Free online 3D dice roller with realistic physics simulation
Free chess game review that tells you why
Stage
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Founded
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Based in
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Pricing model
Free
Freemium
Pricing
Not given
Free: $0. Pro: $9.99/month, $69/year, or $149 lifetime (early-bird for first 100 buyers, then $249). Pro covers up to 100 Coach-explained games and 50 scoresheet photos per month.
Key features
Physics engine simulates realistic dice bouncing and settling
Hold button to charge bigger throws
Shake phone to roll dice
Double-tap to lock dice for rerolls
18 material styles including crystal, opal, and galaxy
Polyhedral dice D4 to D100 for RPGs
Create custom dice with text, emoji or photos
Works offline after first visit
Roll history saved locally on device
Accuracy scoring based on winning chances
Move labels: inaccuracy, mistake, blunder
No account required for free review
Import games from Lichess or Chess.com
Coach written explanations in plain language
Scoresheet photo to PGN conversion
Suspected mistakes checked twice at greater depth
What makes it different
Realistic physics simulation with random spin and natural settling
No sign-up, no download, works in any browser
Works in 11 languages globally
Privacy-first design with data staying on your device
Ready-made dice for 20+ games and activities
Honest labeling: mistakes rechecked deeper before labeling
No uploads for free review: analysis runs locally in your browser
Free review never requires account or has daily limits
One-click review for returning users with remembered username
3DRoll
Explain My Chess