For therapists

A between-sessions companion for the tools you already give your clients.

What it is

Solastone is a check-in app. A client turns a stone on the screen to one of four states, says how many minutes they have, and gets one practice sized to that time. There are no streaks, scores, or charts, and nothing in it tells a person how they feel.

It is made to be used one-handed and silently, in the few seconds someone actually has: from opening the app to a running breath practice is three taps. It is free, and the check-in, the breathing, and a person’s own toolkit will stay free.

How clients use it between sessions

The four states, in the app’s own words. The client chooses; the app never decides for them.

  • GreenFeeling good. I can cope.
  • YellowSomething isn’t quite right. I could use support.
  • RedI’m overwhelmed. Body’s taking over.
  • PurpleBarely here. Floating through.

Then the client says how long they have, from one minute to a day away, and Solastone offers one practice that fits. Afterward it asks two optional questions: did it help, and where are you now.

The toolkit. The app ships with 93 practices: slow breathing patterns, grounding, gentle movement, time outdoors, writing, rest, reaching out to someone, and guided thought records. Most carry a short plain-language note under “the science” on where the practice comes from and what has been studied, with a modest citation where one exists (Zaccaro et al., 2018, on slow breathing, for example). None of them claims to treat anything.

Their own tools. Clients can add practices of their own, including the ones you give them, with their own steps or a timer, the states and minutes they fit, and an optional note on why. These are suggested alongside the rest. They can add their own feeling words, and describe in their own words what each state feels like in their body.

Letting go. When something is heavy, a client can write it down and set it down: the words dissolve as they breathe out. What is set down is kept on the phone only, never backed up or uploaded, and can be brought back.

Pebbles, not streaks. Every check-in places one pebble. The pebbles gather into an arrangement that grows over time, and nothing is counted. A missed week costs nothing, and the arrangement never goes backward.

What a client can bring to a session

In the app, Share a summary puts together a plain account of the days the client picks. It opens with counts: how many check-ins on how many days, which states came up and on how many days, and which practices were used and how often they said each one helped. Then, day by day, each check-in with its time, state, the minutes they had, where they were (home, work, or traveling), the practice, whether it helped, and where they landed afterward.

Feeling words, where in the body, and check-in notes are included unless the client leaves them out. Thought logs are left out unless the client chooses to include them, and the summary then says so. The client can also add what each state feels like in their body, the practices they come back to, and a note to you at the top. There are no scores, rates, or trends, and nothing is interpreted.

It comes as a PDF or as plain text. It is generated on the phone and goes out through the phone’s own share sheet, to whoever the client chooses. Solastone uploads nothing.

Solastone -- check-ins, Sep 2 – Sep 8, 2026

A note from me:
The Wednesday morning was the one I mentioned.

5 check-ins, on 4 different days.
States that came up: Green on 2 days, Yellow on 2 days and Red on 1 day.
Practices used: Physiological sigh, twice (helped once, helped somewhat once); Feet on the ground, once (helped once).

Day by day

Tuesday, September 2
  2:40 PM  Yellow
    5 min, at work, Physiological sigh, helped somewhat, after: Yellow
    Feelings: tense, rushed, in the chest
    Note: Back-to-back meetings. Took the stairs after.
  9:15 PM  Green
    Just checking in

Wednesday, September 3
  7:50 AM  Red
    15 min, at home, Feet on the ground, helped, after: Yellow
    Feelings: dread, in the stomach

Friday, September 5
  12:10 PM  Yellow
    1 min, at work, Physiological sigh, helped, after: Green

Sunday, September 7
  10:05 AM  Green (thriving)
    Just checking in

--
Shared from Solastone. A wellness journal, not a medical record.
An example of the plain-text summary, with made-up check-ins. The PDF carries the same words, laid out on a printable page.

Privacy

  • Everything lives on the client’s phone. Accounts are optional and exist only for backup and moving to another phone.
  • There are no analytics, no ads, and no tracking.
  • Thought logs are encrypted on the phone before they are backed up.
  • Two optional features, letters from your stone and written mantras, use an AI model (Anthropic’s Claude) and need an account. Nothing is sent until the client has seen exactly what will be sent and said yes. Neither ever sends notes, thought logs, or anything set down.
  • Solastone never sees a shared summary, and there is no clinician portal or account on your side.

The privacy policy has the detail.

What it is not

Solastone is not therapy, not a medical device, and not crisis support. It does not diagnose, treat, or monitor any condition, and it is not a substitute for care from a professional. It can sit alongside care a client already has.

The app shows a quiet line offering crisis resources only after red has been chosen on three or more consecutive days. That line opens the Reach-someone sheet: call or text 988 in the US, findahelpline.com elsewhere, and a way to message someone they trust. The same sheet is reachable at any time from Help in the app. Nothing is sent to anyone else, and no one is alerted.

Working together

If you give clients small practices to use between sessions, I would like to hear from you. Try the app and tell me what does not fit. Suggest a practice from your own work that the toolkit is missing. Or talk with me about a small pilot in your practice, with the summary as the thing your clients bring in. There is no referral arrangement and no fee in either direction; the check-in and the toolkit stay free.

I am Ana, Solastone’s founder. I have been in therapy for years, and have read more about the nervous system than most people who are not clinicians. None of it stopped me from burning out. The app came out of that year, and the toolkit grew from what one therapist gave me. The story is in the journal.