An AAC app for living with ALS and MND

Replies ready by the time the question ends, spoken in a voice that sounds like yours.

When ALS or motor neurone disease starts to take your speech, the hardest part is often not the words. It is the pauses. The conversation keeps moving while you are still forming a reply. Rejoin is built for that moment: it listens alongside the conversation, has three replies ready by the time the question ends, and speaks the one you tap in a voice that sounds like yours.

Bank your voice while it is still strong

Apple Personal Voice lets your iPhone or iPad record a synthesized copy of your own voice, free, in one sitting. With ALS the single most useful thing you can do today is record it early, while speech is still comfortable, because a voice model is only ever as good as the speech it learns from.

If speech has already changed, it may not be too late. Apple lets you build a Personal Voice from short three-word phrases instead of full sentences, and you can pause and resume across as many sittings as you need. Our step-by-step guide covers the whole process.

Rejoin finds your Personal Voice automatically once you allow access, with no export or upload step. If you do not have one, Rejoin's built-in voices are warm and adjustable, and you can switch at any time.

Replies ready before the pause

With a progressive condition, energy matters as much as time. Rejoin+ listens with you and offers three replies in your own style while the other person is still talking, so answering is one tap rather than a sentence typed letter by letter. You pick the tone: Quick, Warm, Funny or Direct.

Nothing is ever spoken without your tap. Suggestions are only suggestions, and that rule has no exceptions.

When typing is easier, or there is no signal

Typing to speak, your sayings board, routines, history and Display mode all work fully offline. The AI suggestions need a connection, and when you are offline they fall back to your most-used phrases. Everything you actually need in order to speak keeps working either way.

Built for how ALS actually progresses

During setup you say what is making speech hard, and Rejoin adapts: bigger targets for tremor, typing-first layouts, persistent dwell anchors for Speak and Stop. It is designed for switch control, dwell and eye-gaze, and has been tested with AssistiveTouch Dwell on a Tobii iPad. We would not claim it is proven on every rig, and if it does not work with yours we want to hear.

Set up together, stay in charge

Many people set Rejoin up with a partner or family member. Choose "I'm helping someone" on the second onboarding screen and you set up side by side. Rejoin keeps the person who is speaking in charge: it speaks only in their voice, and their words always need their tap.

What is free

Speaking is free forever: typing to speak with your own voice, your sayings board, routines, Display mode and history, all working offline. Rejoin+ adds the AI layer that listens and drafts replies, for $12.99 a month or $99.99 a year with the first month free. That layer runs on a server, so it needs a connection. If a subscription lapses, Rejoin never goes silent.

Not sure Rejoin is the right fit? Our honest comparison covers the alternatives, including the free ones, and says plainly when you should choose something else.

Download on the App Store Set up Apple Personal Voice