Willow AI Review (2026): The Well-Being Companion App

What Willow is and who makes it

Willow, listed in the Apple App Store as Willow: Well-Being Companion, is an AI chat app made by a small company called Bambu AI. If you searched for a Willow AI therapist, this app is almost certainly what you found: a conversational companion that describes itself as a high-EQ listener for everyday well-being rather than a clinical tool.

The app is organized around five areas of well-being: emotional, physical, social, workplace, and societal. You talk with Willow about whatever is weighing on you, and it responds with reflective questions, encouragement, and prompts toward small next steps. The developer also pitches it as a bridge around therapy, a place to process feelings between sessions and work through homework a therapist has assigned.

Scale matters for context here. As of July 20, 2026, the iOS listing shows version 0.2.4 with its last update in June 2025, and independent coverage of the app is thin. This review sticks to what we could verify from the App Store listing and the developer's own materials, and we label the developer's claims as claims. Willow is a self-help companion. It does not diagnose or treat any condition, and calling any chatbot a therapist gives it more credit than the evidence supports.

What it actually does

The center of the app is open-ended chat. Willow is built to act as an empathetic, active listener that builds rapport over time and learns what matters to you, according to the developer's description. In practice that means you type about your day, a conflict, a worry, or a goal, and the app reflects it back, asks follow-up questions, and nudges you toward naming what you feel and what you might do next.

Around the chat sit lighter wellness tools. There are daily check-ins, a calendar, and a conversation tracker meant to help you monitor your well-being over time and notice patterns in what moves your mood. If that tracking habit is the part that appeals to you, apps like Earkick are built around it as the core feature rather than an accessory.

Two features aim at people already in therapy. Willow offers help working through cognitive behavioral therapy homework a clinician has assigned, and the developer says that if you choose to use Willow alongside your therapist, clinical summaries are stored in encrypted form that only your therapist can see. We could not independently test that integration, so treat it as a developer claim to verify with your own clinician before relying on it.

There is also goal and milestone tracking for behavior change, framed in the app's marketing as a personal wellness cheerleader. That framing is accurate in spirit. Willow encourages, reflects, and reminds. It does not assess, diagnose, or deliver a structured clinical program.

Evidence and limits

As of July 20, 2026, we could find no published, peer-reviewed research on Willow specifically. That is worth saying plainly, because some competitors do have studies behind them. The general research on mental-health chatbots is mixed: reviews of conversational agents suggest short-term benefits for mild distress in some studies, while Stanford researchers have documented real failure modes when people lean on general-purpose AI for mental-health support, including inappropriate responses in sensitive moments.

Willow's small footprint cuts both ways. The pitch, a private notebook that talks back and keeps your therapist in the loop, is more modest and more honest than apps that market themselves as therapy. At the same time, a version number below 1.0, a sparse update history, and an 18+ age rating on the listing tell you this is an early product from a small team, and expectations should match that.

The hard limits are the same ones that apply to every tool in our AI therapy apps roundup. Willow is not a therapist and cannot replace one for diagnosis, treatment, or ongoing clinical care. It is also unsuited to emergencies. If you are in crisis or thinking about suicide, call or text 988 (US Suicide & Crisis Lifeline), available 24/7.

Privacy and data

Willow's App Store privacy label, as of July 20, 2026, lists data that may be linked to you including location, contact info, user content, identifiers, usage data, and diagnostics. For an app whose whole purpose is hearing your unfiltered thoughts, that list deserves a careful read before you share anything sensitive.

The developer makes two notable claims in its listing: that conversations are stored locally on your device, and that your data is not used to train its AI. Those are stronger commitments than many companion apps make. They are also self-reported, so read the current privacy policy inside the app, check what leaves your device and under what conditions, and confirm how deletion works. Our guide to AI therapy privacy walks through the specific questions worth asking.

A sensible default with Willow, as with any AI tool, is to share what you would be comfortable having stored, and to keep the most sensitive material for settings with clear legal confidentiality, such as a licensed professional.

Pricing and availability

Willow is free to download on iOS, with a subscription for full access. As of July 20, 2026, the App Store listing shows plans at $9.99 per month or $69.99 per year, with a 14-day free trial available in the US. Prices change, so confirm the current numbers in the app before subscribing. If cost is your main filter, our guide to the most affordable AI therapy tools compares free tiers across the category.

Availability comes with a caveat. The developer's site describes Willow as available on both iOS and Android, but when we checked on July 20, 2026, the Google Play listing was not reachable. If you are on Android, verify the app exists in your store before planning around it.

Verdict: who Willow fits

Willow makes the most sense for someone already in therapy who wants a low-effort place to process feelings between sessions, keep up with homework, and arrive at the next appointment with a record of the week instead of a blur. The encrypted therapist summary idea, if it works as described, is the most interesting thing about the app. It also suits the curious, low-stakes user who wants a gentle check-in habit and prefers a quiet companion over a clinical-looking program.

Choose something else if you want evidence behind the specific tool you are using. Wysa has peer-reviewed research and structured CBT and DBT exercises, and our guide to reading AI therapist reviews can help you weigh the rest of the field. And choose a human, not an app, if you are dealing with moderate to severe symptoms, safety concerns, or anything that needs diagnosis and treatment.

Bottom line: a modest, honestly framed companion from a small team, best treated as an experiment alongside real care rather than a cornerstone of it. What we could verify is limited, and that should shape how much weight you put on it.