Apps

All 26 apps from ObjectGraph, grouped by what they are for.

Maps and GPS8

GPX Explore on the Mac: the Mist Trail in Yosemite colored by grade past Vernal Fall, with its elevation profile climbing to 5,981 ft

GPX Explore

See any GPX in 3D, ride it turn by turn, record and draw tracks. Mac, iPhone, iPad. Free to view and record; 3D, riding and editing with Pro.

KML Explore on the Mac: Oriole Park at Camden Yards on the hybrid map, the playing field outlined with the infield cut out

KML Explore

Open KML and KMZ maps: layers, styles, descriptions and attributes, measured. Mac, iPhone, iPad. Free to view; editing and export with Pro.

Geo Measure on the Mac: LaGuardia Airport outlined on a satellite map with its area in acres

Geo Measure

Any area, any distance, along roads too, or walk the boundary. iPhone, iPad, Mac and Vision Pro. Free; layers, reports and walking with Pro.

Mount Rainier in 3D in Geo Elevation: the volcano as a block of real terrain in relief, colored by the rocks of the geologic map

Geo Elevation

Any place as real terrain in relief, with its rocks and a plate to print. On Vision Pro, on your table and at true size. Free, with Pro.

Geo Tracker recording a route

Geo Tracker

Record a walk, run or ride, put photos on the route and follow your line back. Keep it all as a GPX file. iPhone and iPad.

A workout swiped aside in the WorkoutGPX list, showing GPX Explore and Share GPX buttons, above a walk with the outline of its route

WorkoutGPX

Export Apple Health workouts as GPX: with a swipe, many at once or from Shortcuts, your start and end hidden if you like

Geo Measure for Mac measuring an area on a map

Geo Measure Mac

Any area. Any distance. On a map. The Mac-only edition of Geo Measure, since 2013. Free, with Pro

Geo Elevation for Mac drawing the elevation profile of a path

Geo Elevation Mac

Any route. Its elevation profile. And the terrain in 3D. The Mac-only edition of Geo Elevation, sold since 2016

Science and sensors4

iSeismometer for Mac receiving three devices

iSeismometer

Your phone is a seismograph. iPhone, iPad and a Mac receiver

Seismica on the Mac: a globe with recent earthquakes as magnitude markers, active fault lines in red and the event list beside it

Seismica

Replay great earthquakes. Search the USGS catalog. Keep a study with your notes. iPhone, iPad and Mac

The Train of Four app icon beside the words: the TOF ratio, T4/T1, from the iPhone’s accelerometer, published in the Canadian Journal of Anesthesia, 2026

Train of Four

The TOF ratio, T4/T1, from the iPhone’s accelerometer. Published in the Canadian Journal of Anesthesia

Age Test: the aluminum knob playing 16.0 kHz, a live spectrum with a peak at 17.5 kHz, and How high? showing 16 kHz

Age Test

A tone generator for the science class: any pitch from 20 Hz to 22 kHz, a live spectrum, and how high you hear. iPhone and iPad

Everyday tools3

The MyFoodAnalysis sandwich logo beside its Food Finder: every food as a line across the nutrients, with the high-fiber foods highlighted

MyFoodAnalysis

What’s really in your food: nutrition for 455,000 foods from USDA, and a food log for iPhone and iPad

TypingKit keyboard after a run: slower keys shaded amber, missed keys outlined in red

TypingKit

Typing practice that finds your slow keys, on the web and on the Mac

Catalyst screenshot

Catalyst

Every AI, One Workspace — Chat, Workflows & Mini Apps

Games and classics5

iSameGame: a board of colored spheres on iPad, two selected

iSameGame

SameGame in 3D: clear the spheres, share any board as a code, daily boards with leaderboards

FocusQ: three boards of numbered bubbles, level 10 with only sixes and nines and 1.70 seconds left, today’s board, and a Color Mix board

FocusQ

Fifteen numbered bubbles: tap them in order before the clock runs out. Ten levels, a board a day, and the last level is evil. iPhone and iPad

Cat Piano on an iPhone held sideways: twenty-four ivory keys with a chord pressed, the tabby kitten in the bar above

Cat Piano

A piano that meows. Three real cats on the keys, ten fingers at once, and your own recording played in tune. iPhone and iPad

iHalloween: a small ghost in the camera’s view above a watching pumpkin, the pumpkin screaming, and the board of sounds

iHalloween

Put it on the porch. It sees them coming, and it screams. Forty Halloween sounds for iPhone and iPad

The iRetroPhone dial

iRetroPhone

A rotary dial that really calls. Open iPhone Duo for a paper Speed Calling card.

On the web6

Geo Measure screenshot

Geo Measure Web

Measure distance and area on web

Geo Elevation screenshot

Geo Elevation Web

Elevation Data on Web

Geo Measure on OpenStreetMap

Geo Measure OSM

Geo Measure using Open Street Maps

Dictionary Icon

ObjectGraph Dictionary

1913 Webster's Dictionary

HTTP Labs color dropper tool

HTTP Labs

Collection of open-source tools for Developers

Remove Image Background App Icon

Remove Bg

Remove Image Background using AI