Your daily scale weight fluctuates unreliably, but your "moving average" weight is a meaningful weight loss tracker.
You see, scales are great for weight loss tracking because:
But scales are terrible for weight loss tracking because:
The moving average maximizes the scale's benefits while neutralizing its weaknesses:
If you follow these two rules, Happy Scale will help you paint a very smoothed-out picture of your weight-loss journey!
Nope. You can weigh in less frequently, like once a week.
The advantage of weighing daily is that more frequently you weigh in, the better the smoothing and predictions will be. But you should do whatever works best for you psychologically!
Happy Scale is built on the philosophy that you should never feel reluctant about stepping on the scale. And it can be heartbreaking to see a bigger number today than you saw yesterday!
Happy Scale emphasizes your 10-day-best to counteract your body's natural weight fluctuations. Every time you hit a new record low, you have up to ten days of dealing with pesky fluctations before you need to hit a new low weight.
It depends on how you think about your weight loss progress psychologically.
For some people, if they see a new all-time low number on the scale, that number is burned into their heads. 172.4 today! Woo! If that sounds like you, choose "10-day-best" tracking.
For some people, seeing the number on the scale stay the same (or sometimes go up) from day to day is really de-motivating. They feel like giving up because the scale won't budge. If that sounds like you, choose moving average tracking.
Moving average weight mode uses a trend predictor to predict what your weight is, and this usually results in a pretty smooth downward line. Instead of plateauing for 6 days and then losing 0.6 all at once, moving average weight mode is more likely to say you're losing 0.1 pounds all 6 of the days. You get to the same place, but it smooths it out.
Your moving average is sometimes better than your 10-day-best because Happy Scale uses a “double-exponential” moving average.
A double-exponential moving average applies a moving average to the daily trend, too. So let's say that over the last ten days you've lost, on average, 0.1 per day. Happy Scale will subtract 0.1 from yesterday's moving average, and then average in today's weigh-in. So your trend line can take on a bit of temporary “downward inertia” to push through mini plateaus.
So why does Happy Scale do this? Well, because a simple moving average tends to predict what you weighed a few days ago, and not what you weigh today. Consider if your last 5 weigh-ins were 202, 201, 200, 199, and 198. The average of those 5 numbers is 200, right? But your weight today is 198. Moving averages tend to lag behind in their predictions by a few days because the data points are all historical (and none are in the future to balance them out), and this technique compensates for that.
Will this technique predict that you're losing weight if you plateau for a month? No, because the trend moving average is also being recalcuated every day. If you plateau for more than a few days, Happy Scale will stop predicting that you're losing weight.
Some users don’t want this behavior. If you’d like to change Happy Scale to instead use a simple moving average, you can do so by going to:
Settings > Miscellaneous settings > Advanced settings and turning off “Advanced lag compensation.”
Note that if you do this, your moving average line will tend to ride “above” your weight loss progress by a little bit of weight.
You can track multiple user profiles on a single device:
Sometimes your weight loss journey needs a fresh start. Here's how to do it:
This will hide your old entries, but it will not delete them. You can see your older entries at any time by turning the Fresh Start mode off.
The colored sections on the graph compare your weight to where it was 30 days ago.
If you have a green section above your line, its thickness represents how much you've lost in the last 30 days. Likewise, a red section below your line represents how much you've gained in the last 30 days.
You can modify how many days ago to compare to by tapping the gear icon in the upper–right of the Weight Chart card and modifying the 'Highlight progress over...' setting.
No. Happy Scale requests limited access to Dropbox and can only see its own files. It also cannot see your Dropbox email address nor your Dropbox password.
No. The only way a profile will be deleted from your device using sync is if another synced device deletes your profile.
It's okay to use Happy Scale and make changes while it is disconnected from the Internet. Sync will resume when you reconnect.
If you recently synced two devices, but they are not showing the same data, then you may be looking at two different user profiles. Try tapping the "Logout" button in the upper–left, and see if there are multiple profiles listed.
If your devices are no longer syncing, then make sure the "Sync devices using Dropbox" switch in the Settings is turned on.
If your devices report errors every time you try to sync, and you have access to a device that still has all of your data on it, then tap the Troubleshooting menu, and then select "Remove Happy Scale sync data from Dropbox" and then "Revoke Dropbox authorization". Once you've done that, try turning the sync switch on again.
If you still experience issues, please contact Happy Scale Support.
Happy Scale can automatically export all your weight entries to the Health app, and it can also import weight entries from other apps.
When importing entries, Happy Scale will only import one weight per day. If there are multiple weight entries for a day, Happy Scale will import the lowest weight entry, as this is the best way to estimate your moving average.
Happy Scale considers your weight for a date to be the lowest weight you achieved that day, and it does not collect information about the time of day when you achieved that weight. Therefore, when exporting weight entries, Happy Scale will record all entries as being at noon on a given day.
Happy Scale can only sync one profile per device to the Health app. If you turn on Health sync for a user profile, and then turn it on for a different user profile, Happy Scale will disable Health sync for the original profile.
Happy Scale will import and export all records to the Health app every time you launch the app.
Having issues with Health app sync?
Ensure that you have granted Happy Scale permission to access your Health app database.
Is Happy Scale not seeing weight entries from your other apps?
There seems to be a system-level issue with buying in-app purchases for some users. Here's how to fix it: