Gem Hunt is a treasure hunting game that quietly teaches maths and spelling.

Sweep the detector across the sand. Dig where it glows red. Answer a question to keep what you find. There are nineteen gems to collect across ten areas, from a warm shallow cove to the rim of a volcano.

Questions that follow your child

A grown-up picks an age group once, when the digger is created. After that the game moves on its own: three correct answers in a row and it steps up, two wrong and it eases back. Your child is never shown a level number and never told they are behind.

Maths and English are mapped to the Australian Curriculum, Foundation to Year 5. First letter sounds and counting to five at one end; area, decimals and figurative language at the other.

A wrong answer still keeps the gem

There is no punishment loop. Get it wrong, keep the gem anyway, score a little less, and get an easier question next time. Children who are behind do not get buried.

No timers anywhere

Nothing counts down. Time pressure punishes exactly the children this game is built for.

Plays completely offline

Aeroplane mode, a long drive, a waiting room with no reception: everything works. All ten areas, every question, the collection and the settings. There is nothing to download after you install it. On Android the app is not even granted permission to use the internet.

No advertising. No accounts. Nothing collected.

There is no ad network in this app and no analytics of any kind. There is no sign-in and no account. Your child's name and scores are saved on the device and never sent anywhere, because there is nowhere to send them. You can export or delete all of it from the Grown-ups area at any time.

Built to be readable

- A dyslexia friendly font you can switch on
- Gems that differ by shape as well as colour, so they can be told apart without relying on colour
- Big targets for small fingers
- A reduced motion setting

Up to four children

Each with their own progress, their own collection and their own difficulty. One device, one purchase, the whole family.

What it costs

Levels 1 to 3 are free. One optional purchase unlocks levels 4 to 10 for everyone on the device. No subscription, no in-game currency, no second purchase later. It sits behind a maths gate a young child cannot pass.

Made in Australia.