aid: big-sky-health
name: Big Sky Health
description: 'Big Sky Health (now operating as Zero Longevity Science, Inc.) is a Bozeman,
  Montana consumer digital-health company best known for Zero, one of the most popular
  intermittent-fasting and nutrition-tracking mobile apps. Zero combines a fasting timer,
  photo-based meal and protein logging, a personalized Protein Score, and water-intake
  tracking to help users manage body composition and adopt science-backed longevity
  practices. The company runs as a direct-to-consumer mobile subscription business
  (Zero Plus) on iOS and Android. As of this profile it publishes no public developer
  API, SDK, MCP server, or developer program. It was added to the API Evangelist network
  as a Trinity Ventures portfolio company awaiting enrichment.'
url: https://raw.githubusercontent.com/api-evangelist/big-sky-health/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://zerolongevity.com/framer-assets/images/LahjgauHESHlfOouYREz3bAGkME.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- trinity-ventures
x-tier: stub
x-tier-reason: portfolio-lead
x-also-known-as: Zero Longevity Science, Inc.
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Healthcare
- Digital Health
- Fasting
- Nutrition
- Longevity
- Consumer App
- Mobile
apis: []
common:
- type: DomainSecurity
  url: security/big-sky-health-domain-security.yml
- type: Website
  url: https://zerolongevity.com
- type: Blog
  url: https://zerolongevity.com/blog/
- type: Support
  url: https://zerofasting.zendesk.com/hc/en-us
- type: PrivacyPolicy
  url: https://zerolongevity.com/privacy-policy
- type: TermsOfService
  url: https://zerolongevity.com/terms-of-use
- type: Pricing
  url: https://zerolongevity.com/plus
- type: SignUp
  url: https://apps.apple.com/us/app/zero-fasting-food-tracker/id1168348542
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence