CRUMB

Vital Group Limited · Productivity

4.4 139 ratings $7.99
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Chart standing · US

Top Paid Productivity
#80
Best #26 ▼ 22

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Aug 26, 2026
Rating ★ 4.39 → 4.4

Price & rating history · US

Reconstructed from the listing changes AppTracker has observed in this storefront, so each line starts at the first change on record.

Average rating history over the observed period. 4.39 4.4 Aug 26 15:40 Aug 27 03:47 Aug 27 15:53 Aug 28 04:00 Aug 28 16:07

Average rating

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About

CRUMB offers an easy to use and interactive introduction to electronic circuits Fully realised in 3D, you can construct prototype circuits as you would at the workbench without the risk of terminal component failure or the hassle of ordering individual components CRUMB comes with a great selection of components to allow you to jump straight in to creating prototype circuits With the catalogue available, it is possible to study the workings of transistors & audio filtering, all the way to programming an EEPROM to run a basic program For the beginner, it is possible to learn and understand the basics of interactivity, and for the enthusiast it is possible to analyse and perfect prototypes before constructing real world models Using the built in oscilloscope and analysis views, it is possible to see clearly the interaction between components from within the wires themselves Through community feedback and suggestion, there will be many more components and features added. For a full feature list and development schedule please visit the website http://www.crumbsim.com

What's new · 1.0.3

Version 1.0.3 Updates: · Camera touch controls · Undo/Remove Point functionality when creating wired components · Breadboards and Power Rail can be snapped together · The Scope window can now be moved around the screen Bug Fixes: · LED and Capacitor bodies now correct orientation on first point · Power Supply outline after rotation · LED simulation oscillation fix

Details

ReleasedAug 2022
UpdatedAug 2022
Version1.0.3
Size520.2 MB
RequiresiOS 13.0 or later
Age rating4+
LanguagesEnglish
Price$7.99
Categories ProductivityEducation
Bundle IDcom.Vital-Group-Ltd.CRUMB