and phone-to-phone spheres cost nothing. A Tack Cloud plan is only needed for a Tack GPS tracker, and every tracker comes with 30 days included.
Does OurSphere work without a Tack GPS tracker?
Yes. Create a sphere and invite people. Everyone who joins from their own phone shows on one map. A tracker is only for someone, or something, without a phone.
How many people can join a Sphere?
As many as you like. There is no limit on family members, and phone-to-phone sharing is free.
How often does a location update in OurSphere?
Family members on a phone show live on the map. A Tack tracker reports on a schedule set by its tracking mode and Tack Cloud plan, from every minute in Emergency Mode to every hour in Standard Mode.
Which phones does OurSphere run on?
iOS 15.0 or later and Android 8.0 Oreo or later. One account works on every phone you sign in on.
How do safe zones work in OurSphere?
You pin a four-point boundary around a place such as home or school. When someone crosses it, you get a push alert saying they have entered or have left. Tap the alert to go straight to them.
How far back does OurSphere location history go?
For family members on a phone, the last 72 hours. For Tack trackers, 14 days on a Standard Tack Cloud plan and 90 days on Premium.
Can I share a location with someone temporarily?
Yes. Share a link to a Tack's latest location that expires after 1, 3 or 7 days, or give another OurSphere account ongoing access. Spheres can also be set to expire.
Does OurSphere have a dark mode?
Yes, since v3.0.6. Choose Light, Dark or Automatic in Settings. The map goes dark too.
Free to download
Get everyone on the map.
Start with phones today. Add a Tack when you need one.