Features
Sayved can add an estimated daily baseline burn to the exercise you log, so a day where you ate nothing shows what your body still spent. It is opt-in, always an estimate with a range, never a target, and the net figure is shown without any colour or comment.
If a calorie log only counts what you enter, a day with nothing logged shows zero burned. That is not a gap in the record, it is a wrong number in it. A living body spends energy whether or not you opened an app. The days this misleads most are the ones worth reading: a day you chose not to eat, where the real story is how much was spent.
Sayved’s energy baseline fixes this without pretending to know more than it does. It adds a calculated daily figure to the burned side, labelled as calculated, so a fasting day reads as a day with nothing eaten and the baseline spent, rather than “nothing happened”.
You set it up once in Settings under Energy baseline. You enter height, weight and age, choose a sex, and pick the description that matches your day without exercise. The four choices are desk job and mostly sitting, on my feet some of the day, on my feet most of the day, and physically demanding job.
From those, Sayved suggests a daily figure using the Mifflin-St Jeor equation, shows a range around it, and invites you to keep it or type your own. If you have a measured figure from a clinic, enter that and it is recorded as stated rather than estimated. The calculator suggests and you confirm, and the difference between the formula and your number is kept as your own correction, even when your weight later changes.
A toggle, Count the baseline, decides whether the figure joins your totals. It is off by default and never prompted for. The first time you switch it on, it counts from that day. It is never applied to past days you did not opt into.
BMR is the energy a body uses at rest. Many trackers multiply it by an activity factor labelled with exercise, such as “moderately active, exercise 3-5 days a week”. That factor already contains your workouts, so adding a logged run on top counts it twice. A 500 kcal run double-counted on an 1,800 kcal base overstates the day by more than a quarter.
Sayved avoids this by keeping the two apart. Its activity choices describe only what your job and daily life do, and they are deliberately lower than the familiar ladder. The app says it directly: anything you log as exercise is added on top, so counting it in the baseline would count it twice. The word “baseline” is also on purpose. It means the floor your day starts from, with no fitness-forum vocabulary needed.
For children and teenagers, the adult formula materially underestimates. Under 18, Sayved uses the WHO/FAO Schofield equations, banded by age, and says so on the screen. Every saved set of measurements is kept as a dated row and never rewritten, so a growing child’s list of saved measurements doubles as a growth record.
The baseline appears in four places, each labelled as calculated:
The Net line carries its own caution: both sides are estimates, so it is the loosest figure on the screen. See health charts and reports for the rest of the Reports screen.
Yes, and it is the case the feature was designed for. On a day you fast on purpose you log nothing, and the baseline and any exercise you do log still show as spending. If you do eat, the food side fills in as usual. Nothing in the app labels a fasting day as good or bad. The fasting log page shows how this fits a fasting routine.
If you prefer to treat a day as out of scope, such as a day of illness, Not today removes the baseline from that one day.
The rules are fixed, and they matter more than any feature:
Questions about how much energy you need belong with a doctor or dietitian. Sayved is the record you bring to that conversation. The food side of the picture is in the food diary, and the exercise side in the workout log.
“A fasting day. Ate nothing, then a 40 minute walk”
Illustrative numbers. The net has no colour and no comment.
Once you switch it on, yes, from that day onwards. It is calculated when a day is shown rather than saved as an entry, so it never makes an empty day look like a logged one. You can exclude any single day with Not today.
No. The activity choices describe your day without exercise, and anything you log as exercise is added on top. The levels are deliberately lower than the ladders in most calculators, because those already include training.
Yes, with a different formula. For ages under 18 Sayved uses the WHO/FAO Schofield equations instead of the adult formula, and the screen tells you when it does. Each family member has their own baseline.
Choose Prefer not to say. The formula then uses the midpoint of the two values, which costs roughly 80 kcal of precision.
No. A deficit is not green and a surplus is not red. Sayved reports the number and stops, and it never sends a notification about it.
Sayved turns what you log into food, sleep, mood and symptom charts for a week to all time. Averages use logged days only, with no grades or red days.
Log protein, carbs and fat by photo, voice or nutrition label. Sayved estimates each with a range and shows your split. Every number is editable.
A food diary app where you snap a plate or say what you ate. Sayved saves the meal with a calorie and macro range, and you can edit any number.
A workout log app you talk to. Say what you did, including sets, reps and added weight, and Sayved writes it down. Ask about your training later.
A family health tracker app with a separate private log for each child, parent and partner on one phone. One subscription covers the household.
Free for 14 days, then $2.99 a month. Everything you've logged stays yours, readable and free, forever.
Sayved