NutriSpy
Almost every ring, watch and nutrition app can hand its data to Apple Health or Health Connect, and NutriSpy reads it from there. The switch that starts it sits in the other app.
Apple Health on iPhone, Health Connect on Android. It belongs to no single manufacturer: every app may put data in, and every app may take data out — with your permission.
NutriSpy cannot ask Oura or Garmin Connect for anything. It only ever sees what their app has already written to the hub. This is the step almost everybody misses.
In NutriSpy under Settings → Data sync. Reading costs nothing — your diary stays free whether you type it or your watch fills it.
Health → Summary → your profile picture → under Privacy tap Apps, then pick the app. An app shows up here only once it has asked for access itself — so if yours is missing, the switch is still off inside it.
Health Connect → Permissions and data → App permissions → pick the app → Allow all, or one data type at a time. On Android 14 and newer, Health Connect is part of the system settings.
This is the half that stays true when a manufacturer rearranges its menus. If a path further down no longer matches what you see, come back here.
Your nights arrive with their sleep stages, and your steps too. The Readiness score stays inside Oura — no hub has a field for it. Oura asks for an active membership.
Sleep with its stages and your steps come across. Body Battery, training load and HRV status stay inside Garmin — Garmin holds those back on purpose.
Your nights arrive, but without their stages, and Whoop passes on no step count at all — for steps NutriSpy falls back on your phone.
This is the app that used to be Fitbit. It only learned to write to Apple Health in August 2026, so update first if you cannot find the entry. It is also the one wearable app that hands your meals on as well as your nights.
Nights with their stages, steps and even your meals come across. One catch of Samsung's own making: calories and distance only travel from a recorded workout, never from the daily activity tracker. Steps are the exception and always arrive.
Worth knowing before you wonder: Health Connect receives your sleep stages, Apple Health only the duration and the times you fell asleep and woke up.
On iPhone Withings does not sync on its own — Withings says so itself. Open the Withings app, open Health, come back to Withings and pull down to refresh. Without that ritual your data simply stays old.
Android carries the whole nutrition record over; Apple Health takes only a handful of nutrients, so what reaches NutriSpy on an iPhone is thinner than what you see in Cronometer.
Meals arrive as a summary per meal, not as single foods, and only from the day you connect. What you logged before that stays behind.
Yazio connects to one other app at a time, so if you already pointed it somewhere else, that connection goes first.
Sleep Cycle hands your nights on but takes none back, so a night it missed cannot be filled in from the hub.
A few apps work the other way round and are switched on from the hub instead — if you cannot find anything to share in your app, look for its name in the lists above.
Then the hub is empty for those days, and the cause is almost always one switch in the other app rather than anything in NutriSpy. Find your app above, turn sharing on, and check on the platform page that it now appears in the list. Give it a day: most apps only hand over a night once they have finished working it out.
No. Reading your data from Apple Health or Health Connect is free, and so is the diary it fills. Premium is for the interpretation — the explanations and recommendations NutriSpy builds on top.
Because every manufacturer counts differently, and Withings and Samsung Health both say so in their own help. NutriSpy takes the larger of the two numbers it can see, so a walk you logged by hand is never lost to a smaller daily total.
Yes, and it is worth it when one app knows your nights and another your meals. If two of them describe the same night, NutriSpy recognises it as one night instead of counting it twice.
To your diary, and nowhere else. NutriSpy reads only the data types you allowed, never passes your health data to advertising platforms or data brokers, and you can switch any of it off again at any time — in NutriSpy, or on the platform page above.
One less thing to type, every morning.
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Menu names change with app versions and languages. If a path no longer matches what you see on your phone, the platform section above is the reliable place to look.