A range, not a single number
Loopa charts your weight trend against your goal weight. It has no maintenance-band setting: the range is a way of reading the chart, not a feature.



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Join with a codeUse as much or as little tracking as you need to notice long-term drift while letting ordinary day-to-day fluctuations remain ordinary.
Weight, food, hydration and recent trends are available in Loopa Basic.

Loopa Basic
A fat-loss phase often has a defined direction. In maintenance, readings are expected to wander, and what matters is where the trend sits over months.
Loopa charts your weight trend against your goal weight. It has no maintenance-band setting: the range is a way of reading the chart, not a feature.
The outcome is a trend that stays roughly where you want it, and a small drift noticed while a small change can still address it.
At a maintain pace, setup estimates resting energy and multiplies it by an activity factor, with no deficit. Adjust from the trend.
Maintenance does not need every tracker running every day. These are the ones that tend to matter.
Every weigh-in, with a smoothed trend line over a rolling 30 days in Basic and your whole history in Premium.
Food and macro logging whenever you want context, with no requirement to log every day.
Activity you log yourself, and vitals such as blood pressure, glucose and sleep hours, are in Basic.
Loopa is a tracker, not a medical service. Its targets and forecasts come from equations and the product’s configured planning limits, and they are not a judgment about what is right for you. People with medical conditions, pregnancy, an eating-disorder history, medication effects, bariatric surgery or other circumstances may need individualized professional guidance.
These are ways to use Loopa, not modes the app switches for you.
During a drift or a transition: food, weight and activity, most days.
Once the trend is stable: weigh in regularly and log food only when you want context.
Every few weeks, look at the longer trend or, on Premium, a personal report.
A day with no entries ends the logging streak. Targets, history and the trend carry on.
Maintenance is a goal many people run on Basic. Neither tier is required.
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What each tool does, what it assumes, and which plan it is in.
DriftBasic: 30 days
Regain is often gradual, and each week can look like the last one. A smoothed trend may make gradual change easier to notice than isolated weigh-ins.
Keep logging your weight, and look at where the trend sits over several weeks before changing anything.
Light touchLoopa Basic
A few quick logs are enough on most days. Widgets put the day’s numbers on your home screen or lock screen, so a glance can replace opening the app.
Widgets carry no paywall of their own. A widget for a Premium feature has nothing to draw until you have it.

Periodic reviewLoopa Premium
On Premium, the personal report reads back 7, 30 or 90 days or a custom range in the app, and 30, 60, 90, 180 or 365 days in a browser, with a written summary at the top.
The report can show data completeness alongside the selected trends: beside each target it shows the share of logged days that met it.

After medical weight managementLoopa Premium
After GLP-1 treatment or bariatric surgery, maintenance is planned with your prescriber or care team. This page does not give medication or surgery instructions.
Loopa can record the parts you track: weight and food in Basic, and GLP-1 or bariatric protocol tracking on Premium, with a clinician share report you can bring to appointments.
The Mifflin-St Jeor equation estimates resting energy expenditure from weight, height, age and sex. Maintenance calories built on it are an estimate for any one person.
Source: Mifflin MD et al., American Journal of Clinical Nutrition, 1990
In a study of everyday habit formation, the median time for a new behavior to become automatic was 66 days, with a range from 18 to 254 days. Routines settle at very different speeds for different people.
Source: Lally P et al., European Journal of Social Psychology, 2010
The weight trend is an exponentially weighted moving average. It makes a direction easier to see; it does not explain what caused it.
Basic reads a rolling 30-day window of your logs. Nothing is deleted, progress photos are not limited to 30 days, and your total change since you started is calculated from your full record.
The limits. A trend describes the direction of your readings. It cannot tell you whether a change was fat, and it is not a judgment about what weight is right for you.
Last reviewed: . This is the date the claims and sources on this page were checked, not a medical approval. Every source Loopa cites
Answered against the product as it works today.
There is no required schedule. The trend line needs at least three weigh-ins across seven days before it draws, and more frequent readings make it steadier. Some people weigh daily, others a few times a week.
No. Loopa works with whatever you log. Many people keep weighing in and log food only when the trend starts to drift or something changes. Nothing is locked or reset when you log less.
A week of higher readings is often water, glycogen or food in transit rather than fat. Keep logging your weight, and look at where the trend sits over the following weeks before changing anything.
It is an exponentially weighted moving average of your weigh-ins with a smoothing factor of 0.10, which gives each reading a half-life of about 6.6 days. It needs at least three weigh-ins across seven days, and it tells you what is missing instead of guessing.
Yes. Weight logging with a 30-day trend, food and macro logging, water, activity you log yourself, vitals, progress photos, widgets and reminders are all in Basic, with no ads.
Nothing is deleted. Basic reads a rolling 30-day window of your logs, and if you subscribe later the whole record is readable again. Progress photos are not limited to 30 days, and your total change since you started is calculated from your full record.
No. A scale reading and a trend cannot separate fat from water or lean tissue. Body measurements on Premium and progress photos in Basic add context, but none of them identifies what changed.
Update your weight, activity level or goal in settings and the target is recalculated, or type your own daily calorie target. Either way it is an estimate you adjust from the trend.
Follow the plan from your prescriber or bariatric team; this page does not give medication or surgery instructions. Loopa can record what you track: weight and food in Basic, and GLP-1 or bariatric protocol tracking on Premium, with a clinician share report for appointments.
Weigh in when it suits you, log food when you want context, and look at the longer trend every few weeks.