PolyDigits
Learn Numbers in 40+ Languages
Master number pronunciation through interactive drills
Simple, focused, and completely free
Three ways to practice
Listen Mode
Active practice — hear a number, type it in, get instant feedback
- •Immediate correct/incorrect feedback
- •Track your streak and accuracy
- •Adjustable number ranges and settings
Math Mode
Relaxed arithmetic — see a problem, reveal the spoken answer when ready
- •Self-paced: tap to hear the result
- •Addition, subtraction, multiplication
- •Mark whether you knew it, then continue
Flash Mode
Relaxed recognition — see a number, reveal and hear it when ready
- •Self-paced: tap to reveal
- •Build number recognition at your speed
- •Many customization options
40+ Languages
Native pronunciation powered by your device's text-to-speech
And many more — any language supported by iOS text-to-speech
Frequently asked questions
PolyDigits uses native text-to-speech to pronounce numbers in your chosen language. You hear a number, then identify it — building recognition through active practice rather than passive study.
PolyDigits supports 40+ languages including Spanish, French, German, Japanese, Mandarin, Korean, Arabic, Hindi, and many more. Each language uses the device's native voice for authentic pronunciation.
Yes! The app is completely free with no ads. There's an optional tip jar ("Buy me a coffee") if you'd like to support development, but all features are available without payment.
Listen Mode is active practice: hear a number, type your answer, get instant feedback. Math and Flash modes are more relaxed — you see a problem or number, think about it, then tap to reveal and hear the answer. All three have extensive customization options.
No. All your progress and settings are stored locally on your device. There are no accounts, no analytics, and nothing shared with third parties. Your learning is completely private.
Yes! You can customize speech rate and pitch for each language. Slow it down when learning, speed it up as you improve. The app also offers 50+ voice options.
Ready to start learning?
Download PolyDigits and master numbers in any language.