Voice calculator for accessibility

Simple Voice Calculator lets you do arithmetic without hunting for small keys or squinting at a tiny display. You say the calculation, each number appears as its own block, and the total can be read back to you. It works with VoiceOver, Voice Control and Dynamic Type.

Updated · Vito Software, maker of Simple Voice Calculator

On this page
Simple Voice Calculator with a large total display
A large total, and every number as a separate block VoiceOver can read.

Who it helps

Low vision and blind users

VoiceOver reads every element. Voice output announces results aloud, so you never need to read the screen.

Motor disabilities

Speak equations instead of tapping tiny buttons. Say "stop" to end recording without touching the screen.

Older adults

Large text through Dynamic Type, and a simple screen without clutter or confusing menus.

Cognitive accessibility

The equation stays on screen so you can check each step, and hearing the answer reduces how much you have to hold in your head.

Accessibility features built in

Diagram of three steps: say the calculation, see each number as its own block that VoiceOver reads, and hear the total read aloud
Say the sum, check each number, then hear the total. VoiceOver can read every block.

VoiceOver support

Every interactive element (microphone button, equation components, history entries and settings) has proper accessibility labels. VoiceOver users can move through the whole app and calculate independently. Equation parts can be selected and edited individually with VoiceOver gestures.

Voice Control

Apple's Voice Control lets you operate an iPhone entirely by voice. Simple Voice Calculator works alongside it, so people who can't use touch at all can still open the app, start recording and move through results.

Spoken results

After each calculation, the result is spoken using Apple's text-to-speech engine. This is separate from VoiceOver and works with VoiceOver off, which suits anyone who prefers to hear the answer. Turn it on with Announce Total in the app's Settings.

Dynamic Type and contrast

Text follows your system font size. Dark mode gives high contrast for people sensitive to bright screens, and the interface avoids the low-contrast gray-on-gray combinations that fail WCAG guidelines.

Privacy by design

Vito Software collects zero data from Simple Voice Calculator. Voice recognition runs on-device through Apple's Speech framework, so your voice and calculations never leave your iPhone. In healthcare, finance or any sensitive setting, that matters.

Six languages

Speak in English, German, Italian, Spanish, Hindi or Korean. Recognition follows your iPhone's language.

From people who use it

After trying countless other calculators that claimed to be hands-free calculators, I stumbled upon Simple Voice Calculator. I had about given up on finding a calculator that I could use hands-free and was very pleasantly surprised to find this one works very well.Debbdrex, App Store review
Dictate your math equation and get an instant answer. Now I can calculate long sequences without taking my eyes off the data. The app will even speak the answer.KGRoberts, App Store review

Getting started with VoiceOver

  1. Turn on VoiceOver in Settings › Accessibility › VoiceOver, or say "Hey Siri, turn on VoiceOver".
  2. Open Simple Voice Calculator from your Home Screen. It's called "Voice Calculator" there.
  3. Swipe right to reach the microphone button, then double-tap to start recording.
  4. Speak your equation naturally. VoiceOver reads each component as it appears.
  5. Listen for the spoken result, or swipe to review the equation on screen.
  6. Say stop to end recording hands-free, or double-tap the stop button.

Not sure what to say? The full list of words the app listens for is in what to say.

Apple Watch for quick math

The Apple Watch app puts a voice calculator on your wrist, which helps when your phone is out of reach. A watch face complication keeps it one tap away, with instant results, and a misheard number is deleted with a tap. There's more in the Apple Watch guide.

Questions people ask

Is Simple Voice Calculator accessible with VoiceOver?

Yes. All buttons, equation parts and results are properly labeled, and the app can also read results aloud.

Can I use Voice Control with Simple Voice Calculator?

Yes. Together with voice input, it lets people with motor disabilities calculate without touching the screen.

Does Simple Voice Calculator collect my data?

Vito Software does not collect any data. Voice processing in Simple Voice Calculator runs entirely on-device.

Is there an accessible voice calculator for Apple Watch?

Yes. Simple Voice Calculator includes a full watchOS app with watch face complications. Requires watchOS 10.5 or later.

Simple Voice Calculator
for iPhone.

Free on the App Store, with no ads. Works on iPhone, iPad and Apple Watch. Rated 4.6 out of 5 by more than 200 people.