Comparison

Calmgrid vs Headache Forecast

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Calmgrid

Features
Read full description

Log a migraine in under a minute. See your real triggers. Export a doctor-ready report — while your health data stays private on your device. Calmgrid turns scattered attacks into a clear pattern: what set them off, what helped, and what to tell your doctor. ------------------------------------------------------- WHY CALMGRID? ◆ Log fast, even mid-attack A guided wizard captures the full picture in under 60 seconds. Skip any step. ◆ Discover what actually triggers you Weather, stress, sleep, caffeine, hormones, food — see which factors line up with your attacks. ◆ Make doctor visits count Export a clean PDF report: frequency, severity trends, top triggers, medication effectiveness, days impacted. ◆ Know what helps Rate medications and relief methods per dose. Stop guessing what works. ------------------------------------------------------- WHAT YOU CAN TRACK • Date, time & duration • Severity (3-point or 10-point scale) • Pain location (front, back, temples, custom) • Symptoms (nausea, light sensitivity, aura + custom) • Triggers (stress, sleep, weather, food, hormones + custom) • Medications with dose, timing & effectiveness • Relief methods that worked • Impact on work, sleep & social life ------------------------------------------------------- INSIGHTS & REPORTS Free: • Attacks per week • Severity distribution • Duration averages • Weekday patterns Pro: • Top triggers ranked • Top symptoms ranked • Medication effectiveness breakdown • Time-of-day analysis • PDF export for doctor visits • Custom date ranges ------------------------------------------------------- PRIVACY-FIRST BY DESIGN Your migraine data stays on your device. No account required. No cloud sync. Your health entries are never sold, shared, or used for advertising. • Offline-first architecture • Local encrypted storage • Export your data anytime • Delete everything with one tap To keep improving Calmgrid, we collect anonymous usage statistics and crash reports — never the content of your health entries. You can turn this off in Settings anytime. ------------------------------------------------------- BUILT FOR MIGRAINE SUFFERERS • Dark mode reduces strain during attacks • Quick logging when you're in pain • Skip any step — flexibility when you need it • Haptic feedback for intuitive interaction • Calm, low-contrast interface • Available in 39 languages ------------------------------------------------------- FREE VS PRO Free: Track attacks, basic insights, calendar view, custom lists Pro: Unlimited tracking, advanced analytics, medication effectiveness, PDF export, time-of-day patterns Start free. Upgrade when the insights pay off. ------------------------------------------------------- Download Calmgrid today. Understand your migraines. Take back control. Questions? hi@calmgrid.app Privacy Policy: https://calmgrid.app/en/privacy/ Terms of Service: https://calmgrid.app/en/terms/

About

Headache Forecast

Read full description

Find your unique pain patterns through barometric pressure changes and headache logs. This app is a dedicated application combining weather forecasts and physical condition tracking, developed for those suffering from headaches (weather pains, meteoropathy, migraines) caused by barometric pressure fluctuations. It supports you in taking countermeasures before the pain worsens by grasping in advance the timing of significant pressure drops. ## Main Features ・High-Precision Barometric Pressure Forecast Graph Equipped with an intuitive graph that allows you to check future barometric pressure changes at a glance. It visually highlights and notifies you of the pressure warning zones (such as sudden pressure drops) where headaches are likely to occur. ・Barometric Pressure Drop Alert (Push Notifications) Before the barometric pressure changes suddenly, it will notify you with a push notification on your smartphone. It makes it easier to notice weather changes even when you are out, allowing you to take proactive measures such as preparing your medication before the pain occurs. ・Easy Headache and Medication Log When you feel pain, you can quickly log the pain intensity and the medication you took (timing of medication). We have adopted a simple design that reduces the burden of input so that you can continue to use it every day. ・Pain Analysis and Review You can cross-reference past weather and barometric pressure data with your headache logs. Understand the conditions and trends under which your pain is likely to occur, and use it to improve your lifestyle habits. ・User-Friendly Customization Flexible customization according to the user's preference is possible, such as switching to an eye-friendly dark mode and changing the barometric pressure units (hPa, inHg, etc.) and temperature units. ## Recommended for These People Those Who Get Headaches or Feel Sluggish on Rainy Days or When a Typhoon Approaches (Meteoropathy, Weather Pains) Those Who Want to Understand the Patterns and Triggers of Their Migraines Those Who Want a Guideline for When to Take Medication Those Who Want to Easily Log Daily Physical Condition Changes Instead of Using a Notebook Those Who Are Looking for a Stylish and Easy-to-Use Healthcare App ## Important Notes This app supports physical condition management based on the user's own records and weather forecast data, and is not a substitute for diagnosis, treatment, or prevention by a medical institution. If you have health concerns or pre-existing conditions, please be sure to consult a doctor or medical institution. --- Terms of Use https://www.knecht.co/guidelines/terms-of-service Privacy Policy https://www.knecht.co/guidelines/privacy-policy

Screenshots

Calmgrid4 screens
Headache Forecast4 screens

Verdict

The call

The clearest difference is update cadence: Calmgrid at every 3 days against Headache Forecast's every 11 days. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Calmgrid sells 5 in-app purchases, starting at $6.99 per month and Headache Forecast sells 8 in-app purchases, starting at $3.69 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Calmgrid ships an update every 3 days, Headache Forecast every 11 days. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

Scorecard1 real difference · 5 level
Calmgrid versus Headache Forecast: the parameters behind the verdict, then further details
ParameterCalmgridHeadache Forecast
PriceFreeFree
Update frequencyEvery 3 days — betterEvery 11 days
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better16.6
Further details — not scored
Size56 MB79 MB
Age rating12+17+
DeveloperUgur Ozan YildizKnecht, Inc.

In-app purchases

5 purchases

Calmgrid

Subscriptions5
  • Premium (Monthly)7 Days trial$6.991 Month
  • Premium (Monthly)7 Days trial$7.991 Month
  • Premium (Annual)7 Days trial$29.991 Year
Show 2 more
  • Premium (Annual)7 Days trial$39.991 Year
  • Premium (Yearly)7 Days trial$59.991 Year
8 purchases

Headache Forecast

Subscriptions8
  • Premium (Monthly)$3.691 Month
  • Premium (Monthly)$5.391 Month
  • Premium (Monthly)$6.791 Month
Show 5 more
  • Premium (Monthly)$8.791 Month
  • Premium (Annual)$25.901 Year
  • Premium (Annual)$37.901 Year
  • Premium (Annual)$48.001 Year
  • Premium (Annual)$61.901 Year

Questions

Is Calmgrid free?
Calmgrid is free to download, with in-app purchases available.
Is Headache Forecast free?
Headache Forecast is free to download, with in-app purchases available.
Do Calmgrid or Headache Forecast have ads?
Neither Calmgrid nor Headache Forecast shows ads.
Which is updated more often, Calmgrid or Headache Forecast?
Calmgrid ships an update every 3 days, and Headache Forecast every 11 days. Most recently, Calmgrid was updated on November 5, 2026 and Headache Forecast on November 9, 2026.

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