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Dim vs Migraine Buddy
Migraine Buddy (by Aptar Digital Health) and Dim are both migraine diaries for iPhone, built around different ideas. Here is how they compare, with a source for every Migraine Buddy detail.
Side by side
| Dim | Migraine Buddy | |
|---|---|---|
| Account | No account. Data stays on your device and in your private iCloud | Required to access your data, per the privacy policy source |
| Apple Watch app | Yes: log and end attacks from the Watch | No Apple Watch app source |
| Logging without opening the app | Lock Screen widget, Live Activity and Apple Watch | Not stated |
| Automatic weather and pressure | Yes, with location permission: weather, pressure and pressure trend | Yes, with location: humidity, pressure, temperature; advanced weather reports are MBplus source |
| Apple Health | Reads sleep and headaches; writes headache entries | Reads sleep and other health data (MBplus); writing back not stated source |
| Doctor report | Yes (Dim Pro): headache days, medication days against ICHD-3 overuse thresholds, MIDAS, calendar, attack list | Diary export and a Migraine Impact Report; medication-overuse and MIDAS content not stated source |
| CSV export | Yes (Dim Pro) | Not stated |
| Where your data is stored | On device, synced through your own private iCloud | Cloud servers in the EU, US and Singapore, partly on AWS source |
| Use of your data | Diary data is not sold or shared for research | Anonymous statistics may be shared with third parties and researchers source |
| Price | Free core diary; Dim Pro monthly or annual subscription (local price shown in the App Store) | Free tier; MBplus from $9.99/month or $69.99/year in the US App Store source |
| Languages | 19 languages | 9 languages source |
| App Store rating | New: awaiting App Store review | 4.8 ★ from 42,213 US ratings · last updated 2026-10-09 source |
Where Migraine Buddy is stronger
- A large community: 4.8 stars from about 42,000 US ratings.
- Runs on iPhone, iPad, Mac and Apple Vision Pro.
- A broad free tier, plus community features and a 7-day weather forecast.
Where Dim is different
- Logging at the worst moment. One tap from the Apple Watch, a Lock Screen widget or the Live Activity; details can wait until the attack is over.
- Context without typing. Weather, barometric pressure and its trend, and last night's sleep are captured for you when permissions allow.
- The numbers neurologists ask for. Headache days per month, acute-medication days checked against ICHD-3 overuse thresholds and a MIDAS score, on two printable pages. See a sample report.
- No account. Your diary lives on your device and in your own private iCloud.
Which should you choose?
Pick Migraine Buddy if you want a large community and cross-platform access and are comfortable with a cloud account. Pick Dim if you want to log from your Watch or Lock Screen without an account, and want medication-overuse days and MIDAS in the report.
Questions
Is Dim better than Migraine Buddy?
It depends on what you need. Pick Migraine Buddy if you want a large community and cross-platform access and are comfortable with a cloud account. Pick Dim if you want to log from your Watch or Lock Screen without an account, and want medication-overuse days and MIDAS in the report.
Does Migraine Buddy need an account?
Required to access your data, per the privacy policy. Dim works without an account.
Does Migraine Buddy have an Apple Watch app?
No Apple Watch app. Dim has an Apple Watch app for logging and ending attacks.
See what Dim gives your neurologist
Three months of attacks on two pages: headache days, medication days against overuse thresholds, MIDAS and the full attack list.
See a sample reportNo account · No ads · Nothing sold
Competitor details were checked on 26 October 2026 against each app's US App Store listing and the developer's own website and privacy policy; each row links to its source. "Not stated" means we found no primary source, not that the feature is missing. Apps change often, so check the App Store before you decide. Trademarks belong to their owners; Dim is not affiliated with any app listed. Spotted something out of date? Email support@arvetechapps.com.