Your fasting app companion

Meridian is a fasting timer and fasting app companion built on research, not trends. Your health isn't a game. No badges. No streaks. No confetti. Just a beautiful tool and the science behind it.

Meridian fasting timer showing active fast with metabolic phase tracking

What we left out

No gamification. No badges, streaks, or confetti.
No calorie counting. No meal plans. No food logging.
No AI coach. No chatbot telling you you're "amazing."
No social feed. Fasting is personal.
No feature bloat. One thing, done well.

What stayed

7 protocols

From 14:10 to 36-hour extended fasting. Each with its evidence base and appropriate caveats.

Metabolic phases

Real-time tracking of what's happening in your body. Every phase timing links to published research.

Science library

Peer-reviewed research summaries you can actually trust. Not blog posts. Not influencer opinions.

Journal

A personal note for each fast. No prompts, no suggestions. Just space to write anything.

Apple Health

Read-only integration. We look at your data but never write to it. Your health record stays yours.

Dark mode. Obviously.

Warm charcoal, not pure black. Equally considered. Not an afterthought.

Every claim has a source.

Not blog posts. Not influencer opinions. Peer-reviewed studies you can read yourself. Tap any metabolic phase to see the research behind it — randomized controlled trials, systematic reviews, and meta-analyses with appropriate caveats where evidence is limited.

Meridian science library showing peer-reviewed research with citation counts

Honest pricing.

No dark patterns. No "limited time offers." No surprise charges.

Monthly

$1.99

/month

Yearly

$14.99

/year

Lifetime

$39.99

once

Free tier includes timer with 16:8 protocol.