D

iOS, Android product

Added October 20, 2026

Dayhack: Biohacking Journal

Visit Dayhack↗

About the product

Biohacking journal: a food diary without calories, a sleep journal and a workout log in one app. Write down what you eat, how you trained, how you slept and the urges you held, then see what you actually did this week. Free with an optional Plus.
0 recommendations

Recommendations are a community signal, not a verified count.

Share Dayhack with your network.

Community notes

Feedback & updates

Start the conversation
No notes yet

Have experience with Dayhack, or something new to share? Add the first useful note.

For product owners

Promote Dayhack

Every listing gets one post to our X and Threads followers. It is seen once, then the traffic stops. Promotion keeps Dayhack in front of people instead.

  • Back in the X and Threads rotation: Dayhack gets posted again instead of once.
  • A promoted slot on the AppRater homepage, carrying a Promoted badge.
  • A direct link to Dayhack from a DR45 site (Ahrefs Domain Rating), with no redirect in between.
  • A labelled spot in the weekly email to AppRater subscribers, one promoted app per issue.
  • Stays on the first screen however old the listing is, while new submissions push everything else down.

Monthly promotion

$14USD per month

Card, Apple Pay and more, through Whop. Starts straight away.

  • Cancel any time from the Whop account you paid with, or email [email protected] and we will do it.
  • The promotion starts straight away, no waiting on us.
  • Whop handles the checkout. We never see your card.

Questions first? Email [email protected].

For ownersOwn Dayhack? You can add a deal, post a role or put the badge on your own site.