Deep Parking Recovery
Track+ helps you recover your route through multi-level garages and other weak-signal spaces where GPS fades. Use step tracking, visual motion, and checkpoints to return to your vehicle with practical, on-device guidance.
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Offline-first spatial toolkit for Android and Wear OS
SIMT
Plan. Track. Measure.
An offline-first spatial toolkit for Android and Wear OS. Use one app to plan targets, recover your car underground, share live position over local Wi-Fi, measure with AR, and explore planets and satellites from the same screen.
Offline-first
Private by default
Android + Wear OS
Free, no ads
Available now on Android 9+ with Wear OS companion support.
What People Use SIMT For
From underground garages to open water and dark-sky nights, SIMT stays useful where ordinary map apps stop.
Marine Backup
When you are offshore or outside normal coverage, SIMT can still orient you with offline directions to capes, lighthouses, and the nearest land points. It works as a reliable backup when ordinary map apps depend too heavily on connectivity.
Event Coordination
Link+ helps small groups stay aware of each other across festivals, stadiums, campuses, and other crowded venues. Share live position over the same local network without relying on mobile data.
Measure on Site
Use AR measurement for quick distance and area checks, then switch to calibrated on-screen tools and leveling modes when you need a second reference. It fits light site work, furniture planning, and everyday layout decisions.
Sky Tracking
Follow planets, Moon phases, satellites, and celestial targets from the same app you use on the ground. SIMT calculates positions on device, so the astronomy tools remain useful even when you are offline.
Accessible Guidance
SIMT supports orientation and Qibla workflows with precise bearings, haptic feedback, and TalkBack-friendly screen reader behavior. The goal is clearer, more independent guidance without extra setup.
Share, Sync, and Keep Your Bearings
SIMT is not only for solo navigation. It can link nearby phones, sync targets to Wear OS, and keep your data portable without turning into a cloud-first product.
Link+ on local Wi-Fi
Share live position with people on the same Wi-Fi or LAN, even when there is no internet connection.
Wear OS companion
Sync targets to your watch and keep navigating from your wrist when you do not want to hold the phone.
Backup when you choose
Keep data local by default, then back up targets, images, and settings to Google Drive only when you want to.
Offline fallbacks built in
If Google Maps or online geocoding are unavailable, SIMT falls back to its own offline engines instead of leaving you stuck.
See SIMT in Action
Compass views, map planning, AR tools, and spatial overlays live together in one Android experience instead of being spread across multiple apps.
Engineered for Real-World Accuracy
SIMT is built on real sensor fusion, positioning, and orbital math so it can stay useful indoors, outdoors, underground, offshore, and under open sky.
UKF
Unscented Kalman Filter
GNSS
Global Navigation Satellite System
Accurate offline positioning
SGP4
Simplified General Perturbations
Satellite orbit propagation
VSOP87
Variations Séculaires des Orbites
Precise planetary positions
WMM
World Magnetic Model
True North mapping
PDR
Pedestrian Dead Reckoning
Indoor navigation & tracking
VIO
Visual Inertial Odometry
AR + IMU fusion
PBR
Phase-Based Ranging
Precise Distance Measurement
SIMT combines WMM, GNSS processing, VIO, PDR, UKF, and orbital models instead of relying on a basic compass layer alone.
The result is a toolkit that can adapt to the environment you are actually in, whether that is a parking garage, a hiking route, a crowded venue, a job site, or a dark-sky observing session.
What You Get in One App
SIMT started as a compass app. It now works more like an offline spatial toolkit that covers planning, tracking, measuring, and sky exploration together.
Plan with targets and maps
Create targets from maps, coordinates, photos, QR codes, notes, tags, hours, and predefined landmarks with online and offline map support.
Track where GPS fades
Track+ fuses camera motion, step detection, sensors, and checkpoints to recover position in underground parking and other weak-signal areas.
Measure and align
Use Ray+ for AR distance and area measurement, Measure for calibrated on-screen sizing, and Plumb Bob for leveling and pitch and roll work.
Explore the sky
Track planets, Moon phases, satellites with TLE data, deep-sky targets, and the live Orrery without depending on cloud astronomy services.
Private by default
Targets, images, and settings stay on your device first. Optional Google Drive backup and restore is there if you decide you want portability.
Free and ad-free
No ads, no premium wall, and no need to switch between separate apps just to plan, track, measure, and navigate.
Choose the Experience That Fits You
SIMT can start in different roles so the app feels closer to why you opened it, whether you are exploring, building, traveling, or watching the sky.
Explorer
Focus on discovery, parking recovery, nearby places, map planning, and target management.
Builder
Keep measurement, leveling, visual references, and layout work within reach on one device.
Traveler
Plan trips, share position locally, sync to Wear OS, and keep targets portable with optional backup.
Astronomer
Jump straight into planets, satellites, Moon phases, celestial targets, and the live Orrery.
Carry One App Instead of Four
SIMT combines a precision compass, offline planning tools, underground recovery, AR measurement, local device linking, and astronomy tracking in one privacy-first Android app.
Free, no ads, and available now on Android with Wear OS support.
Android 9+ phone app with Wear OS companion support.
Frequently Asked Questions
What is SIMT?
SIMT is an offline-first spatial toolkit for Android and Wear OS. It combines precision compass navigation, target planning, indoor and weak-signal tracking, measurement tools, and astronomy features in one app.
Does SIMT work offline?
Yes. Compass views, target tracking, offline geocoding, offline map fallback, astronomy calculations, and many planning tools work without internet. Online maps, weather, and cloud backup are optional.
Can SIMT help me indoors or underground?
Yes. Track+ combines visual tracking, step detection, sensors, and checkpoints to help recover your position in places like underground parking or other weak-GPS environments.
Can I measure things with SIMT?
Yes. Ray+ handles AR distance and area measurement on supported devices, while Measure and Plumb Bob cover on-screen measurements and leveling tasks.
Can I share or sync with other devices?
Yes. Link+ shares live location over the same local network, and the Wear OS companion syncs targets and lets you navigate from your wrist.
Does SIMT support astronomy, satellites, or Qibla?
Yes. SIMT can track planets, Moon phases, satellites with TLE data, celestial targets, and a live Orrery view, and it also includes Qibla direction features.
Is my data private with SIMT?
Yes. SIMT keeps targets, images, and settings on your device by default. Optional Google Drive backup is available when you choose to use it.
What devices are compatible with SIMT?
SIMT runs on Android 9.0 or later and includes Wear OS support. Some tools, such as AR measurement or high-precision GNSS, depend on your device hardware.
Is SIMT free to use?
Yes. SIMT is free to use and has no ads.
Does SIMT support accessibility?
Yes. SIMT includes haptic feedback and TalkBack-friendly screen reader support to make direction-finding more accessible.