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GPS OS Grid Reference

Tomstrails.com
Great Britain and Ireland
Open in App Store ↗
US flag US
GBen-GBIEen-GBUSen-USINen-GBTRen-GBAUen-AUNPen-GBNGen-GBHKzh-Hant-HKKHen-GBNLnlBEen-GBCLes-MXESes-ESGHen-GBJPjaMYen-GBPKen-GBTZen-GBBHen-GBBRpt-BRCAen-CACHde-CHCNzh-Hans-CNCOes-MXCRes-MXDOes-MXECes-MXEGen-GBFRfr-FRIDen-GBILen-GBKRkoLKen-GBMXes-MXNZen-AUOMen-GBPEes-MXPLen-GBPTpt-PTROen-GBSAen-GBSGen-GBTHen-GBTTen-GBZAen-GBAEen-GBAFen-GBAGen-GBAIen-GBALen-GBAMen-GBAOen-GBARes-MXATde-DEAZen-GBBAen-GBBBen-GBBFen-GBBGen-GBBJen-GBBMen-GBBNen-GBBOes-MXBSen-GBBTen-GBBWen-GBBYen-GBBZen-GBCDen-GBCGen-GBCIfr-FRCMfr-FRCVen-GBCYen-GBCZen-GBDEde-DEDKen-GBDMen-GBDZen-GBEEen-GBFIen-GBFJen-GBFMen-GBGAfr-FRGDen-GBGEen-GBGMen-GBGRen-GBGTes-MXGWen-GBGYen-GBHNes-MXHRen-GBHUen-GBIQen-GBISen-GBITitJMen-GBJOen-GBKEen-GBKGen-GBKNen-GBKWen-GBKYen-GBKZen-GBLAen-GBLBen-GBLCen-GBLRen-GBLTen-GBLUen-GBLVen-GBLYen-GBMAen-GBMDen-GBMEen-GBMGen-GBMKen-GBMLen-GBMMen-GBMNen-GBMOzh-Hant-HKMRen-GBMSen-GBMTen-GBMUen-GBMVen-GBMWen-GBMZen-GBNAen-GBNEen-GBNIes-MXNOen-GBNRen-GBPAes-MXPGen-GBPHen-GBPWen-GBPYes-MXQAen-GBRSen-GBRUruRWen-GBSBen-GBSCen-GBSEsvSIen-GBSKen-GBSLen-GBSNen-GBSRen-GBSTen-GBSVes-MXSZen-GBTCen-GBTDen-GBTJen-GBTMen-GBTNen-GBTOen-GBTWzh-Hant-TWUAen-GBUGen-GBUYen-GBUZen-GBVCen-GBVEes-MXVGen-GBVNen-GBVUen-GBXKen-GBYEen-GBZMen-GBZWen-GB
175 of 175 storefronts
Content in en-US
17 Ratings
4.4
★★★★★
Age Rating
4+
Years
Developer
Tomstrails.com
Language
EN
Size
11.0
MB

Information

Apple ID993436655
Bundle IDcom.tomstrails.osgb
SellerSeller
Min iOS18.0
Min macOS15.0
Device familieswatch, iphone
Released2015-05-30
Copyright© Tomstrails
WebsiteLink ↗
Privacy policyLink ↗

Preview 2 platforms

iPhone 5 images

iPhone screenshot
iPhone screenshot
iPhone screenshot
iPhone screenshot
iPhone screenshot

Apple Watch 1 image

Apple Watch screenshot

What’s New Version 3.0.3

Improvements to the interface for iOS 26.

Description

GPS OS provides a fast and accurate way to locate your position on an Ordnance Survey map, both in Great Britain and Ireland. • No phone signal required - works in the most remote locations. • OSTN15 transform data for high conversion accuracy (better than 1m). • 6, 8 and 10 figure grid references. • A large, clear, high contrast display ensures you can easily read your position in any light conditions. • Optimises the frequency of position updates depending on battery charge and speed of travel to make sure you can always make calls at the end of the day. • Create waypoints from a map, your current location or manually enter Ordnance Survey coordinates. • Explore waypoints and get directions in Apple Maps. • Share waypoints with other apps or users. • No adverts. Includes OSTN15 transform data licensed with permission. Copyright and database rights Ordnance Survey Limited 2016, ©Crown copyright and database rights Land and Property Services 2016 and/or ©Ordnance Survey Ireland, 2016. All rights reserved.

In-App Purchases US pricing

Premium Features Subscription
Yearly 7-day free trial$5.99

Capabilities

In-App Purchases

Accessibility

ipadiphonemacrealityDevicetvoswatch

Version history 23 versions

Build 881160983v3.0.32026-05-17 07:45:58
Improvements to the interface for iOS 26.
Build 879881257v3.0.22025-11-19 08:01:11
Support for iOS 26.
Build 876236943v3.0.12025-07-09 14:18:38
Create, edit and organize Ordnance Survey waypoints. Share with other apps and users.
Build 876072720v3.0.02025-07-08 08:01:38
Create, edit and organize Ordnance Survey waypoints. Share with other apps and users.
Build 843610711v2.0.12021-08-17 19:24:34
Apple Watch support.
Build 843312384v2.0.02021-08-14 15:48:22
Apple Watch support.
Build 839433855v1.802020-12-03 05:59:47
Added iOS 14 precise location support. Optimised for new device sizes.
Build 835095636v1.712020-07-26 15:43:46
Minor UI improvements to the Settings page.
Build 832719711v1.702019-09-16 17:09:21
Dark mode support.
Build 828593794v1.652018-09-14 17:44:07
Optimised for additional phone sizes.
Build 826942866v1.642018-05-07 05:47:39
Minor internal improvements.
Build 826097166v1.622018-02-26 18:17:44
Improved terminology.
Build 825800793v1.612018-01-29 22:04:43
Minor UI improvements. To make it easier to tell a friend about the app, you can do so from the settings page:-)
Build 825261100v1.602017-12-13 10:50:40
Now provides 6, 8 and 10 figure grid references. Incorporates OSTN15 transform data. If you find this app useful, please consider writing a review so others find it too.
Build 824023445v1.532017-10-15 21:40:21
Messages updated to improve clarity.
Build 823787754v1.522017-09-27 20:12:20
iOS 11 support.
Build 821804969v1.512017-04-19 07:34:06
Feedback & product updates now available with Twitter.
Build 820828652v1.52017-02-09 20:50:17
Minor UI improvements.
Build 819531909v1.42016-10-31 22:51:42
・Grid references may now be shown as 6 or 8 figures. ・Share formats may now be selected at the point of sharing rather than in Settings. If you find this app useful, please consider purchasing the Feature Pack in Settings and support future development. Thank you.
Build 817092842v1.32016-04-18 17:55:48
Updated for iOS 9
Build 812892935v1.22015-07-24 02:04:04
Improved messaging. If you love our app., please take a moment to update your Appstore review. Your great reviews enable us to keep making free updates.
Build 812555878v1.12015-06-28 06:12:00
This versions adds premium features available with an In-App Purchase. See the description for more details. If you love our app., please take a moment to update your Appstore review. Your great reviews enable us to keep making free updates.
Build 812391872v1.02015-05-30 19:46:56
Premium Features

Price history by region

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Availability 175 of 175 storefronts

RegionLanguagePriceRatingsAvgVersion
GB en-GBFree6.4k4.73.0.3
IE en-GBFree1254.83.0.3
US en-USFree174.43.0.3
IN en-GBFree124.23.0.3
TR en-GBFree64.03.0.3
AU en-AUFree54.63.0.3
NP en-GBFree54.43.0.3
NG en-GBFree45.03.0.3
HK zh-Hant-HKFree35.03.0.3
KH en-GBFree35.03.0.3
NL nlFree35.03.0.3
BE en-GBFree25.03.0.3
CL es-MXFree25.03.0.3
ES es-ESFree25.03.0.3
GH en-GBFree25.03.0.3
JP jaFree25.03.0.3
MY en-GBFree24.53.0.3
PK en-GBFree21.53.0.3
TZ en-GBFree25.03.0.3
BH en-GBFree15.03.0.3
BR pt-BRFree13.03.0.3
CA en-CAFree11.03.0.3
CH de-CHFree15.03.0.3
CN zh-Hans-CNFree15.03.0.3
CO es-MXFree14.03.0.3
CR es-MXFree15.03.0.3
DO es-MXFree14.03.0.3
EC es-MXFree15.03.0.3
EG en-GBFree15.03.0.3
FR fr-FRFree15.03.0.3
ID en-GBFree14.03.0.3
IL en-GBFree15.03.0.3
KR koFree15.03.0.3
LK en-GBFree15.03.0.3
MX es-MXFree14.03.0.3
NZ en-AUFree15.03.0.3
OM en-GBFree15.03.0.3
PE es-MXFree15.03.0.3
PL en-GBFree14.03.0.3
PT pt-PTFree15.03.0.3
RO en-GBFree15.03.0.3
SA en-GBFree15.03.0.3
SG en-GBFree15.03.0.3
TH en-GBFree14.03.0.3
TT en-GBFree14.03.0.3
ZA en-GBFree15.03.0.3
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Change log 27 changes · US

✎
releaseNotes updated
Improvements to the interface for iOS 26.
✎
description updated
GPS OS provides a fast and accurate way to locate your position on an Ordnance Survey map, both in Great Britain and Ireland. • No phone signal required - works
✎
subtitle updated
Great Britain and Ireland
✎
name updated
GPS OS Grid Reference
◆
Version 3.0.3 released
Improvements to the interface for iOS 26.
◆
Version 3.0.2 released
Support for iOS 26.
◆
Version 3.0.1 released
Create, edit and organize Ordnance Survey waypoints. Share with other apps and users.
◆
Version 3.0.0 released
Create, edit and organize Ordnance Survey waypoints. Share with other apps and users.
◆
Version 2.0.1 released
Apple Watch support.
◆
Version 2.0.0 released
Apple Watch support.
◆
Version 1.80 released
Added iOS 14 precise location support. Optimised for new device sizes.
◆
Version 1.71 released
Minor UI improvements to the Settings page.
◆
Version 1.70 released
Dark mode support.
◆
Version 1.65 released
Optimised for additional phone sizes.
◆
Version 1.64 released
Minor internal improvements.
◆
Version 1.62 released
Improved terminology.
◆
Version 1.61 released
Minor UI improvements. To make it easier to tell a friend about the app, you can do so from the settings page:-)
◆
Version 1.60 released
Now provides 6, 8 and 10 figure grid references. Incorporates OSTN15 transform data. If you find this app useful, please consider writing a review so others find it too.
◆
Version 1.53 released
Messages updated to improve clarity.
◆
Version 1.52 released
iOS 11 support.
◆
Version 1.51 released
Feedback & product updates now available with Twitter.
◆
Version 1.5 released
Minor UI improvements.
◆
Version 1.4 released
・Grid references may now be shown as 6 or 8 figures. ・Share formats may now be selected at the point of sharing rather than in Settings. If you find this app useful, please consider purchasing the Feature Pack in Settings and support future
◆
Version 1.3 released
Updated for iOS 9
◆
Version 1.2 released
Improved messaging. If you love our app., please take a moment to update your Appstore review. Your great reviews enable us to keep making free updates.
◆
Version 1.1 released
This versions adds premium features available with an In-App Purchase. See the description for more details. If you love our app., please take a moment to update your Appstore review. Your great reviews enable us to keep making free updates
◆
Version 1.0 released
expanded screenshot