Numbers 1–100
From the first numbers all the way to one hundred, said aloud.
A learning game for ages 6–8 · iPhone & iPad
See it.
Say it.
Off you go!
Callout turns numbers and words into a game children play with their voice. They say what they see out loud and move forward through playful 3D worlds, in English, Español or both.
See how it plays Coming soon to the App Store
- Ages 6–8
- Numbers 1–100
- Dots and pictures
- English, Español or both
- Up to six players
- On-device speech recognition
- No accounts, ads, in-app purchases or tracking
How it plays
Their voice
is the controller.
No tapping through answers. Children look at the prompt, say it aloud, and the game listens and moves on.
- 1
See a prompt
A number, a group of dots to count, or a picture to name.
- 2
Say it out loud
Callout listens through the microphone and recognizes the answer on the device.
- 3
Keep moving
Each answer moves the game forward through a playful 3D world.
What children practise
Counting, naming
and speaking up.
Short, spoken practice that builds number sense and vocabulary, in the language you choose.
Dots to count
Groups of dots to count and say, linking quantities with number words.
Pictures to name
Picture prompts that children name out loud to practise everyday words.
English, Español or both
Recorded voices in American English and neutral Latin American Spanish. Menus appear in English or Spanish, separately from the practice language.
An optional answer timer
An optional timer for each answer, or set it to Off and take all the time needed.
Up to six players
Each player picks an animal avatar and an optional nickname, and keeps their own progress.
Six worlds to explore
A journey to
talk your way through.
Play moves in three rounds of five successful answers, with checkpoints along the way. Earlier prompts come back later for review.
- Jumping Rabbit
- Jets
- Race Cars
- Dolphins
- Space Ships
- Dinosaur Valley
Built for children
Listening stays on the device.
Answers are recognized on the iPhone or iPad with Apple’s on-device speech recognition. Audio is not recorded or transmitted. Players, progress and settings stay on the device, and Mercury Project receives none of it. No accounts, ads, in-app purchases or tracking.
Read the privacy policyQuestions and help
We’re here to help.
Microphone access, speech languages, or anything else that isn’t working as expected: the support page has answers and a way to reach us.
Visit supportFor parents
Good to know.
Why does Callout need the microphone?
Children answer by speaking, so Callout uses the microphone during speaking gameplay to hear the answer. Recognition runs on the device.
Is my child’s voice sent to Mercury Project?
No. Audio is recognized on the device and is not recorded or transmitted. Mercury Project receives no audio, answers or progress. Callout does not use a third-party cloud speech service.
Does it need an internet connection?
The first time you play in a language, it may take a little while for iOS to download Apple’s on-device speech assets for it. Stay online until they are ready. Recognition itself runs on the device.
Which languages are available?
Children practise in English, Español or both, with recorded voices in American English and neutral Latin American Spanish. The app’s menus appear in English or Spanish, following the preferred language set for the device or the app, independently of the practice language. A Spanish-speaking parent can use Spanish menus while a child practises in English, Spanish or both, and the other way round.
Who is Callout for?
Callout is designed for children aged 6–8.
Does my child need an account?
No. There are no accounts. Up to six players can each choose an animal avatar and an optional nickname of up to 20 characters. Each player’s progress is kept separately on the device.
What do grown-ups need to know about settings?
Web links in the settings for grown-ups are behind an adult check that asks you to read an instruction and hold a picture.
When can we download Callout?
Callout is preparing for its App Store release. Download details will be added here when it becomes available.
Callout for iPhone & iPad
Say it out loud.
Built by Mercury Project. Coming soon to the App Store.
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