# Barometric Headache Forecast vs DimLog

The clearest difference is in-app purchases: Barometric Headache Forecast at none against DimLog's 4. Barometric Headache Forecast also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). DimLog's advantage is ads (none vs shown) and update cadence (every 5 days vs every 4 weeks). On price there is nothing between them.

Both are free to download. DimLog sells 4 one-off in-app purchases. Barometric Headache Forecast asks for nothing beyond the download.

Barometric Headache Forecast ships an update every 4 weeks, DimLog every 5 days. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Barometric Headache Forecast | DimLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/barometric-headache-forecast/id6775428368/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | **Every 5 days** |
| Monetization | Ad-supported | — |
| Size | 26 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [K-Works (Apps)](https://appshunter.io/developer/1831663877) | [Kenji Morimitsu](https://appshunter.io/developer/6813826521) |

## What reviewers say

### Barometric Headache Forecast

[App page](https://appshunter.io/ios/app/barometric-headache-forecast/id6775428368)

This app forecasts headache risk based on barometric pressure changes. It displays pressure graphs, weather, and temperature for your current location or a selected city, offering a simple guide for managing pressure and weather-related headaches.

**Highlights:** Headache risk forecast (Normal, Caution, Alert), Barometric pressure graph, Caution time identification, Weather and temperature display, Current location and city selection, Shareable forecast images

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### DimLog

[App page](https://appshunter.io/ios/app/dimlog-migraine-tracker/id6815909345)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy the dev a coffee | $0.99 | one-time |
| PDF Reports | $2.99 | one-time |
| Send the dev a painkiller | $2.99 | one-time |
| Buy the dev a nap | $4.99 | one-time |


## Frequently asked questions

### Is Barometric Headache Forecast free?

Barometric Headache Forecast is free to download, with no in-app purchases.

### Is DimLog free?

DimLog is free to download, with in-app purchases available.

### Do Barometric Headache Forecast or DimLog have ads?

Barometric Headache Forecast shows ads; DimLog does not.

### Which is updated more often, Barometric Headache Forecast or DimLog?

Barometric Headache Forecast ships an update every 4 weeks, and DimLog every 5 days. Most recently, Barometric Headache Forecast was updated on October 24, 2026 and DimLog on October 26, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*