Leaving your migraine tracker doesn't mean losing three years of data.

The tab you keep open out of fear

Three years of logged attacks sit inside an app you have stopped trusting. The ads showed up first. Then the paywall crept over features that used to be free, and now recording a rough morning feels like feeding something that quit working for you. Still, the uninstall button feels radioactive. Delete the app and you lose the timeline your neurologist actually reads from, the one built across years of foggy afternoons and 4 a.m. entries logged one-handed in a dark room. So you keep it, tab open, quietly resented. Not out of loyalty. Out of the fear that walking away means starting your medical history over at zero.

The history hostage

What keeps people opening an app they resent is one quiet assumption: that the history lives inside the app. It lives on your device the moment you export it, with no more claim on it than a camera roll has on your photos. We call this the history hostage. The switching cost is almost entirely psychological, propped up by an export button buried three menus deep and a low dread that the numbers will not survive the move. The lock on the door is real enough. What it is guarding already walked out with you the first time you tapped export.

Starting over is a story the format tells you

The fear that switching wipes your baseline is manufactured, and the export format is what manufactures it. Migraine Buddy, the app most people in this position are leaving, will generate a tidy report you can hand to a doctor. That report looks like proof your data is safe. It reads well on paper and imports into nothing useful. When the thing you are handed is a document rather than a dataset, the quiet message is that you may read your data, you may print it, you may not carry it somewhere better. That is lock-in doing its job while wearing the costume of a favor. Understanding this one distinction changes every step that follows.

A PDF is a photograph of your history. It is not your history.

Can you actually export your data from Migraine Buddy?

Yes, with a catch worth understanding before you delete a single entry. The community has been loud about this. Search r/migraine and the recurring 'deleted Migraine Buddy and I feel so free' threads are easy to find, and they almost always turn, a few comments down, to the real question: did the history come along, or did it stay behind. The answer rides entirely on the export format. A human-readable report tells your neurologist the story of your year. A structured file lets a new app rebuild that story attack by attack, timestamp by timestamp. Same underlying data, two very different fates, and knowing which file you are actually holding is the whole decision.

What migrating actually looks like

Picture the move end to end. You pull the export out of the old app. You hand that file to a migration tool that reads its structure and maps each field, attack dates, trigger tags, medication entries, pain scores, onto the matching field in the new app. A couple of minutes later the timeline is intact, and the next entry you make lands on top of years of history instead of a blank first screen. There is no afternoon lost to retyping. There is no baseline quietly reset to day one. The record you built through brain fog, on the days when logging anything at all took real effort, stays yours and stays continuous.

Lock-in only works if you believe it

Once migration is a solved problem, the retention model built on trapped data quietly collapses. An app can no longer hold you by sitting on your history. It has to hold you by being worth opening tomorrow. That shifts the actual question in front of you. It stops being whether you can afford to lose three years of data and becomes which tracker records the part of the attack that wrecks your week. For a large share of people that part is the after-phase, and most trackers close the file the instant the pain score touches zero, as if the headache ending and the person recovering were the same moment.

Where the postdrome fits

This is the gap we built Postdrome around. It imports the history you are afraid to lose, then keeps recording where your old app went quiet: the residual photophobia, the neck stiffness, the brain fog and flattened mood that trail an attack for a day or three. Your years of entries carry across, and the after-phase finally sits on the same timeline as the headache instead of vanishing into an untracked 72 hours. Pricing is lifetime, stated up front, so there is no later paywall creeping over what used to be free. Your record stays on your device rather than on someone's server. Leaving the old app stops feeling like loss and starts feeling like the obvious move.