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Home › Store › Creator & AI apps › Sumbloom Expert
What you get: A harder daily puzzle and unlimited expert practice, pay once.
Prices in USD, + tax where applicable (shown at checkout before you pay).
Secure checkout by Stripe (shown as Link) · instant delivery · refund policy

Free to use in your browser right now, no sign-up. Upgrade only if you want more.
What you get: A harder daily puzzle and unlimited expert practice, pay once.
Prices in USD, + tax where applicable (shown at checkout before you pay).
Secure checkout by Stripe (shown as Link) · instant delivery · refund policy
Sumbloom's daily number puzzle, practice mode and archive stay free.
Human support: cybermax.tools@gmail.com · Tax handled at checkout · 14-day fix-or-refund terms
14-day fix-or-refund if it doesn't work as described: email us within 14 days and we fix it or refund you in full. Refund terms.
Prices in USD, + tax where applicable (shown at checkout before you pay).
Sumbloom's daily number puzzle, practice mode and archive stay free.
Buy nowSumbloom's daily number puzzle, practice mode and archive stay free. Expert adds a second daily puzzle with bigger targets (up to 999), longer solutions and the large numbers 25, 50, 75 and 100, plus unlimited expert practice puzzles. Every target is built from a real sequence of moves, so it is always solvable. One payment, no subscription; it turns on the moment checkout finishes and works on any device with your unlock code.
Checkout is handled by Stripe. Your download, licence key or API key and your receipt arrive by email right after payment.
Yes. If it doesn't work as described, email us within 14 days and we fix it or refund you in full. See the refund policy.
Card details go only to Stripe. CyberMax never sees them; sales tax or VAT is calculated at checkout.
Published prices, checked 2026-09-27: API Ninjas Sudoku, Developer $39/100,000; SUDOKU All-Purpose PRO (myv@API, RapidAPI), Pro $3.90/mo 390 req. Sumbloom Expert starts at $1.99, and you can try it free on this page before paying.
Sumbloom Expert · from $1.99
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Prices and plans generated from live Stripe data on 11 Nov 2026.