How to Choose an Anxiety or Overthinking App

Start with the job you need done, not a ranked list of apps. Structured CBT-based programmes teach skills over several weeks, meditation apps help you practise attention, mood trackers keep a record, worry journals give repetitive what-ifs a place and a time, and therapy platforms connect you with a trained person. Whichever type you choose, check what it claims, the evidence behind it, what happens to your data, what it really costs and what it does when you need more help.

Prepared by Let It Out Editorial TeamUpdated 2026-11-01

Why this guide compares types of app, not brands

Search for an anxiety app and most results are ranked lists of named products. Those lists date quickly: prices change, features move behind subscriptions, and some apps close altogether. The type of app usually matters more than which brand is top this month, because each type is built for a different job.

This guide sorts apps into five broad types, says what each is good for, and gives you a checklist for any app, including ours. It draws on public guidance from the UK's Medicines and Healthcare products Regulatory Agency (MHRA), NICE and the American Psychiatric Association (APA). It does not recommend a particular product and cannot tell you what is going on for you.

Start with the job you want the app to do

Before comparing anything, finish this sentence: when anxiety or overthinking shows up, I want something that helps me ____. Learn a set of skills? Settle my body for a few minutes? See patterns over weeks? Put a repetitive what-if somewhere until later? Talk to a person?

Each answer points to a different type of app, and plenty of people use more than one. The usual mistake is expecting a tool built for one job to do another: a mood tracker will not teach you a skill, and a meditation session will not remember your worry for you.

Five types of app, compared

This is a summary. Apps within each type vary, and many mix features from more than one row, so check the individual app too.

Five types of app for anxiety or overthinking: what each is for, what to check and who it tends to suit
Type of app	Good for	What to check	Who it tends to suit
Structured CBT-based self-help programme	Learning skills such as spotting thinking patterns and testing worries, step by step over several weeks	Where the content comes from; what evidence is cited; whether a practitioner is involved; cost; what it says to do if you feel worse	People ready to work through lessons regularly, or pointed to a programme by a GP or talking therapies service
Meditation and mindfulness app	Practising attention and breathing, and noticing thoughts without following them	Whether claims go beyond relaxation; subscription and renewal terms; whether sessions leave you settled or stirred up	People who like audio guidance and want a regular practice rather than somewhere to write
Mood or symptom tracker	Recording how you feel over time and spotting patterns, sometimes to bring to an appointment	Where the data goes; whether anything is shared automatically; export and deletion; whether logging leaves you calmer or more preoccupied	People who want a record to reflect on or take to a GP or therapist
Worry journal or worry-postponement tool	Writing a recurring what-if down once, returning to it at a chosen time, and seeing what actually happened	Privacy, including any AI processing; whether it says plainly that urgent problems are not for postponing; which features are paid	People with repetitive, future-focused worries who want something lighter than a course. Let It Out is this type.
Therapy or coaching platform	Working with a trained person by video, phone or messages, with an assessment and a plan	Practitioner qualifications and registration; therapy or coaching; price per session or month; out-of-hours and crisis arrangements	People whose worry is affecting daily life, or who want a person rather than a tool

What the evidence looks like for each type

Evidence is not spread evenly. NICE's guideline on generalised anxiety disorder describes CBT-based self-help that people work through systematically over at least 6 weeks, and a guided version supported by a trained practitioner, usually 5 to 7 sessions of 20 to 30 minutes. A programme that looks like that, and says where its content comes from, is easier to judge than one that simply promises calm.

For meditation, the US National Center for Complementary and Integrative Health (NCCIH) describes mixed short-term results for mindfulness-based approaches in adults with diagnosed anxiety disorders, and notes that the few studies following people beyond 2 months found no long-term effects. It also reports a 2020 review of 83 studies in which about 8 percent of participants had a negative effect from meditation, similar to the rate for psychological therapies. That summary covers meditation in general, not apps.

Trackers and journals usually make smaller claims. NICE's evidence standards framework, written for NHS evaluators, places symptom and mood diaries whose information stays with the user in tier B, and technologies that treat or diagnose a condition in tier C, with the evidence needed proportionate to the potential risk. Put simply, a private diary does not need a clinical trial, but an app that says it treats anxiety should be able to show much more.

A checklist for any mental-health app

These questions combine the MHRA's five things to check before using a digital mental health tool with parts of the APA's App Evaluation Model. The APA says there is no minimum number of its levels an app must meet to be useful, so treat these as prompts, not a pass mark. It also suggests downloading and trying an app to see what it actually does.

What does it claim to do? General wellbeing, or diagnosing, treating or managing a condition? Bigger claims need clearer evidence.
Who is it for? Check the stated age range and intended users.
Is the evidence about this app? Look for how it was tested, not just reviews or a well-known technique named in the description.
Is it regulated? The MHRA says wellbeing products are not regulated as medical devices; that does not mean they are unsafe, but they may not have had the same checks. A tool claiming to diagnose, treat or manage a condition should carry a UKCA or CE mark, and you can look it up on the MHRA's public register.
What happens to your data? Can you find, in plain language, how entries are stored, which third parties receive data, whether AI processes what you write, and how to delete it?
Is it maintained? The APA model asks whether the app has been updated in the last 180 days.
What does it really cost? One-off, subscription or per session; which features are paid; how renewal and cancellation work.
What if you need more help? Does it say clearly that it is not an emergency service, and point you to real support?
After using it for a while, do you feel more settled, or more preoccupied with checking?

Worked example: choosing for a run of evening what-ifs

This example is invented. Leah started a new job last month. Most evenings from about 9pm, the same questions arrive: did I sound unprepared in the meeting, and what if the probation review goes badly? She is sleeping, working and seeing friends, but the evenings feel taken over.

She tried a meditation app first. The breathing sessions help her settle, but halfway through one she is back at the probation review. Her finished sentence reads: I want somewhere to put the same what-ifs so I stop carrying them all evening. That points to a worry journal.

She runs the checklist on two journaling apps. One makes no medical claims, explains how entries are stored and deleted, and was updated recently. The other says it will cure anxiety and has no privacy policy she can find, so she leaves it. She keeps the meditation app for winding down, notes each what-if in a few words, and reads them in a 15-minute slot after dinner. NHS Every Mind Matters suggests a short period, say 10 or 15 minutes, for writing worries down and looking for solutions.

She also puts a review date in her calendar a month ahead. If the evenings still feel taken over then, or her sleep starts to suffer, she will look into NHS talking therapies rather than hunting for another app.

When Let It Out is the wrong choice

Let It Out is a worry journal. You capture a worry by text or voice, keep it in a worry box, set a revisit time, and later look back at what changed. The optional Worry Guide and monthly insights use AI to organise and summarise what you choose to share with them. That makes it a poor fit for several jobs:

You want a structured course that teaches CBT skills step by step. Let It Out is not a CBT programme or therapy.
You mainly want guided meditation, breathing or relaxation audio. A mindfulness app is built for that.
You want a symptom scale or a record to share with a clinician. A tracker designed for that will suit you better.
You need to talk to someone, or the worry is urgent. The app is not an emergency service, and urgent safety, health or deadline problems need action and qualified help, not a revisit timer.
You would rather no AI processed anything you write. The AI features are optional, but read the privacy information first, or use paper.
You do not want a subscription. The app is free to download, but some features are part of the paid Perspective Plus plan. A notebook and a kitchen timer can run the same basic routine.

When an app is not enough

Apps can be a useful part of looking after yourself, but they are not a substitute for care. If worry is hard to put down most days, or it is affecting your sleep, work or relationships, talk to your GP. The NHS website says adults registered with a GP can also refer themselves to NHS talking therapies without speaking to a GP first (16 or over in some areas). That can include guided self-help: a workbook or online course with a therapist's support.

If you choose a private therapist or therapy platform, the NHS suggests checking they are registered with a professional organisation accredited by the Professional Standards Authority. Coaching can help with goals and habits but is not the same as therapy, so ask what training a coach has and what they do if they become worried about you. If a regulated digital mental health tool causes you harm or distress, you can report it to the MHRA through its Yellow Card scheme.