SMS Accessibility¶
GiveCare delivers its entire experience over SMS. Not a mobile app. Not a web portal. SMS. This is a deliberate design decision grounded in who caregivers are and when they need help most.
Why SMS, not an app¶
No download friction at highest-stress moments¶
The moment a caregiver most needs support is the moment they are least able to navigate an app store, create an account, set permissions, and learn a new interface. App installation is a cold-start problem that compounds at exactly the wrong time.
SMS has zero cold-start friction. Every phone already has it. Every caregiver already knows how to use it.
Works on any phone¶
Not every caregiver has a smartphone. 1 in 5 caregivers live in rural areas1. The average caregiver age is 51. Older caregivers, rural caregivers, and lower-income caregivers are more likely to rely on basic phones. SMS works on every phone manufactured in the last 25 years.
Always-on, no battery or storage concerns¶
Apps consume storage, require updates, and drain battery. A caregiver managing medical tasks, financial paperwork, and a household does not need another app competing for phone resources. SMS messages arrive regardless of available storage, app update status, or background process management.
Meets caregivers where they already are¶
Caregivers already use SMS — for coordinating with family, communicating with healthcare providers, managing appointments. GiveCare's channel is not a new behavior. It is a familiar one, extended.
Asynchronous by nature¶
SMS is inherently asynchronous. A caregiver can receive a check-in from Mira at 9 AM and respond at 2 PM when they have a moment. There is no "session" to time out, no app to reopen, no context to rebuild. The conversation persists.
Precedent: Crisis Text Line¶
Crisis Text Line (741741) established the precedent that SMS is a viable — and preferred — channel for sensitive support conversations. Their findings:
- Text-based crisis intervention reaches populations that will not call a phone hotline
- The asynchronous nature of texting reduces anxiety compared to real-time voice calls
- Text provides a written record that both parties can reference
- SMS reaches people in situations where a phone call is not safe or possible (e.g., controlling relationships)
GiveCare extends this precedent from crisis intervention to proactive caregiver support. The same properties that make SMS effective for crisis (low friction, any phone, asynchronous, private) make it effective for ongoing caregiving support.
TCPA considerations¶
The Telephone Consumer Protection Act (TCPA) regulates automated text messaging. GiveCare operates within this framework:
- Consent: Explicit opt-in at SMS signup, with clear disclosure of message frequency and content
- Opt-out: Standard STOP keyword processing, immediate and complete
- Emergency exemption: FCC Order DA 20-402 (47 C.F.R. 64.1200(a)) provides TCPA exemption for emergency communications. Crisis routing messages — specifically safety tier responses — fall under this exemption, which is why the crisis gate precedes the consent gate in GiveCare's message flow
See SMS Journey for the technical implementation of consent and crisis gate ordering.
What SMS cannot do¶
Honest assessment of SMS limitations:
| Limitation | Mitigation |
|---|---|
| No rich media (images, charts, interactive forms) | Score visualization via linked web page (score.givecareapp.com) |
| 160-character segment limits (longer messages split) | Mira's voice is designed for brevity — 1-2 sentences, under 280 characters |
| No push notifications with rich previews | SMS itself IS the notification — no intermediary |
| No offline drafts or saved state on device | Conversation history lives server-side; caregiver can always text back |
| Higher per-message cost than internet messaging | Cost is marginal vs. the value of reaching caregivers who would not install an app |
The limitations are real but acceptable. The alternative — building an app that 40% of the target population cannot or will not install — is worse.
Design implications¶
SMS as primary channel drives several product decisions:
- Mira's voice is designed for SMS: brief, concrete, one idea per message, one question at a time
- Assessments are administered conversationally over SMS, not as form UIs
- Benefits discovery presents one program at a time with a clear next step, not a list
- Crisis routing uses SMS-native patterns (hotline numbers in plain text, not tappable links)