Flash Translation Keyboard
Translate text, in a flash
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Flash Keyboard is a custom keyboard with real-time translation in 135+ languages, AI writing tools, and smart utilities — all without leaving your app.
TRANSLATE IN 135+ LANGUAGES
Flash Pro unlocks Microsoft Azure translation: more natural, more accurate, and covering 135+ languages including rare and regional ones not available offline. No downloads needed — just select text and translate.
FREE — 20+ Languages Offline
On-device translation using Apple's Translation framework. Select any text and Flash translates it instantly. Tap to replace. No internet required. Your words never leave your device.
FLASH PRO — AI Features
Language Coach
Check grammar as you type — Flash tells you exactly what is wrong and why, in plain English. Tap any selected text to get an explanation. Learn as you type, in any app.
Word Definitions
Look up any word without leaving your conversation. Definitions appear right above your keyboard.
AI Actions
Select any text and choose an action: fix grammar, make it more formal, make it casual, or rewrite it. Powered by GPT-4o. Works in any app.
SMART UTILITIES
The utility bar detects what you are typing and offers instant actions:
Calculator — type any math expression and get the result
Unit Conversion — distance, weight, temperature, and more
Timezone Conversion — convert times across timezones
Smart Dates — type next monday or in 3 days to get the real date
Timer — type a duration to start a countdown
Reminders — type buy milk to add to Apple Reminders
MORE FEATURES
Smart multilingual autocorrect across all your active languages
Cursor trackpad — slide on spacebar to move cursor precisely
Saved macros — insert frequently typed phrases with one tap
Emoji picker
15 keyboard layouts
Privacy Policy: https://flashkeyboard.app/privacy
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy first — free offline translation never leaves your device. Flash Pro sends only the text you choose to translate or analyze, nothing else.
Language Coach — tap the graduation cap to instantly check and understand your text. If it's in a different language, you'll see a clean translation instead of a grammar check.
Better translations — single words now always use the on-device model. Improved fallback when Apple Translation is unavailable.
Online Translation — defaults to All translations when enabled for faster, more consistent results.
Emoji picker — now opens on the Smileys tab instead of empty Recents.
Reminders — off by default so you're never prompted for permissions unexpectedly.
Currency picker — now shows the currency code (USD, MXN, EUR) alongside the flag.
Bug fixes and stability improvements.
The developer, Pedro Cassian, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Pedro Cassian
- Size
- 25.8 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Flash Pro Annual $29.99
- Flash Pro Monthly $2.99
- Copyright
- © 2026 Pedro Cassian