DynoLog

Your Build. Your Numbers.

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Track every mod, run, and dollar in your build. Log dyno numbers, document the journey, and share your ride with a community that gets it. Your garage, in your pocket. DynoLog is the build journal for people who actually wrench. Whether you're chasing a quarter-mile time, documenting a full restomod, or just keeping honest track of where the money's going, DynoLog gives your build a home. No spreadsheets. No scattered photos. No forgetting what you paid for that turbo eight months ago. TRACK YOUR BUILD Log every modification with cost, vendor, install date, and notes. Watch your total investment add up (whether you want to see that number or not). Keep receipt photos attached to each mod so nothing gets lost. LOG YOUR RUNS Record performance runs — ET, trap speed, horsepower — and see them plotted over time. Correlate mods to gains: see exactly which changes moved the needle and by how much. DOCUMENT THE JOURNEY Your build's full timeline in one place. Every mod, every run, every milestone, in order. Look back at where the car started and how far it's come. SHARE YOUR RIDE Publish your build to a clean public page you can share anywhere. Browse the community feed, follow other builders, like and comment on builds that inspire you. Real builds from real enthusiasts. WORKS WITH HOWFAST Already running HowFast? Send your performance runs straight to DynoLog — by direct link, file export, or background cloud sync — and keep all your data in one build journal. FREE TO START Track two vehicles, log mods, and record runs for free. Upgrade to DynoLog Unlimited — a single $6.99 purchase, yours forever, no subscription — for unlimited vehicles, the receipt photo vault, PDF build sheet export, and the full timeline view. Built by enthusiasts, for enthusiasts. Your garage, in your pocket.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

Ability to update vehicle status/details.

Version 1.01

The developer, DtimesTwo Technologies LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Contact Info
    • User Content
    • Identifiers
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • DtimesTwo Technologies LLC
Size
  • 46 MB
Category
  • Sports
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPad
    Requires iPadOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
Languages
  • English
Age Rating
13+
  • 13+
  • Learn More
  • Infrequent
    Profanity or Crude Humor

    Contains
    Messaging and Chat
    User-Generated Content
In-App Purchases
Yes
Copyright
  • © 2026 DtimesTwo Technologies, LLC
  • Developer Website
  • Privacy Policy

    • More by DtimesTwo Technologies LLC