Map Calipers1.9 - App Store
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Publisher Description
MapCalipers is a flexible mapping toolkit (built primarily to help you defeat your friends in "Jet Lag: The Game", a Hide and Seek Transit Game!)
The iOS app helps you pinpoint your target’s location within defined boundaries, steadily shrinking the search area using interactive tools like “Radar” and “Thermometer”. Leveraging standard GTFS data, the app overlays precise transit lines and stops onto your play area. Use the built-in analysis features to determine which routes and stops your target might be hiding at, then use the dynamic mapping tools to track them down!
Using GTFS transit data is optional. Note that GTFS data may not be available for all cities and requires prior server-side setup. See the linked blog post at https://joshspicer.com/mapcalipers#self-hosting for more info and for self-hosting instructions.
** Please email me your city's GTFS info if you'd like me to put it on the default sync server for all to enjoy! **
This app is not affiliated with "Jet Lag: The Game Hide and Seek Transit Game" on Nebula.tv and YouTube.
Version History - Performance: Several performance improvements aimed at making transit rendering more performant in cities with large networks
- Feature: Transit (GTFS) data can now be imported directly from a local zip file, or directly from a remote URL - no need to set up a custom docker server!
- Feature: GTFS Editor is linked from the app and lets you create custom MapCalipers-compatible transit maps
- Experiments: Polyline zoom threshold is available under Experiments → Performance and allows changing when transit data is hidden on zoom out (a performance heavy operation)
- Feature: GTFS feed manager to enable multiple feeds at a time. Additionally, a filter can be applied to filter routes/stops from a given feed. 1.9 Apr 28 Thanks for using Calipers! Please send your feedback, feature requests, or stories via the button in app settings. I love seeing how fans use this app around the world!
If you're enjoying the app, please rate it 5 stars
CHANGES
- Adds Google Maps-esque distance measuring tool
- Auto infers city center from GTFS data (better experience for those self-hosting custom cities!)
- On app relaunch, automatically recenter to the center of the play area 1.8 Mar 17 Thank you for all the feedback! If you have feedback on the app, please use the 'Send Feedback' button in settings.
If you find the app useful, please rate it 5 stars!
Fixes and Improvements
- Thermometer tool algorithm tweaks (Thanks Attila!)
- Removed 'backup' algorithm for thermometer that was potentially less precise
- Added a 'center to my location' button
- Added a 'temporarily hide transit' button
- Support using raw coordinates to place tools (Thanks Tobias!)
- Support (best effort) from other mapping apps beyond Google Maps (e.g Apple Maps)
- Add 'Vienna' to the sync server (Thanks Matteo!)
- In-app link to the admin panel for a self-hosted server (when configured)
TIP: When pasting coordinates, try not to select a business (which won't have the coordinates embedded in the URL). Try to instead select a random point on the map (or now, copy the coordinates directly). 1.7 Mar 15 - Relax constraint on radars sizes 1.6 Feb 4 - Fixes restoring from an existing session in the welcome view
- Fixes polygon map recentering after each point is set
- Fixes overlays hiding each time changes are synced from the server 1.5 Jan 26 - Fixes some menus clipping off-screen on smaller devices (like iPhone SE). 1.4 12/26/2025 Fix bugs related to the addition of oslo and trondheim 1.3 11/04/2025 - Change display units from US/Imperial to Metric. (Good luck to any Norwegians taking advantage of this change!)
- Add link to submit feedback 1.2 10/13/2025 - San Francisco and New York city transit data added server side! (Available in all versions)
- Feel free to email me with feedback/city request!
- You can also always 'self-host' the server for free for full customization freedom (https://joshspicer.com/mapcalipers#self-hosting)
- Tweaks/Polish to the "Setup New Game Area" flow 1.1 10/08/2025 1.0 08/07/2025
About Map Calipers
The company that develops Map Calipers is Joshua Spicer. The latest version released by its developer is 1.9.
To install Map Calipers on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-15 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Map Calipers as malware if the download link is broken.
How to install Map Calipers on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Map Calipers is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Map Calipers is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 1.9
posted on 2026-10-15
Version History - Performance: Several performance improvements aimed at making transit rendering more performant in cities with large networks
- Feature: Transit (GTFS) data can now be imported directly from a local zip file, or directly from a remote URL - no need to set up a custom docker server!
- Feature: GTFS Editor is linked from the app and lets you create custom MapCalipers-compatible transit maps
- Experiments: Polyline zoom threshold is available under Experiments → Performance and allows changing when transit data is hidden on zoom out (a performance heavy operation)
- Feature: GTFS feed manager to enable multiple feeds at a time. Additionally, a filter can be applied to filter routes/stops from a given feed. 1.9 Apr 28 Thanks for using Calipers! Please send your feedback, feature requests, or stories via the button in app settings. I love seeing how fans use this app around the world!
If you're enjoying the app, please rate it 5 stars
CHANGES
- Adds Google Maps-esque distance measuring tool
- Auto infers city center from GTFS data (better experience for those self-hosting custom cities!)
- On app relaunch, automatically recenter to the center of the play area 1.8 Mar 17 Thank you for all the feedback! If you have feedback on the app, please use the 'Send Feedback' button in settings.
If you find the app useful, please rate it 5 stars!
Fixes and Improvements
- Thermometer tool algorithm tweaks (Thanks Attila!)
- Removed 'backup' algorithm for thermometer that was potentially less precise
- Added a 'center to my location' button
- Added a 'temporarily hide transit' button
- Support using raw coordinates to place tools (Thanks Tobias!)
- Support (best effort) from other mapping apps beyond Google Maps (e.g Apple Maps)
- Add 'Vienna' to the sync server (Thanks Matteo!)
- In-app link to the admin panel for a self-hosted server (when configured)
TIP: When pasting coordinates, try not to select a business (which won't have the coordinates embedded in the URL). Try to instead select a random point on the map (or now, copy the coordinates directly). 1.7 Mar 15 - Relax constraint on radars sizes 1.6 Feb 4 - Fixes restoring from an existing session in the welcome view
- Fixes polygon map recentering after each point is set
- Fixes overlays hiding each time changes are synced from the server 1.5 Jan 26 - Fixes some menus clipping off-screen on smaller devices (like iPhone SE). 1.4 12/26/2025 Fix bugs related to the addition of oslo and trondheim 1.3 11/04/2025 - Change display units from US/Imperial to Metric. (Good luck to any Norwegians taking advantage of this change!)
- Add link to submit feedback 1.2 10/13/2025 - San Francisco and New York city transit data added server side! (Available in all versions)
- Feel free to email me with feedback/city request!
- You can also always 'self-host' the server for free for full customization freedom (https://joshspicer.com/mapcalipers#self-hosting)
- Tweaks/Polish to the "Setup New Game Area" flow 1.1 10/08/2025 1.0 08/07/2025
Disclaimer
Official App Store Link
We do not host Map Calipers on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Apple and passed their terms and conditions to be listed there. We recommend caution when installing it.
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