Blind timing
Six vague days, when 36 hours decide it
Strip tests call six days fertile. Most sit under a 10% chance, and the lines are faint enough that she runs three brands at once and still is not sure.
Confidential · July 2026 · Do not distribute
The device Solves · Blind timing
Six days of guessing, or the 36 hours that decide it.
| Ovulation strips | Mira · Inito | Soonr | |
|---|---|---|---|
| Reads | LH, judged by eye | Multi-hormone | LH + PdG, read by the device |
| Minutes per test | 5, plus faint lines | 10 to 15 | 5 |
| Starter price | ~$20, no reader | $149 to $199 | $119 |
| What you get | Maybe ovulating | A 6-day window | The 36 hours, then proof it happened |
We build it
Made on our investor's own line
KOSDAQ-listed, ten years into immunoassay R&D, and our strategic investor. Mira and Inito buy their hardware.
We research it
Sugentech Bio Femtech Center
A femtech R&D center inside the manufacturer, building the assays our roadmap needs.
We file it ourselves
In-house regulatory affairs
FDA is where most femtech stalls. Ours is a standing regulatory team, not a consultant: registered since 2023, EU IVDR certified, 99%+ LH accuracy.
Optical reading method granted in Korea (10-1678691). Pregnancy prediction pending in Korea and the U.S. (19/539,683). Screen designs and the vespexx and soonr marks registered.
The software Solves · Marriage strain
Knowing when is not the same as being ready.
Competitors stop at the window. Sperm takes 74 days to mature and egg quality is shaped over about 90, so the plan runs 90 days and splits across both partners.
Helen Sohn, MDCo-CEO. Former NIH researcher, VP of the Korea IVD Industry Association
Prof. JuHye Lee, MDReproductive endocrinology. Reviews every coaching protocol
Protocols built with CHA Medical and Ewha Mokdong. Syncs with Apple, Samsung and Google Health.
The part no competitor has
Nobody has to say "tonight" out loud
She shares the result, not the ask. He opens his own tasks and sees the same chart. The conversation that turns intimacy into homework never has to happen.
Protocols written with clinicians, not a growth team
Co-developed with
Soonr × Mayo Clinic Solves · Slow and expensive
A regular cycle can still hide a disorder. We are building the early warning.
10 to 37%
of women with regular cycles still do not ovulate in a given month
12months
is how long they wait before anyone looks
Less time guessing at home. Faster to a clinic on the months that actually warrant one.
What the model looks for
| Anovulation | No LH surge, no PdG rise |
|---|---|
| Luteal phase defect | Short luteal phase, low PdG |
| PCOS pattern | Elevated baseline LH, anovulatory profile |
01 · Input
Daily LH and PdG
From the Soonr device, cycle after cycle.
02 · Model
Time-series pattern recognition
Longitudinal hormone data, not a single reading.
03 · Output
Risk signal and triage
Validated against Mayo Clinic clinical labels.
Traction Proven in Korea, relocalized for the U.S.
800,000 couples already run their cycle on us.
800K+
cumulative users · 240K MAU
55% organic growth
61%
Week-1 retention
~50× the category average
#1
user growth among biotech companies. Amplitude Pioneer Award.
Outstanding Data-Driven Growth
$583K
cumulative revenue to date, before the U.S. launch matured
Accrual basis · 2026 ARR target $3M
The same engine, a different job
Korea: couples' contraception. U.S.: couples' conception.
We won Korea by solving the hard half, getting two people to open one health app daily. The U.S. build keeps that engine and points it at conception.
Why the data compounds
Nobody else holds this dataset
Cycle apps hold self-reported dates. We hold hormone data from 800K users, paired with daily inputs from both partners, and through Mayo Clinic, clinical labels on top.
Partners
Team 11 people · 7 building, 4 commercial
The Best Team Backed by 10-Year R&D Legacy
Co-CEO · Business
Scarlett Jung
A first-generation Korean femtech founder and a key opinion leader in the category. Built Dalchaebi, a menstrual-health AI app, then did femtech deals at YellowDog VC.
Co-CEO · IVD
Helen Sohn, MD
Former NIH researcher. VP of the Korea IVD Industry Association since 2019. Previously LG Chem and KRIBB.
Healthtech lead
S.H. Eom
CTO at ModoriC Healthcare. Built Trumpia, a U.S. mass-volume messaging service. 14 years in data infrastructure.
Product & AI
Ethan C. Lee
CTO of an AI healthcare startup. Data sensing platform, IoT business division at LG CNS.
Global GTM
Amy Kim
Overseas business at Nexon. Partnerships at Kakao Games and Blizzard Entertainment. Runs U.S. brand and channels.
Peggy Daglian, LMFT
U.S. fertility counseling · ASRM
Sarah Saxty
U.S. consumer brand strategy
Prof. JuHye Lee, MD
Reproductive endocrinology
Dr. Gwidong Han
Reproductive genomics, KAIST
Hiring next: U.S. commercial lead, regulatory counsel, clinical partnerships.
soonr.Vespexx Inc. · San Francisco & Seoul