Panic Attack Apps That Work Offline: What to Look For

Updated 26 October 2026

Panicea is our app. It appears in the comparison below and is held to the same checklist as the others.

Why does it matter if a panic attack app works offline?

Because panic attacks don't wait for good signal. They happen on planes and underground trains, in lifts, on rural roads, and in packed venues where the network is overloaded. An app that needs to load anything from the internet can hang or show an error at the exact moment you need it.

Timing matters too. According to the NHS, most panic attacks last between 5 and 20 minutes¹, and the worst of it usually comes early (more on how long panic attacks last). Help that starts in the first few seconds is far more useful than help that starts after a loading screen. Attacks can also wake you at night, when you least want to fiddle with an app; see panic attacks at night.

What should you look for in a panic attack app?

These eight checks cover what matters most when you're choosing one.

1. It works in airplane mode

This is the easiest one to test and the one listings mention least. Turn on airplane mode, open the app, and start a session. If it stalls, it will stall when you're on the underground too.

2. Help starts in one tap

Choosing between options is hard when your heart is racing. The NHS advice for the moment itself is short: stay where you are if you can, breathe slowly and deeply, and remind yourself the attack will pass¹. A good app gets you to that in a single tap, not through a menu.

3. No account before help

A sign-up screen is a barrier at the worst possible time. Apps that work without an account also hold less data about you, which matters for privacy (point 5).

4. No paywall or upgrade prompt during an attack

A free download isn't the same as free help. Look for listing wording that says the in-the-moment features stay free, and be wary of apps that put their SOS feature behind a subscription or show an upgrade screen before a session starts.

5. What you write stays private

Many panic apps include a journal, and what goes in it is sensitive. Mozilla's 2023 review of mental health apps gave privacy warning labels to 59% of the top apps it investigated, and found 40% had got worse since the year before⁴. The American Psychiatric Association's app evaluation model suggests checking for a clear privacy policy you can read before using the app, and whether it collects or transmits sensitive data³. Apps that keep entries on your device are the safer default.

6. It's still maintained

The same APA model asks whether an app has been updated in the last 180 days³. An app that hasn't been updated in years may still work, but it's more likely to break on a newer phone, and nobody may be fixing it.

7. It uses established techniques and is clear about its limits

Slow breathing, grounding, and muscle relaxation are standard self-help techniques. The NHS publishes a simple breathing exercise for stress², and you can read more about how techniques like the physiological sigh and box breathing compare. Be wary of any app that promises to cure panic. NICE lists self-help among the effective options for panic disorder and recommends that people using it have contact with a health professional who can monitor how it's going⁵.

8. It can connect you to a person

Sometimes the most useful thing an app can do is make it easy to call someone you trust. A saved emergency contact or a "call someone" button on the session screen is worth looking for.

How do popular panic attack apps compare?

The table below uses each app's own US App Store listing, checked on 26 October 2026. "Not stated" means the listing doesn't say, not that the app lacks the feature. Apps change, so check the current listing and test the app yourself.

A few things stand out:

• Offline: only Panicea's listing says outright that it works offline. The others may well work offline too, but you'd need to test them.
• Free help in the moment: Panicea, Panic Relief, and Calm SOS all say their in-the-moment help stays free, and PanicShield is free in full.
• Maintenance: PanicShield was last updated in February 2020 and Serene in December 2023, well outside the APA's 180-day check.
• Depth: Rootd and DARE have the largest followings (over 10,000 and over 6,800 ratings respectively) and offer longer programmes, with full access through a subscription.

Can an app replace treatment for panic attacks?

No. An app is a self-help tool. If you've been having panic attacks, the NHS advises seeing a GP, and in England you can refer yourself directly to a talking therapies service for cognitive behavioural therapy (CBT)¹. NICE recommends CBT as a psychological treatment for panic disorder⁵. A good app sits alongside that and helps in the moments in between.

What can you do during a panic attack without an app?

The NHS suggests staying where you are if possible, breathing slowly and deeply, reminding yourself that the attack will pass, and focusing on calming images¹. Grounding helps too: the 5-4-3-2-1 technique uses only your senses. If you're worried about overbreathing, read about hyperventilation during breathing exercises.

App details in the comparison table come from each app's US App Store listing, linked in the table, checked 26 October 2026.