# Calmsky: Pressure & Headache — Weather sensitivity forecast

> Weather sensitivity forecast (iPhone/iPad app by Borys Bilyi.)

- Source: https://appshunter.io/ios/app/calmsky-pressure-and-headache/id6825479088 (this page in markdown: same URL + `.md`)
- Developer: [Borys Bilyi](https://appshunter.io/developer/6822735027)
- Category: Weather, Health & Fitness
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 5 MB
- Languages: American English, Czech, French (France), Georgian, German (Germany), Italian, Japanese, Kazakh, Korean, Polish and 6 more
- Released: 2026-10-26
- Data updated: 2026-10-29

## What is Calmsky?

Calmsky watches the air pressure for you and warns you before it changes sharply — so a pressure drop does not take you by surprise.

THE SKY TELLS YOU
The whole screen is a sky: calm blue when the pressure is steady, a soft grey-violet before it falls, warm light when it rises. One big number, one plain sentence, and the pressure wave for the next 48 hours with the sharp changes gently marked.

A WARNING IN ADVANCE
When the pressure is about to change by more than 6 hPa in 6 hours, Calmsky tells you 3 hours ahead — even when the app is closed. Time to plan your day and take care of yourself.

"HOW DO I FEEL?" IN ONE TAP
Note how you feel: good, so-so, headache or unwell. Calmsky keeps the pressure of that moment next to it. After ten entries it looks for your own trigger, for example: "So far it looks like you feel worse when the pressure falls faster than 4 hPa in 12 hours."

FOR YOU AND YOUR DOCTOR
A PDF report for the last month: your diary next to the pressure, ready to share or print.

MAGNETIC STORMS
The Kp index three days ahead, from NOAA's Space Weather Prediction Center.

WIDGETS AND APPLE WATCH
The pressure on the Home Screen, the Lock Screen and your watch face. On Apple Watch — the wave and the diary on your wrist.

YOUR WAY
hPa, mmHg or inHg. Five sky themes. Several towns for trips or for family far away. 16 languages.

PRIVATE BY DESIGN
No account, no ads, no tracking. Your diary stays on your iPhone. Your location is used only to get the forecast for where you are.

FREE AND PRO
Free: the 48-hour wave, the pressure now, the standard warning, the diary, a small widget and the watch complications.
Calmsky Pro — one purchase, yours forever, no subscription: all widgets, the 7-day forecast, your own warnings (threshold, timing, quiet hours, an evening note about tomorrow), "my trigger", magnetic storms, several towns, the doctor's report, sky themes, and the wave and diary on Apple Watch.

Calmsky is not a medical device and does not give medical advice. If you feel unwell, talk to a doctor.
Weather data: Apple Weather.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Calmsky Pro | $9.99 | one-time |


## Is Calmsky safe?

Not enough ratings yet to assess Calmsky.

## Is Calmsky legit?

Calmsky: Pressure & Headache has limited verification signals. The AppsHunter Legitimacy Score for Calmsky is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.1 — 2026-10-28

Small improvements and fixes. Enjoying Calmsky? A rating on the App Store helps us a lot — thank you!

### 1.0 — 2026-10-27

No release notes.

## More apps by Borys Bilyi

- [Sizzle: Grill Timer & Planner](https://appshunter.io/ios/app/sizzle-grill-timer-and-planner/id6824038394)
- [Healday: Get Well Day by Day](https://appshunter.io/ios/app/healday-get-well-day-by-day/id6826315959)

All apps by Borys Bilyi: https://appshunter.io/developer/6822735027

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-29.*