Companion
Peri
A perinatal AI companion — listens, and escalates when it matters.
- Trained on perinatal best practices
- 3am-ready, gentle, non-clinical
- Knows when to hand off to a human
Open Peri
Tether for Business
Perinatal support, embedded in your care setting.
Perinatal outcomes don't improve in isolation. They improve when behavioral support is treated as inseparable from physical health — embedded in the same care environment, supported by the same team, and tracked with the same rigor.
1 in 5
birthing individuals develop a perinatal mood or anxiety disorder — the most common complication of pregnancy and postpartum.
1 in 10
non-birthing partners and co-parents develop perinatal mood or anxiety disorders — rarely screened, rarely treated.
Source: Paulson & Bazemore, JAMA, 2010 (meta-analysis of 43 studies).
~50%
of cases of perinatal depression go undetected in standard obstetric and primary care settings.
$14.2B
estimated annual U.S. societal cost of untreated maternal mental health conditions.
~2×
the mental / cognitive household load carried by birthing parents vs. their partners — invisible labor that predicts burnout and PMAD onset.
1 in 4
postpartum parents report having no one to turn to for practical, day-to-day support — a top independent predictor of PMAD risk.
Source: Hetherington et al., Maternal & Child Health Journal, 2018; Surkan et al., 2006.
The Tether Model
A support layer, not an add-on.
Tether for Business is a specialist-informed perinatal support platform that combines structured protocols with a suite of digital tools — Peri, Pulse, and Loop-In — into a single integrated support layer organizations can adopt without rebuilding what they've already built.
Informed by specialists.
Every protocol, escalation pathway, and screener is developed and continuously informed by perinatal specialists, psychologists, PMHNPs, psychiatrists, and researchers — not general wellness best practices retrofitted for the perinatal period.
Designed for every care setting.
From independent birthing centers and family medicine groups to OB/GYN clinics, midwifery groups, and large hospital systems — Tether is architected to integrate at the scale and complexity of your organization.
Embedded, not referred out.
Tether functions as an embedded support layer — surfacing risk earlier, coordinating support across the patient's circle, and creating a documented longitudinal record that follows the patient through pregnancy and postpartum.
Operationally defensible.
Documented escalation pathways reduce risk and extend the capacity of existing care teams. Outcomes are measured and reported — not assumed.
The tetherApp suite
Three tools. One shared intelligence.
Loop-In, Pulse, and Peri each solve a distinct piece of the perinatal experience — and pass signal to one another so support arrives before you have to ask for it.
Shared intelligence
How Loop-In, Pulse, and Peri talk to each other.
PulsePeri
A dip in mood or sleep triggers Peri to check in with the right question — not a generic prompt.
PeriLoop-In
When Peri hears that the load is too heavy, it offers to draft a Loop-In nudge so the circle can claim real help.
Loop-InPulse
As support actually shows up, Pulse closes the loop — measuring whether mood and energy move in response.
The Tether Protocol™
A proprietary five-stage support framework.
A repeatable pathway that spans preconception through 24 months postpartum — designed by Tether founder Ash Choi and continuously refined with input from a specialist advisory network.
Stage 1
Identify
Validated screeners (EPDS, GAD-7, PHQ-9) administered longitudinally — not once at six weeks postpartum.
Stage 2
Stratify
Risk-tiered routing surfaces patients to the appropriate level of care before symptoms escalate.
Stage 3
Embed
Patient-facing tools (Peri, Pulse, Loop-In) live between visits, capturing signal that office-only models miss.
Stage 4
Coordinate
Care network coordination across partners, family, and providers — documented and shareable.
Stage 5
Report
Outcomes data and clinical documentation flow back to the care team and, where contracted, to the payer.
Outcomes
What organizations can expect.
Earlier identification of PMADs
Longitudinal tracking + validated screeners surface perinatal mood and anxiety disorders months before standard screening cadences would.
Reduced care fragmentation
Coordinated behavioral health touchpoints across the patient journey — preconception through 24 months postpartum.
Defensible escalation pathways
Documented clinical escalation pathways reduce liability and extend the capacity of existing care teams.
Higher between-visit engagement
Accessible, low-friction digital support patients actually use — without adding to your team's inbox.
Replicable implementation
An implementation model that adapts to your EMR, workflows, and patient population — not the reverse.
Equity-forward by design
Built to serve birthing and non-birthing parents, single parents, and queer families — populations historically underserved by perinatal care.
The landscape
What other platforms don't do.
Maternal and women's health is crowded with tracking apps, community spaces, and virtual-first clinics. Few are specialist-informed, fewer still are purpose-built for the perinatal arc, and almost none coordinate the patient's support network as part of the care plan.
| Capability | Tether | Maven Clinic | Ovia | Babyscripts | Pomelo | Cleo | Tara | Peanut | Ouma Health |
|---|---|---|---|---|---|---|---|---|---|
| Clinician-led, perinatal-specialist designed | partial | partial | |||||||
| Clinician-led product & protocols | partial | partial | partial | ||||||
| Longitudinal validated mental health screening | partial | partial | partial | ||||||
| Documented clinical escalation pathways | partial | partial | partial | ||||||
| Support network / circle coordination | partial | ||||||||
| Embedded AI companion (perinatal-trained) | |||||||||
| Includes non-birthing partners | partial | partial | |||||||
| White-label for health systems | partial |
Based on publicly available product documentation as of 2026. The matrix above shows the seven most directly comparable platforms — those with the largest market footprint, the most overlap with Tether's scope (perinatal mental health, care coordination, or embedded health-system delivery), or the most frequent mention in payer and provider evaluations. The full set of platforms reviewed during this analysis also included What to Expect, Nurtur, Midi Health, Hello Mavie, Withflower Health, Kinhub, and Villyge, which were excluded from the visible matrix either because their scope is materially narrower (community-only, menopause-focused, or single-feature), because they overlap closely with a platform already shown, or because public product documentation was insufficient to score them with confidence.
Signal
Field evidence, in their words.
Early signal from patients in active care and from organizations evaluating Tether for implementation.
"By week three postpartum I knew I was sliding. Pulse is what made it visible enough to do something about — before it became a crisis."
Tether patient, Seattle, WA
Postpartum, 4 months
"We've been looking for a perinatal behavioral health partner that wasn't just a referral destination. Tether is the first model we've seen that actually embeds."
Director of Women's Health
Midwifery group, evaluating implementation
"Loop-In gave my mom and my best friend something specific to do. Three weeks in, I stopped feeling like I was drowning alone."
Tether patient, Washington State
First-time parent, partner referred
Implementation
Three ways to integrate.
Group-level
tetherApp embedded as a patient-facing digital adjunct, with referral pathways to perinatal-specialist providers in your region.
Fit: Independent groups, OB/GYN clinics, midwifery groups, birthing centers.
System-level
Full Tether integration: white-labeled digital tools, clinical protocol licensing, staff training, outcomes reporting, and EMR-aligned implementation.
Fit: Hospital systems, integrated delivery networks, multi-site provider groups, payers.
Research partnerships
Co-investigation opportunities for health systems and academic medical centers measuring perinatal behavioral health outcomes at scale.
Fit: AMCs, public health departments, perinatal collaboratives.
The case
"Treating mental health as a lower priority than physical health isn't just a values problem — it's a clinical and financial one. Tether changes that calculus."
Start the conversation.
Tether Perinatal is currently accepting implementation inquiries from care organizations, health systems, and payers.
Schedule a conversation