Now on web + iOS
Track every part, plan your projects, and capture the evolving history of your cars in a place built just for project cars.
Free for one car. No credit card required.
Android app coming soon
Less searching. More doing.
The more you keep together, the more useful your project’s history becomes.
Made for project cars
Go beyond logging completed work. Plan even the most complex projects, save your parts, and every last detail that matters.
Keep research, checklists, parts, and notes in one project plan. Work through the details of a restoration, engine swap, or a job that’s still evolving.
Track parts to buy, parts on the shelf, and parts installed—with numbers, costs, receipts, and the project they belong to.
Keep CAD files, PDF wiring diagrams, owner’s manuals, spreadsheets, and photos with your car and its projects. Preview supported CAD models without digging through folders.
Connect with project-minded enthusiasts. Share progress, trade ideas, and learn from each other in a community focused on the work, with no ads.
As featured on
App Store reviews
This is literally what we have been needing for our projects. Godsend.
The app is very well made, and clearly designed with love. It's very effective at helping you keep track of projects (especially useful if you have a lot of projects) and has a wide variety of features. I'd recommend this app for any car enthusiasts out there.
If you find yourself reminiscing of the days when forums existed. Or looking for a way to catalog and organize your project car journey. Then this is the app for you. Track the progress of your projects, what you need to do, what you need to get, all while keeping a history of what you’ve done. See what other like minded car enthusiasts are doing on their projects without all of the unwanted noise and nonsense of social media.
Choose your membership
Try it with your first project car
$0USD
No credit card required.
Track all of your cars
$4.99USD / month
Billed monthly.
Exclusively for Early Adopters of Assembly
$9.99USD / month
Billed monthly.
Prices shown in USD apply to web and the US App Store. Annual plans are charged once per year. Start with Free—no credit card required. View the App Store listing.
Start with what’s next
Get the projects out of your head. Add the details as you work.
Give your project car a home.
List everything you’re working on or planning. Just the project names are enough to start.
As you work, add notes, to-dos, and parts to that project. Let the details grow naturally.
One car · 100 MB · No credit card required
Feature roadmap
Ready to use today
Access Assembly anywhere from a web browser, with room to plan and manage your projects on a bigger screen. Included in every plan.
Try it on web ↗Keep all your CAD files with your projects in Assembly, including STEP/STP, IGES/IGS, STL, OBJ, BREP, DXF, and DWG. Explore supported models with interactive previews, right where you plan the work.
On our roadmap
A native Android app for your time in the garage.
Get launch news →Record maintenance work and service details for your project car.
Stay on top of upcoming service and recurring seasonal tasks.
Tell us what would help you with your projects.
Join our email list
Product notes and Android launch news.
Assembly is made for project cars, where you’re not just logging maintenance and replacing parts, but sometimes taking on projects without a clearly laid path forward.
Previously, this often meant using a generic Notes app, but that leaves you with a mess of fractured information.
Assembly pairs the ease and flexibility of typing in a notes app with clear, intuitive organization that fits how we think about projects.
As you save more information in Assembly, it becomes not just a planning aid, but a rich history of all the time and persistence you’ve invested in your car.
Assembly’s Community is built around the idea of bringing together project-focused enthusiasts who don’t see themselves reflected in stereotypical car culture. People who aren’t looking to show off or get attention, but instead are drawn to cars because of an appreciation for cars as mechanical objects and a curiosity to learn and grow different skillsets.
Assembly’s Community is for enthusiasts who take their projects seriously, and prefer the depth of discussion from forums over the endless scroll of social media car culture. We value thoughtfully written stories over beautiful images, and quality over quantity.
Assembly’s Community is exclusively for paid Members.
Yes. You can export your data at any time.
Yes. The Free plan includes one car and 100 MB of storage on web and iOS. No credit card required. Compare all plans.
Add your car, list the projects you’re working on or planning, then add notes, to-dos, and parts as you work on the first project.
Assembly has a native iOS app for iPhone and iPad, available in the App Store, and a web version for your browser. Our Android app for Google Play is in progress and coming soon. Get launch updates.
