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 — 15 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
Coach
Check your sentences as you type — Flash tells you exactly what is wrong and why, in plain English. Received a message you don't understand? Copy it, or a screenshot of the chat, and tap the coach icon to see what it means and get reply suggestions in their language.
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, casual, or flirty. 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
Context-aware multilingual autocorrect that learns how you write, leaves your contacts' names alone, and expands your text replacements
Cursor trackpad — slide on spacebar to move cursor precisely
Saved macros — insert frequently typed phrases with one tap
Emoji picker
10 keyboard layouts
Made for iPhone Duo — full-size keys on the big screen, plus an optional split keyboard when unfolded in landscape
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 — or chat screenshot — you choose to translate or analyze, nothing else.
New in Flash 1.5.3:
• Made for iPhone Duo: full-size keys on the big screen, and an optional split keyboard when unfolded in landscape (Settings › Split Keyboard)
• A new quick setup that asks about your languages and features and gets everything ready in about a minute
• Much smoother and lighter: the keyboard uses far less memory, opens faster and no longer slows down over time
• Fixed a bug where the keyboard could keep vibrating and stop typing after holding delete
• Fixed a rare crash in the calculator, and blurry emoji search results
• Fixed the Start Free Trial button not showing on the Flash Pro screen
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
- 24.8 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
