{
 "name": "Caliper: Vernier Trainer",
 "tagline": "Learn to read a metric vernier caliper with an interactive instrument",
 "description": "Learn to read a metric vernier caliper with an interactive instrument. See where the moving zero sits, practise each new step, and build confidence before using a real caliper.\n\nSTART WITH THE BASICS\nA short interactive introduction shows how the caliper measures and guides your first whole-millimetre reading. Level 1 gives you five free exercises with feedback.\n\nKEEP LEARNING\nThe guided course has 30 levels. Start with whole millimetres, then learn half-millimetre readings and finer 0.02 mm vernier steps. Checkpoints show your accuracy and time so you can improve.\n\nPRACTISE YOUR WAY\nRead measurements, set the jaws to a target, or try timed Speed challenges. Zoom and move the scale to inspect the markings.\n\nONE PURCHASE FOR FULL ACCESS\nThe introduction and Level 1 are free. A single non-consumable in-app purchase unlocks Levels 2–30 and the Read, Set and Speed modes. No subscription or account is required. Restore Purchases is available in the app.\n\nCaliper is a training simulator; it does not measure physical objects with your phone.",
 "url": "https://debuts.app/apps/caliper-vernier-trainer",
 "category": "Education",
 "platforms": [
  "iPhone and iPad"
 ],
 "pricing": "free",
 "use_cases": [],
 "audience": [],
 "links": {
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  "google_play": null,
  "website": "https://conceptofproof.nl/caliper"
 },
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 ],
 "claimed": false,
 "verified": false,
 "maker": "Concept of Proof B.V.",
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}