Best Apps for Mental Health in 2026: What Each Is For and What Is Free

There is no one best app for mental health, because three different products share the label. If you want to talk something through, you want an AI companion, and Stella, Replika and Wysa are three of those. If you want exercises to work through, you want guided self-help. If you want something to listen to at eleven at night, you want a meditation and sleep library like Calm. Pick the job first and the shortlist gets short.

The second question is what it costs, and it is where comparisons like this usually go quiet. A free download is not free use. Wysa documents free conversation tools and Calm gives away selected content, so if free is the requirement, start there. Stella is free to download and needs a subscription to keep using, $9.99 a month or $59.99 a year in the US, and Stella is the company publishing this page, so read our own row knowing that. Stella is your AI emotional wellness companion for understanding how you feel and choosing how you want to respond. It is not a therapist and it does not diagnose or treat mental health conditions.

Quick answer: Decide which of three things you want. Somewhere to talk points to an AI companion. Something to practise points to guided self-help. Something to listen to points to a meditation and sleep library. This guide compares what each app documents and what it costs. It does not test clinical effectiveness, and none of these apps replaces professional care. None of them is a crisis service either. If you are in immediate danger or thinking about harming yourself, contact your local emergency number or a crisis line.

AI companion and wellness apps compared

How we compared these apps

Disclosure: Stella publishes this guide and is in the table above. We read official product pages, help documentation and store listings on September 15, 2026. This is a documentation review, not a hands-on trial, and it does not rank clinical effectiveness. We have not measured response quality, memory accuracy or health outcomes, and we are not going to pretend otherwise. Sources are linked beside each entry.

Stella. Ours. Stella is an AI emotional wellness companion, which in practice means somewhere to talk something through and work out how you want to respond to it. An ordinary day, a difficult moment, or the decision you keep putting off. The message you typed and did not send. The conversation at work you keep re-running on the way home. Good news you want to tell someone before you tell everyone. Nothing asks you to set a goal afterwards, and there is no programme to finish. Voice and chat in the iOS app, on a subscription, and not therapy.

Wysa. The most useful thing to know is that Wysa is two products wearing one name. Its FAQ describes AI conversation alongside a library of exercises drawn from cognitive behavioural therapy and mindfulness, and in some locations human coaching is a separate offering on top. If what you actually want is to practise a technique rather than talk about your day, Wysa is the one on this list built for that, and the chat is the smaller half of what you are getting.

Replika. The one you customise. Its product site describes an AI friend with personalisation and calls, and some voice features sit inside Replika Pro. If the appeal is shaping a character rather than having a conversation, that is a real preference and Replika is the one that takes it seriously.

Calm. Calm is in this comparison because some people do not want to talk to anything at eleven at night. Meditations, Sleep Stories, music. That is not a worse answer than a conversation, it is a different one, and judging it on conversation quality would miss the point of it entirely.

Dawn. Sword Health's product page describes chat and personalised suggestions for US adults. Its own limits state that it cannot diagnose or treat mental health disorders and does not replace professional help. That is the correct thing for it to say, and it is the same limit that applies to everything else in the table, ours included.

What is actually free

A free download is not free use. That gap is where most of the disappointment in this category comes from. The app installs, you talk for a while, and a paywall arrives in the middle of the thing you were doing.

Here is what the apps above document about their own free access. Wysa documents free AI conversation and tools within conversations. Calm offers selected free content, with the rest behind Premium. Replika documents some voice features as part of Replika Pro. Dawn does not publish enough for us to summarise it fairly.

Stella is free to download and needs a subscription to keep using. That is $9.99 a month or $59.99 a year in the US, verified on the US App Store on September 13, 2026. There is no free plan for ongoing use. If there is an introductory offer running, it is whatever the App Store shows you at purchase, alongside your localized price, billing period and renewal terms.

If free is a requirement rather than a preference, take that seriously and start with Wysa's free conversation tools or Calm's free content. We would rather you used something that fits your budget than subscribed to ours for a month and resented it.

One rule covers the rest: open the app's own offer page before you subscribe. Features move between free and paid tiers, and they move quietly.

Which kind of app do you actually want

Three different products sit under “mental health” in the App Store, and they are not really competing with each other. They are answering different questions.

Conversation. You say something and something answers, open-ended, with the reply generated by software.

Guided self-help. Prompts and exercises organised around a topic, usually with a chatbot somewhere in the interface. The question worth asking here is whether human support is part of what you are buying or sold separately, because the answer varies by product and by country.

Recorded content. Meditations, breathing exercises, music, sleep stories. Listening to a recording is a different activity from having a conversation, and on some nights it is the better one.

A service that connects you with a licensed clinician is a fourth thing entirely, with a different relationship and a different scope of care. We wrote about the differences between AI tools and human therapy separately.

The labels blur in practice. Wysa is both a chatbot and an exercise library, so knowing that an app is “AI” tells you nothing about which of the two you will actually get. Look at the first screen, not the category.

Two apps that still turn up on most 2026 lists are not options any more. Woebot retired in June 2025. Youper has announced a September 30, 2026 shutdown. If a guide you are reading still recommends either one, it has not been updated this year. Our Woebot alternatives guide covers what replaced it.

Three questions worth answering before you subscribe

1. What do you want to happen? Company, a technique, or clinical care. A longer feature list does not answer that question, and most comparison tables are built so that you forget it was asked.
2. Voice or text? The rule is simpler than it sounds: speak when you are alone, type when someone is in the next room. Speaking is the faster route when the thought is not finished yet, which is most of the time. Typing is the one that works on a train. Some apps put voice behind the paid tier, which matters a great deal if voice was the reason you were interested.
3. What does it cost to keep going? The checkout price, the renewal period, the usage limits and how you cancel. Month one is never the expensive part.

One more thing, briefly. Several of these apps advertise memory, and a feature label tells you nothing about how well it works. Ask what is saved, what you can change and how you correct a detail it got wrong. We wrote about why memory matters in AI companions, including where it falls short.

Voice or text

Voice lets you say something without composing it first, and that is most of the value when the thing you want to say is still half-formed. Text lets you pause, edit and reread, and it does not broadcast your evening to the kitchen. Most people end up using both, on different days, for exactly those reasons.

If you want to say something out loud and have nothing answer, that is a voice note rather than any app on this list. Our guide to voice journaling covers the difference between recording a thought and having a conversation about it.

Frequently asked questions

The bottom line

Pick the job, then pick the app. If you want to talk, you are choosing between AI companions, and the things to compare are whether you want to speak or type and what it costs to keep going. If you want to practise something, Wysa is the one here built for that. If you want to listen, Calm is. And if a 2026 list still recommends Woebot or Youper, close it.

Stella is voice and chat on a subscription, and it is somewhere to talk something through and work out how you want to respond, rather than a programme to finish. That is the whole offer. It will not suit everyone, and we would rather say so here than have you find out in week two.