The short answer: the best free app is the one your child can use in the first minute — and that means picture cards that speak full, natural phrases the moment you tap them. Tala is free to start with 10 ready-made communication boards, natural human-sounding voices in 29 languages, and offline audio, which is why thousands of families begin there.
Most well-known AAC apps are not free: Proloquo2Go is $249.99, TouchChat HD is $149.99–$299.99, LAMP Words for Life is $299.99. "Free" options usually fall into three groups:
For a nonspeaking autistic child, three things matter more than cost: speed to first success (can they say something meaningful today?), voice quality (robotic speech makes many children abandon AAC), and whole phrases — many autistic children are gestalt language processors who learn language in chunks like "Can I have a hug", not word by word.
Tala was built around exactly those three: 90-second setup, one natural voice per language, and whole-phrase cards. Read more about gestalt language processing or compare AAC app costs.
Yes. The default communication boards, natural voices in 29 languages, and offline audio cost nothing, with no time limit. You only pay ($9.99/month) if you need more than the free allowance of custom boards and cards. Speech-language pathologists and teachers get everything free forever.
Historically AAC was sold as dedicated hardware costing thousands of dollars, and app pricing followed ($150–$300 one-time). Modern apps like Tala use a freemium model instead, so a family can find out whether AAC works for their child before spending anything.
Tala does — the default boards ship with bundled audio so cards speak instantly with no internet. Web-based free options generally need a connection for speech.