Whether your readings are safe depends on where they were when the app died. Readings already syncing to Apple Health are stored on your iPhone, not the vendor's servers, so a shutdown does not remove them. Readings that lived only in the vendor's app or servers are not recoverable through Apple Health. From today, keep weighing and write to Health.
Trendline is an iPhone app that reads Apple Health. This page is for owners of scales whose companion app has been discontinued or pulled from the App Store.
First, the thing nobody says plainly enough: losing an app you built a habit around is a real loss, and it wasn't your fault. You did the tracking. The company stopped holding up its end. What follows sorts the damage honestly — because the answer genuinely differs depending on where your readings were living when the lights went out.
Three situations. Don't let anyone blur them.
Situation A — your readings were already syncing to Apple Health. They are safe. Apple Health data is stored on your iPhone, and in iCloud if you sign in with an Apple Account (Apple: back up your Health data), not on the vendor's servers. A shutdown does not remove it. You can delete it yourself, and an app can delete only the samples it wrote, only while you still allow it to write (Apple's HealthKit documentation). Open Health → Browse → Body Measurements → Weight and look (Apple's guide): if your history is there, it's yours, and other Health-reading apps can pick it up once you give them permission. This is the rescue that actually works, and it works because it happened before the shutdown.
Situation B — you're starting from today. Your scale still measures; a dead app doesn't change the physics of a load cell. You can weigh every morning and add the reading to Apple Health by hand. A manual entry becomes part of your Health history, and by default Health prioritizes manually entered data above data from apps and Bluetooth devices (Apple Support). Or, where owners report a compatible app for your hardware (see ABYON below), pair with that and let it write to Health going forward.
Situation C — your history is locked inside the dead vendor's app or cloud. This is the hard one, and we won't soften it: readings that only ever lived in a vendor's app or on its servers are not recoverable through Apple Health. Health can't read a defunct database; neither can we, and neither can anyone selling a miracle. If the vendor offered a data export while it was still alive, that was the moment — and if the servers are down, that window may already be closed. What you can do is stop the loss at today's date: your history from here forward can live somewhere no company can take with it when it goes.
Qardio: what a shutdown looks like
Qardio made the QardioBase smart scale, and its service stopped without a clear notice. Technodabbler's account reports that a Dutch trustee report says Qardio Netherlands B.V. entered bankruptcy on its own request after funding from Qardio, Inc. stopped, and that no formal public statement explained the end of consumer services. We have not read the trustee report ourselves, and it names the Dutch company, not Qardio, Inc. In an Apple Support Communities thread, an owner reported the Qardio app missing from the App Store on September 21, 2024; later posts say it reappeared under the name "qardio heart health", and one notes the company's support link still did not work (Apple Support Communities). As of October 18, 2026, the US App Store address for that listing returns "not found". A July 2025 post in another thread says the app would not connect with Qardio's servers (Apple Support Communities).
Where that leaves QardioBase owners: the scale can still display weight locally, according to Technodabbler, so Situation B is open. Owners whose Qardio app had been writing to Apple Health are in Situation A: that history is in Health. History that lived only in Qardio's cloud is Situation C. While the app still worked in 2024, one owner in the thread said you could save your measurement history by sending it to your email from the history screen's share button (same thread). That is past tense, one owner's tip, and with the servers unreachable we make no promises about that route now.
ABYON: the app that vanished mid-habit
ABYON's own app is gone: its former App Store and Google Play listing pages both returned "not found" when we checked on October 18, 2026. Owners in a community thread describe finding the app missing at the end of 2024, and one says they lost nearly five years of readings (Apple Support Communities, posts from December 2024 to April 2025). The thread is worth reading in full if this is you, because its news is mixed and useful. All of it is owner reporting, not vendor information:
- The hardware may not be orphaned. One owner recommends Feelfit as compatible, and two others say they connected their ABYON scales to it. Feelfit is still maintained, with details on our Feelfit page, and one owner says it syncs with Apple Health, which they say ABYON never did as far as they could tell. Feelfit's own listing does not mention ABYON.
- The old history mostly is. One owner reports that Feelfit cannot access the data inside the old ABYON app, which is why so many owners are in Situation C. Another owner, in April 2025, says they could still see ABYON measurements in Apple Health's data and its export, so check Health before assuming nothing was synced. New readings in Feelfit start from the day you pair.
That gap in the record stings. It's also the last one: readings written to Apple Health from here on are stored outside the vendor's servers.
Healthkeep: the scale outlived its own brand's app
Healthkeep's app recommendation depends on the scale model. The Bluetooth body fat scale page we cited directs buyers to Fitdays, the white-label app, and says its data syncs with Apple Health (Healthkeep product page). Another Healthkeep scale page says its weight and BMI data sync to the Feelfit app (Healthkeep BMI scale page). An app named Healthkeep Pro is also listed on the App Store, and its listing does not mention Apple Health (Healthkeep Pro listing); we do not know whether it is related to your scale. Follow the product page or manual for your exact model. Fitdays setup, sync limits, and fixes are on our Fitdays page.
Starting this week, shutdown-proof
Whichever situation you're in, the way forward is the same three moves:
- Check Health first. Health → Browse → Body Measurements → Weight. You may be pleasantly surprised by what synced before the end.
- Keep weighing. Pair with a documented compatible app where one exists, or enter readings by hand. Either way, the destination is Apple Health, which is part of iOS and not run by the scale vendor.
- Pick apps by their exit. Before trusting any new scale app, check that it writes to Apple Health. The one lesson these shutdowns teach is that the app is temporary and the record shouldn't be. Keep iCloud Health sync or a backup of your iPhone on, because no digital record is literally permanent. The fuller argument is here.
Trendline reads the weight, body-fat, and lean-mass history already in your Apple Health — including everything a discontinued app managed to write before it went — and accepts manual entries directly, so a scale with no app at all can still feed a careful trend.
Try the idea
If some of your history survived — in Health, in an old export, even in a notebook — paste a few weeks of it into the free weight trend calculator. It runs in your browser, nothing uploads, and it shows the raw weigh-ins against a deliberately slower signal. The bounce in the raw line is variation; the slower line is what your record was always trying to tell you.
Questions people ask
Are my readings safe if my scale's app was discontinued?
If they were already syncing to Apple Health, they are stored on your iPhone (and in iCloud if you sign in with an Apple Account), not on the vendor's servers, so a shutdown does not remove them. You can delete them yourself, and an app can delete only the samples it wrote, only while you allow it.
Can I recover weigh-ins that were only in the dead app?
Readings that only ever lived in a vendor's app or on its servers are not recoverable through Apple Health. If the vendor offered a data export while it was still alive, that was the moment, and if the servers are down that window may already be closed.
Can I keep using my scale after its app disappears?
A scale whose app is gone can generally still display weight on its own, though that depends on the model. You can weigh every morning and add the reading to Apple Health by hand, or pair with a compatible app where owners report one for your hardware.
What can ABYON scale owners do now?
ABYON's own App Store and Google Play listings returned not found on October 18, 2026. In a community thread, one owner recommends Feelfit and two say they connected their ABYON scales to it; one says Feelfit syncs with Apple Health. These are owner reports, since Feelfit's listing does not mention ABYON. Another owner reports Feelfit cannot access the old ABYON app's data, and one owner says ABYON measurements were visible in Apple Health, so check Health before assuming the old history is gone.
What happened to the Qardio app?
An owner reported Qardio's app missing from the App Store on September 21, 2024, and later posts say it reappeared as "qardio heart health". A July 2025 post says it would not connect with Qardio's servers (Apple Support Communities), and its US App Store address returns not found as of October 18, 2026. Technodabbler reports that the Dutch entity Qardio Netherlands B.V. entered bankruptcy and that the scale still displays weight locally.
Sources
- Technodabbler: what happened to Qardio (bankruptcy report, no formal announcement, local weighing still works)
- Apple Support Communities: Qardio app can't connect to servers (July 2025 post)
- Apple Support Communities: Qardio app missing from the App Store (2024; export-while-you-can discussion)
- Apple Support Communities: ABYON app gone; owner reports of Feelfit pairing; ~5 years of data lost
- Healthkeep product page (Fitdays, Apple Health)
- Healthkeep BMI scale page (Feelfit)
- App Store: Healthkeep Pro
- Apple: back up your Health data (iCloud)
- Apple Support: manage Health data (manual entry, source priority)
- Apple: HealthKit delete (an app deletes only what it saved)
- Apple: view your health data on iPhone
Trendline is not affiliated with or endorsed by Qardio, ABYON, Healthkeep, Feelfit, Fitdays, or any vendor named on this page. Vendor and service status change; everything above was verified against the linked pages on October 18, 2026.