The short answer
Best app for anxiety
The best app for anxiety is the one that covers all three clocks anxiety runs on: the acute spike, the daily baseline, and the middle of the night. Most apps pick one clock and leave you assembling the rest from other apps. Stillee ships all three in one place: a free panic flow for the worst ten minutes, the Stanford-tested breathing pattern as a daily practice, and a dedicated 3 AM mode for the night.
Updated July 26, 2026. Reading time about four minutes.
What to look for
The criteria that actually matter.
The anxiety intervention literature sorts by time horizon. For the acute spike, the interventions with the most consistent evidence are controlled breathing with an extended exhale and grounding through the senses. For the daily baseline, the strongest recent trial is Balban et al. (2023), the Stanford RCT in which five minutes of daily cyclic sighing improved mood more than an equal dose of mindfulness meditation, and a 2023 meta-analysis of breathwork trials found small-to-medium effects on stress and anxiety symptoms. For the longer arc, the 2014 Goyal meta-analysis in JAMA Internal Medicine found moderate evidence that structured mindfulness programs improve anxiety, and affect labeling research shows that naming a feeling with precision dampens the amygdala response that drives it. None of these are cures, and the honest effect sizes are modest. They are also real, and they compound when the tools live in one place.
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Coverage of all three clocks
Anxiety does not keep office hours. It spikes in a meeting, hums under an ordinary afternoon, and wakes you at 3 AM. An app built for one of those moments and silent on the others leaves you assembling a toolkit from three subscriptions. Look for an acute surface, a daily practice, and a night mode in the same product.
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An acute tool that asks nothing of you
When anxiety peaks, reading, choosing, and rating are all off the table. The acute surface should open in one tap with the technique already running, and it should not sit behind a paywall. This standard comes from panic design, and it is the right standard even for spikes that never reach panic.
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A daily practice with trial evidence, stated honestly
The daily techniques worth your five minutes have numbers behind them: cyclic sighing outperformed mindfulness meditation on mood in a randomized trial, and breathwork overall shows small-to-medium effects. An app that promises to eliminate anxiety is describing neither. The honest pitch is a modest daily nudge that compounds.
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A vocabulary for naming what you feel
Affect labeling research is consistent: putting a feeling into precise words reduces the physiological response to it, and people with a richer emotional vocabulary regulate better. A five-face mood scale does not reach that effect. Look for named states and a place to write.
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A record to check against anxious memory
Anxious recall overweights the worst days. A mood log kept over weeks is the correction: it shows whether the baseline is actually moving, which no single day can tell you. An app that collects check-ins but never shows you their shape is not doing this work.
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Honesty about what an app can and cannot do
First-line treatment for an anxiety disorder is therapy, sometimes with medication. An app is a companion to that care, not a substitute, and the ones worth trusting say so on the page. Overselling the mechanism is a red flag that generalizes.
Where Stillee fits
What we built, against those criteria.
All three clocks, one app
The panic flow covers the spike, free, forever, one tap from the home screen. The Daily Practice Shape covers the baseline. The 3 AM mode covers the night, dim and silent by design. Nothing to assemble, no second subscription for the practice between the hard moments.
One technique carries the acute and the daily work
Cyclic sighing opens the panic flow and ships as the daily practice, which is exactly how the Stanford trial tested it: five minutes a day for a month. The breath you reach for at the worst moment is the one your body already knows.
Sixty-eight ways to name it, and a trend line
The journal logs mood on a five-level scale and then asks which feeling, exactly, with sixty-eight named states. Over weeks, the mood log builds the record that anxious memory distorts. What you write never enters our analytics.
Programs for the longer arc
The 8-Week Mindfulness Course carries the MBSR curriculum, the protocol behind most of the clinical evidence on mindfulness and anxiety. Money Anxiety takes on the specific worry that a spreadsheet cannot solve. Both pair sessions with readings and journal prompts.
FAQ
The questions people ask after they ask the first one.
What helps anxiety in the moment?
The two interventions with the most consistent acute evidence are controlled breathing with an extended exhale and grounding through the senses. Cyclic sighing is a reasonable default: two short inhales through the nose, one long exhale through the mouth, no counting to hold onto. If the spike comes with unreality or detachment, grounding prompts that name what you see, hear, and touch do the work breathing alone does not.
Do I need different apps for anxiety, panic, and sleep?
No, and the splitting is part of the problem. Anxiety, panic, and 3 AM wakings are one nervous system on three clocks, and the tools reinforce each other when they live together: the breath you practice daily is the one you reach for in a spike, and the journal that catches the afternoon worry is the one that shows your nights improving. Stillee is built as one app for all three, with the panic flow and the 3 AM experience free.
Can an app treat an anxiety disorder?
No, and be wary of one that implies it can. First-line treatment for an anxiety disorder is therapy, sometimes with medication, and anxiety that is shaping your days deserves professional attention. What an app can do is put the well-evidenced techniques in your hand at the hour you need them: the acute downshift, the daily practice, the record over time. Stillee is built as a companion to clinical care, not a substitute for it.
Is breathing or meditation better for anxiety?
For the acute moment, breathing. A mechanical task with an extended exhale is easier to hold than open awareness when the mind is racing, and the Stanford trial found structured breathing outperformed mindfulness meditation on mood. Meditation does slower work: it trains the relationship with the thoughts themselves, and the clinical evidence for it comes from structured eight-week programs, not from scattered sessions. They are not rivals. Stillee ships both, and most anxious users start with the breath.
What is affect labeling?
Affect labeling is putting a feeling into words. In a 2007 imaging study, Lieberman and colleagues found that naming an emotion dampened amygdala activity and engaged the prefrontal regions associated with regulation. The precision matters: "anxious" does less than "dreading the Thursday meeting." This is why the Stillee journal offers sixty-eight named states rather than five faces.
How long until a daily practice does anything?
The honest numbers from the trials: the Stanford breathing study measured its effects over one month of five-minute daily sessions, and the mindfulness literature is built on eight-week programs. Single sessions shift the next hour, not your life. The realistic promise is a modest baseline change you can see in your own mood record after a few weeks, which is exactly the record Stillee keeps.
What about anxiety at night?
Night anxiety is its own use case, and it splits in two. Racing thoughts at bedtime respond to cognitive techniques: constructive worry, defusion, cognitive shuffle. The 3 AM waking is a different state, and Stillee gives it a dedicated dim, silent surface with tracks written for the middle of the night, plus a pitch-black breathing mode paced entirely through haptics. Both guides go deeper: the racing thoughts page and the 3 AM page.
Is Stillee free for anxiety?
The parts that have to work in the worst moment are free, forever: the panic flow and the 3 AM experience. The full library, the standalone breathing Shapes, and the multi-week programs are included in the subscription. The pricing page has current details.
References
- [1] Cyclic sighing vs mindfulness, Stanford 2023. Balban, M. Y., et al. (2023). Brief structured respiration practices enhance mood and reduce physiological arousal. Cell Reports Medicine, 4(1).
- [2] Meditation programs meta-analysis. Goyal, M., et al. (2014). Meditation Programs for Psychological Stress and Well-being: A Systematic Review and Meta-analysis. JAMA Internal Medicine, 174(3).
- [3] Breathwork meta-analysis. Fincham, G. W., et al. (2023). Effect of breathwork on stress and mental health: a meta-analysis of randomised-controlled trials. Scientific Reports, 13.
- [4] Affect labeling and the amygdala. Lieberman, M. D., et al. (2007). Putting Feelings Into Words: Affect Labeling Disrupts Amygdala Activity in Response to Affective Stimuli. Psychological Science, 18(5).