Best Cstth Apps

224+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated May 2026

From beginner-friendly picks to power-user tools, our cstth list covers 224+ iPhone apps updated through May 2026. Compare ratings, prices, and screenshots in one place.

Compare top Cstth Apps (May 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1GPS TracksGPS TracksFree4.7★ (17K)NoYesAug 2026
2Speedometer 55 GPS Speed & HUDSpeedometer 55 GPS Speed & HUDFree4.8★ (64K)NoNoAug 2026
3Speedometer SimpleSpeedometer SimpleFree4.7★ (123K)YesYesAug 2026
4Avenza Maps: Offline MappingAvenza Maps: Offline MappingFree4.8★ (127K)NoYesAug 2026
5CSTTHCSTTHFreeNoMay 2026
6GPS Fields Area Measure MapGPS Fields Area Measure MapFree4.6★ (12K)YesYesAug 2026
7MilGPSMilGPS$12.994.8★ (5.5K)NoNoAug 2026
8iNavX: Marine NavigationiNavX: Marine NavigationFree4.8★ (21K)YesYesAug 2026

Top Picks for Cstth

GPS Tracks#1

GPS Tracks by David Morneault

GPS Tracker and Offline Maps
Editor's Choice
🗺️ Navigation
4.7😊(17K ratings)
FreeIn-App Purchases
#79in Navigation
GPS Tracks screenshot 1
GPS Tracks screenshot 2
GPS Tracks screenshot 3
GPS Tracks screenshot 4
GPS Tracks screenshot 5
GPS Tracks screenshot 6

This app allows users to track outdoor activities like hiking, biking, and running. It enables navigation to waypoints, storage of favorite destinations, and offers advanced features for route planning and data export with a subscription.

What We Love

  • 🚀 Accurate GPS tracking
  • 👍 Intuitive and easy to use
  • 💡 Versatile features for various activities
  • 🚀 Responsive customer support

Room to Improve

  • 🐛 Occasional crashes or glitches
  • 🔋 Battery drain issues
  • 🔒 Concerns about privacy and data security
Speedometer 55 GPS Speed & HUD#2

Speedometer 55 GPS Speed & HUD by Stanislav Dvoychenko

Limit Alert,Black Box,Trip log
Strong Contender
🗺️ Navigation
4.8😊(64K ratings)
Free
Speedometer 55 GPS Speed & HUD screenshot 1
Speedometer 55 GPS Speed & HUD screenshot 2
Speedometer 55 GPS Speed & HUD screenshot 3
Speedometer 55 GPS Speed & HUD screenshot 4
Speedometer 55 GPS Speed & HUD screenshot 5
Speedometer 55 GPS Speed & HUD screenshot 6

This app functions as a sophisticated speedometer, alerting you to speed limit violations with visual and auditory cues. It also provides location sharing, altitude readings, and a GPS black box for trip data. Calculate mileage, costs, and fuel consumption for your journeys.

What We Love

  • 🚀 Accurate GPS speed
  • 👍 Useful features (trip tracking, altimeter, etc.)
  • 🔒 No ads or subscriptions required
  • 👍 Easy to use and reliable

Room to Improve

  • 🐛 Occasional glitches or bugs
  • 🔋 Can drain battery quickly
  • 🚧 Confusing UI or navigation for some users
Speedometer Simple#3

Speedometer Simple by WATT APPS

Accurate GPS speed tracker
Worth Considering
🗺️ Navigation
4.7😊(123K ratings)
FreeAdsIn-App Purchases
#15in Navigation
Speedometer Simple screenshot 1
Speedometer Simple screenshot 2
Speedometer Simple screenshot 3
Speedometer Simple screenshot 4
Speedometer Simple screenshot 5
Speedometer Simple screenshot 6

This app uses your phone's GPS to display your current speed accurately. It supports multiple units, shows traveled distance, and offers optional city names and a compass. You can also record trip statistics like maximum speed and distance.

What We Love

  • 👍 Accurate speedometer
  • 🚀 Helpful for vehicles without built-in speedometers
  • 💡 Useful for tracking mileage and maintenance
  • 👍 Clean and simple interface

Room to Improve

  • 🐛 Occasional GPS signal issues
  • 🐛 Inconsistent data synchronization
  • 🐛 Inaccurate location/city information

More Cstth apps to explore

4
Avenza Maps: Offline Mapping
Avenza Maps: Offline Mapping
Avenza Maps: Offline Mapping
GPS Navigation & Trail Maps
Free

Navigate any terrain with offline GPS maps, even without cell service. Explore a vast Map Store for hiking, biking, and travel, or import your own custom maps. Record tracks, add notes, and identify your location precisely.

Offline GPS navigationReal-time GPS position and directionRecord GPS tracks
🗺️ Navigation
(127K)
free with in-app purchases
5
CSTTH
CSTTH
CSTTH
by Anulee Phromthasan
Free
🛍️ Shopping
(0)
6
GPS Fields Area Measure Map
GPS Fields Area Measure Map
GPS Fields Area Measure Map
Distance, acres, boundaries
Free

Accurately measure distance, perimeter, and area using GPS, even offline. Mark points with notes and photos for field scouting, land inspection, or issue logging. Supports various export formats and custom map layers.

GPS walking/driving measurementManual point editingAdd notes, photos, and custom objects
🔧 Utilities
(12K)
free with in-app purchases
7
MilGPS
MilGPS
MilGPS
Pro MGRS USNG GPS for Land Nav
$12.99

This field navigation tool displays your location and waypoints on customizable screens. It supports multiple coordinate systems and map datums, and allows for waypoint import/export. Offline map support is available.

MGRS/USNG/UTM/Lat/Lon displayWaypoint creation and organizationMap visualization with grid lines
🗺️ Navigation
(5.5K)
paid
8
iNavX: Marine Navigation
iNavX: Marine Navigation
iNavX: Marine Navigation
Sailing & Boating Chartplotter
Free

This app provides comprehensive marine navigation tools, including worldwide chart coverage, weather forecasts, and AIS integration. It allows users to plan routes, track their position, and connect with onboard instruments for a complete boating experience.

Worldwide marine chart accessReal-time GPS plottingWaypoint and route management
🗺️ Navigation
(21K)
free with in-app purchases
9
Speedometer»
Speedometer»
Speedometer»
Speedometer with large display
Free

This application displays your current speed in miles per hour, kilometers per hour, or knots. It features a large, clear display with Retina support for optimal visibility. Accuracy is enhanced by adjusting indicator transparency.

Displays speed in mph, km/h, knotsLarge, clear indicatorsRetina display support
🗺️ Navigation
(49K)
ad-supported
10
Decibel : dB sound level meter
Decibel : dB sound level meter
Decibel : dB sound level meter
Audio noise Spectrum Analyzer
Free

Transform your device into a professional sound level meter and audio analyzer. Measure ambient noise, monitor decibel levels, and visualize sound frequencies in real time. It also offers advanced sleep tracking with sound recognition to identify disruptions.

Real-time decibel (dB) sound level monitoringIntegrated Spectrum Analyzer (FFT, spectrogram)Sleep tracking with sound recognition
🔧 Utilities
(36K)
freemium
11
Topo Maps+: Topographic Maps
Topo Maps+: Topographic Maps
Topo Maps+: Topographic Maps
Offline Maps & GPS Navigation
Free

Plan and execute backcountry adventures with offline topographic maps and GPS navigation. Features include route building, waypoints, land boundaries, and on-trail tools. Integrates with Apple Watch and CarPlay for seamless outdoor exploration.

Offline topographic mapsSmart route buildingWaypoints and proximity alerts
🗺️ Navigation
(9.3K)
freemium
12
Waze Navigation & Live Traffic
Waze Navigation & Live Traffic
Waze Navigation & Live Traffic
Avoid traffic, police, hazards
Free

Navigate your commute with real-time traffic updates and alerts from a community of drivers. Get accurate ETAs, avoid hazards, and find gas stations and parking. Integrates with your car's display for seamless use.

Live traffic updatesReal-time safety alertsAccurate ETAs
🗺️ Navigation
(3.2M)
ad-supported
13
Mgrs & Utm Map
Mgrs & Utm Map
Mgrs & Utm Map
by Vahid Cataltas
Free

Navigate the outdoors with precision using GPS and multiple coordinate systems. Ideal for military, hikers, and outdoor enthusiasts, it displays your accurate position on various map layers and supports KML import/export.

GPS, GALILEO, GLONASS supportAccurate position displayMultiple map layers
🗺️ Navigation
(2.5K)
free with in-app purchases
14
Opensignal Speed Test Ad Free
Opensignal Speed Test Ad Free
Opensignal Speed Test Ad Free
5G 4G & WiFi Signal Speed Test
Free

Measure your mobile network performance with detailed speed tests for download, upload, and latency across 3G, 4G/LTE, 5G, and WiFi. Analyze video streaming quality and compare network coverage in your area to find the best provider.

Download, upload, and latency speed testsVideo streaming quality analysisNetwork coverage comparison
🔧 Utilities
(18K)
free
15
Coordinates – GPS Converter
Coordinates – GPS Converter
Coordinates – GPS Converter
Lat/Lon to UTM, MGRS, and more
Free

This app is a versatile tool for converting and managing geographic coordinates. It supports numerous global formats and datums, allowing users to view, input, and save locations with rich details. Ideal for professionals and outdoor enthusiasts needing precise location data.

Coordinate conversion (UTM, MGRS, Georef, etc.)Batch conversion of multiple coordinatesAdd notes, photos, and media to saved locations
🗺️ Navigation
(6.5K)
free with in-app purchases
16
Sygic Truck & RV Navigation
Sygic Truck & RV Navigation
Sygic Truck & RV Navigation
Offline maps, GPS & CarPlay
Free

Navigate large vehicles with intelligent routing tailored to your truck, RV, or bus specifications. Enjoy offline 3D maps, real-time traffic, and speed camera warnings for a safe and efficient journey. Access truck-specific points of interest and detailed vehicle settings.

Customized routes for vehicle type, size, and weightAdvanced vehicle settings including HAZMAT3D offline maps with free updates
🗺️ Navigation
(2.9K)
free with in-app purchases
17
Phone Tracker - GPS Location
Phone Tracker - GPS Location
Phone Tracker - GPS Location
Locate & Track by number
Free

This app allows real-time location tracking of family and friends on a private map. Create groups, set up geofence zones for arrival/departure alerts, and utilize an emergency SOS function for added security. It also includes a 'find my device' feature.

Real-time family and friend trackingShared private mapSmart Circles for group location sharing
🌟 Lifestyle
(12K)
free with in-app purchases
18
Wavve Boating: GPS, Map, Chart
Wavve Boating: GPS, Map, Chart
Wavve Boating: GPS, Map, Chart
Marine Navigation, Depth, Tide
Free

Navigate waterways with detailed nautical charts, tide predictions, and weather forecasts. Connect with a community of boaters to share points of interest and track friends on the water. Enjoy simplified GPS navigation tailored to your boat's draft.

Simple GPS navigationCustomizable nautical chartsCommunity points of interest
🗺️ Navigation
(6K)
free with in-app purchases
19
GPS Speedometer, Speed Tracker
GPS Speedometer, Speed Tracker
GPS Speedometer, Speed Tracker
Mileage Tracker for Car & Bike
Free

This app accurately tracks your real-time speed, distance, and trip data using GPS. It offers features like a digital odometer, HUD mode, and customizable speed alerts, even working offline. It's designed for drivers, cyclists, and anyone needing precise travel metrics.

Real-time GPS speed trackingDigital odometer for trip distanceHUD mode for windshield display
🗺️ Navigation
(25K)
free with in-app purchases
20
TomTom GO Expert: Truck GPS
TomTom GO Expert: Truck GPS
TomTom GO Expert: Truck GPS
Satnav, GPS, Traffic & CarPlay
Free

Reliable truck navigation with custom routing based on vehicle dimensions, cargo, and fuel type. Avoid traffic, find truck stops, and receive real-time alerts for a smoother, safer journey.

Custom truck routingReal-time traffic avoidanceVehicle dimension and cargo input
🗺️ Navigation
(2.5K)
free with in-app purchases

FAQ about Cstth

What are the best cstth apps for iPhone?
GPS Tracks tops our cstth apps ranking as of May 2026, with a 4.7-star average from 17K App Store ratings, and it's free to download.
Yes — 19 of the top cstth apps we rank are free to download, including GPS Tracks and Speedometer 55 GPS Speed & HUD.
GPS Tracks has no ads and offers in-app purchases, according to its App Store listing as of May 2026.
We track 224+ cstth apps on the iOS App Store as of May 2026, ranked by rating, recency, and analysis of real user reviews.
GPS Tracks is a GPS tracker and offline map application designed for outdoor activities. It allows you to record your routes for activities like hiking, biking, and running, navigate to specific waypoints, and store your favorite destinations. The app is ideal for exploring without limits, even in areas with no cellular service.
Key features include tracking various outdoor activities, navigating to waypoints with a compass guide, and saving favorite locations. With a subscription, users gain access to offline map downloads, multiple map types, advanced export options (GPX, KML, CSV), real-time track sharing, and an Apple Watch app for direct activity tracking.