IllustrationDay 12Too early to tellSee what your skincare actually does.
One guided photo a day. Saecra tells you honestly what changed.
Photos stay on your phone · Free to use
Free to use. Saecra Plus is $4.99 a month. See pricing
Saecra is in development. Features shown are planned and may change before launch.
How it measures: the same guided photo every day, counted on your phone with the same method each time. Not a score, not a guess.
How we measureFive kinds of light
Same face, five kinds of light.
We only show a number if it stays the same in all five. If we can't measure it the same way twice, we don't show it.
[1] Bathroom bulb
[2] Cloudy window
[3] Phone flash
[4] Evening lamp
[5] Late daylight
How it works
How it works
[1]
One guided photo a day
Aligned · Light OK · 5 frames About 30 seconds. The app guides your distance, angle and light, so every photo is taken the same way. Miss a day, nothing happens. Saecra never scores you.
[2]
Log what you changed
Your log
- RoutineStarted daily sunscreenDay 1
- TreatmentLight peelDay 4
- HabitUnder 6h sleep, 3 nightsDay 9
- HabitCycle day 21Day 14
- ProductNew vitamin C serumDay 22
A new product, a facial, more sleep. Two taps.
[3]
See what changed
Day 18
Day 604
Example: 8 blemishes on day 1, 4 on day 60. Saecra only shows a change when it's bigger than normal photo-to-photo variation.
No margin is published yet. We publish it when our repeat-photo test ends. Most changes take 8 to 12 weeks; until then it says too early to tell.
Five measurements are planned. Our goal is to launch with all five; each goes live as soon as it passes our repeat-photo test on every skin tone.
See how it worksYour log
Log anything you change.
New products, routines, peels, lasers, injectables, habits.
New products
With the ingredient and strength, if you know them
Routines
Morning, evening, weekly
Peels and lasers
Before and after, with the Treatment Referee
Injectables
Photos only, no number
Habits
Sleep, cycle day
Measured first: blemishes, now in testing. The other four appear as each passes on every shade.
First check
19 people, about two per shade: a small first check.
On Google and TONL's Monk Skin Tone Examples: 19 people from Monk 1 to 10, 602 front-facing photos. Reported by shade group, never as one average.
Finding the face
- Monk 1 to 3
- 100%
- Monk 4 to 6
- 100%
- Monk 7 to 10
- 99.5%
Face landmarks found, good and poor light.
Blemish false alarms
- Monk 1 to 3
- 0.7
- Monk 4 to 6
- 0.8
- Monk 7 to 10
- 0.9
Per face on clear skin, threshold 0.10.
Light check
- Monk 1 to 3, 4 to 6 and 7 to 10
- 96 to 100%
Of well-lit faces pass, in every shade group.
Dark circles is paused: it was less reliable on deeper skin in poor light. It comes back only when it passes on every shade.
See every result and what's nextTreatment Referee
Started a laser, peel or new routine? Saecra keeps the before and after.
Real before and afters will come from beta testers who choose to share them. Until then, photos marked Illustration are made with AI.
See the Treatment Referee
Before
Week 2
Week 6
Week 12
Our rule
Free to use. Private by design. One rule for every skin tone.
$0
Free
Free to use.
Saecra Plus is $4.99 a month or $39.99 a year, and it is the only way we make money.
Every measurement is free once it's live. My routine is free. Plus adds the dermatologist summary, the Treatment Referee, more tracked changes and the routine audit.
None
Copies on our servers
Your photos stay yours.
Analyzed on your phone and kept there. Export everything, any time, for free.
Ten shades, one rule.
Our goal is to launch with all five measurements. Each one goes live as soon as it passes our repeat-photo test on every skin tone. All five are in testing today, with no number yet.
Photos marked Illustration are made with AI. They are not real people or real results.
Find out what's actually working.
No marketing emails. Just two: your beta invite and the day we launch. Waitlist members get their first 3 months of Saecra Plus free.
If Saecra ever closes, the app keeps working on your phone and you can export everything.
See what your skincare actually does.
One guided photo a day, measured on your phone. Log what you use, and Saecra tells you honestly what changed.
Free to use. Saecra Plus is $4.99 a month. See pricing
Photos stay on your phone
How it measures: the same guided photo every day, counted on your phone with the same method each time. Not a score, not a guess.
Five kinds of light
Same face, five kinds of light.
We only show a number if it stays the same in all five. If we can't measure it the same way twice, we don't show it.
[1] Bathroom bulb
[2] Cloudy window
[3] Phone flash
[4] Evening lamp
[5] Late daylight
How it works
How it works
Aligned · Light OK · 5 frames [1]
One guided photo a day
About 30 seconds. The app guides your distance, angle and light, so every photo is taken the same way. Miss a day, nothing happens. Saecra never scores you.
Your log
- RoutineStarted daily sunscreenDay 1
- TreatmentLight peelDay 4
- HabitUnder 6h sleep, 3 nightsDay 9
- HabitCycle day 21Day 14
- ProductNew vitamin C serumDay 22
[2]
Log what you changed
A new product, a facial, more sleep. Two taps.
Day 18
Day 604
Example: 8 blemishes on day 1, 4 on day 60. [3]
See what changed
Saecra only shows a change when it's bigger than normal photo-to-photo variation.
No margin is published yet. We publish it when our repeat-photo test ends. Most changes take 8 to 12 weeks; until then it says too early to tell.
Five measurements are planned. Our goal is to launch with all five; each goes live as soon as it passes our repeat-photo test on every skin tone.
See how it worksYour log
Log anything you change.
New products, routines, peels, lasers, injectables, habits.
New products
With the ingredient and strength, if you know them
Routines
Morning, evening, weekly
Peels and lasers
Before and after, with the Treatment Referee
Injectables
Photos only, no number
Habits
Sleep, cycle day
Measured first: blemishes, now in testing. The other four appear as each passes on every shade.
First check
19 people, about two per shade: a small first check.
On Google and TONL's Monk Skin Tone Examples: 19 people from Monk 1 to 10, 602 front-facing photos. Reported by shade group, never as one average.
Finding the face
- Monk 1 to 3
- 100%
- Monk 4 to 6
- 100%
- Monk 7 to 10
- 99.5%
Face landmarks found, good and poor light.
Blemish false alarms
- Monk 1 to 3
- 0.7
- Monk 4 to 6
- 0.8
- Monk 7 to 10
- 0.9
Per face on clear skin, threshold 0.10.
Light check
96 to 100%
Monk 1 to 3, 4 to 6 and 7 to 10
Of well-lit faces pass, in every shade group.
Dark circles is paused: it was less reliable on deeper skin in poor light. It comes back only when it passes on every shade.
Treatment Referee
Started a laser, peel or new routine? Saecra keeps the before and after.
Real before and afters will come from beta testers who choose to share them. Until then, photos marked Illustration are made with AI.
See the Treatment RefereeBefore
Week 2
Week 6
Week 12
Our rule
Free to use. Private by design. One rule for every skin tone.
$0
Free
Free to use.
Saecra Plus is $4.99 a month or $39.99 a year, and it is the only way we make money.
Every measurement is free once it's live. My routine is free. Plus adds the dermatologist summary, the Treatment Referee, more tracked changes and the routine audit.
None
Copies on our servers
Your photos stay yours.
Analyzed on your phone and kept there. Export everything, any time, for free.
Ten shades, one rule.
Our goal is to launch with all five measurements. Each one goes live as soon as it passes our repeat-photo test on every skin tone. All five are in testing today, with no number yet.
Photos marked Illustration are made with AI. They are not real people or real results.
Find out what's actually working.
No marketing emails. Just two: your beta invite and the day we launch. Waitlist members get their first 3 months of Saecra Plus free.
If Saecra ever closes, the app keeps working on your phone and you can export everything.