Small, careful apps for families.

Ninebrook is a small app studio run by one person in Singapore. We make focused apps that do one useful job well, with clear prices and a real person reading every support email.

Our apps

Digitlark

Launching soon

Competition-maths readiness for children aged 7 to 12. Parents start with a free 10-minute readiness check that the child does on screen, and get a Brain Card with the results. Paid plans then add steady, structured practice.

• Sprint pass · USD 21.99 12 weeks of access from the day you buy; if your contest is sooner, the plan is paced to contest day. 5 puzzles a day (new puzzles plus spaced review) with hints, a timed mock test every week, and progress reports. One payment. Does not renew.
• Puzzle Club · USD 4.99 a month or USD 39.99 a year For after the Sprint or between contests: puzzles from the next level up, Think deeper cards and entry to every Digitlark Challenge weekend. Renews automatically each month or year until you cancel. Cancel anytime (how to cancel).

14-day money-back guarantee on your first Sprint pass and on the first payment of your first Puzzle Club subscription. Prices are in US dollars. In the UAE you pay in dirhams: AED 79 for the Sprint pass, and AED 19 a month or AED 149 a year for Puzzle Club.

Digitlark is not on sale yet. Its website, digitlark.com, opens soon.

What you can expect

• Try before you pay. Digitlark’s readiness check and Brain Card are free. You only pay if you want more.
• Checkout through Polar. Polar, our merchant of record, takes the payment, sends your receipt and handles sales tax or VAT.
• 14-day money-back guarantee. Not happy with your first Sprint pass or your first Puzzle Club payment? Ask within 14 days for a full refund. No questions asked.
• Cancel anytime. Subscriptions stay active until the end of the period you’ve paid for, then stop. How to cancel.
• Made for parents. Children use our apps on a parent’s device, after the parent gives consent. For a child we ask only for a nickname and a school grade, and both stay on your device. To show progress and fix faulty puzzles, we store practice records (which puzzle, the answer chosen, right or wrong, time taken, hints used, score and level) linked to a random device ID, never to a name.
• No ads in our apps. We never show ads inside our apps.
• A real reply. Email support@ninebrook.com and you’ll hear back from the person who runs Ninebrook within 2 business days.