Build and speak
Choose words to build a message, then tap the message bar to say it aloud.
Speak freely,
express yourself clearly.
SPARK is a free AAC app for building and speaking messages. Organize vocabulary, personalize boards, and communicate using the words that matter to you.
Communication should fit the person
SPARK keeps everyday communication straightforward while giving people room to make every board their own.
Built for personal communication
Add the words, phrases, photos, emoji, recordings, and folders that fit the person using SPARK.
Fast and familiar
Organize vocabulary into clear boards while keeping familiar positions stable for muscle memory.
Private and available offline
Messages, boards, and learned predictions stay on your device during normal use. No account is required.
See SPARK in action
Choose words from familiar boards, build a message, and tap the message to speak. Search, saved phrases, predictions, and editing tools stay close without getting in the way.
Why SPARK?
Practical tools for communicating, finding words, and adapting a board to individual needs.
Organized vocabulary
Browse everyday words and topic folders without losing quick access to common language.
Make it personal
Add or edit words, phrases, folders, photos, emoji, pronunciations, and recordings.
Find words quickly
Search built-in and custom vocabulary from one place.
Save useful phrases
Keep favorite messages nearby and return to recently spoken phrases.
Helpful predictions
Offline suggestions help continue a message without sending the message to a server.
Adjust the interface
Change text size, grid density, symbols, speech, touch delay, and navigation behavior.
Local by default
SPARK needs no account. Communication content and private learning remain on the device during normal use.
Frequently asked questions
Try SPARK
Open the web app and start with the included communication boards. No account is required.