On Launch Llama
Mainplate - Watch collection and flip tracking dashboard
For watch enthusiasts and flippers: Mainplate tracks inventory, service history, and ROI across your collection—one dashboard for deals and profitability.
Built by Jacopo Caggiano
Productivity Paid
Visit website → Upvotes · 2
In category: #1474 of 1796 · ProductivityTrending this week: #218 of 1796 · Productivity
Mainplate is a Instant Launch listing on Launch Llama with 2 total upvotes across 2 founder supporters, founded by Jacopo Caggiano who joined in May 2026, compared against 6 alternatives.
Instant Launch listing
Listing status
2upvotes
Community score
Jacopo Caggiano (Joined May 2026)
Founder
Compared against 6 alternatives
Market comparison
About
Whether you flip vintage watches on weekends or maintain a carefully curated personal collection, managing your watches has never been this clean, this smart, or this satisfying. Mainplate is the all-in-one dashboard built for watch enthusiasts, hobbyist flippers, and professional watchmakers. Track every deal, log every service, know your real numbers — and never lose sight of what your time is actually worth. DASHBOARD — The Full Picture One screen. Total capital deployed. Realised profit. Average ROI across all flips. Open inventory value. Everything you need to understand your watch business at a glance. Sync precisely your wristwatch with the atomic clock. YOUR COLLECTION — Every Watch, Every Detail Your personal watches deserve more than a spreadsheet. Document each piece with photos, purchase price, a full service diary, and a running cost breakdown. When you sell, Mainplate calculates your gain or loss instantly. A dedicated Wishlist tab keeps your dream watches organized and ready to promote to your active collection at any time. FLIP TRACKING — Know Your Real ROI Every flip is a complete financial record. Log the purchase price, add expenses as you go, track your labor hours at your configured hourly rate, and let Mainplate crunch the numbers. The moment a flip is marked as Sold, you get net profit and ROI % — automatically, no math required. A four-stage workflow (Acquired → In Progress → For Sale → Sold) keeps your open pipeline and closed deals neatly separated, with color-coded status throughout the app. TIMEGRAPHER LOG — Precision at a Glance Record timing readings across all six standard positions (DU, DD, 3U, 6U, 9U, 12U), amplitude, and beat error. Mainplate computes the delta automatically and flags anomalies with color-coded diagnostic warnings — so you know exactly whether a movement needs attention before or after a service. INVENTORY & EQUIPMENT — Your Workshop, Counted Parts, oils, gaskets, tools — tracked with quantity and value per item. Log entries on a flip can auto-sync to your inventory, keeping stock accurate without extra effort. Your equipment gets its own dedicated section with a running total value. MORE FEATURES YOU'LL ACTUALLY USE • Photo gallery with drag-to-reorder and full lightbox viewer • Inline editing — update watches and flips directly in the list, no extra navigation • Light & dark mode • Multiple currencies, and custom category colors & icons Mainplate started as a free, open-source web app loved by the watch community. Now it's on your iPhone and iPad — the same powerful tools, the same clean design, ready to go wherever you go. Built for people who take their watches seriously. DISCLAIMER Mainplate is an independent app and is not affiliated with, endorsed by, or associated with any watch brand, manufacturer, or marketplace. All brand names, trademarks, and registered trademarks are the property of their respective owners and are referenced solely for informational and descriptive purposes. Any photos added by the user remain under their own responsibility — Mainplate does not host, claim ownership of, or redistribute user-uploaded content. By downloading Mainplate, you agree to Apple's Standard End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy https://jacopocaggiano.com/mainplate-privacy-policy/
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For agents
llms.txt · llms-full.txt · ai.txt · Live fact sheet · Full catalog (.md) · Endpoint index · API spec · REST access · Agent server · Server manifest · Server discovery
Pricing
Mainplate is a paid product. See the website for current pricing.
FAQ
What is Mainplate?
Whether you flip vintage watches on weekends or maintain a carefully curated personal collection, managing your watches has never been this clean, this smart, or this satisfying. Mainplate is the all-in-one dashboard built for watch enthusiasts, hobbyist flippers, and professional watchmakers. Track every deal, log every service, know your real numbers — and never lose sight of what your time is actually worth. DASHBOARD — The Full Picture One screen. Total capital deployed. Realised profit. Average ROI across all flips. Open inventory value. Everything you need to understand your watch business at a glance. Sync precisely your wristwatch with the atomic clock. YOUR COLLECTION — Every Watch, Every Detail Your personal watches deserve more than a spreadsheet. Document each piece with photos, purchase price, a full service diary, and a running cost breakdown. When you sell, Mainplate calculates your gain or loss instantly. A dedicated Wishlist tab keeps your dream watches organized and ready to promote to your active collection at any time. FLIP TRACKING — Know Your Real ROI Every flip is a complete financial record. Log the purchase price, add expenses as you go, track your labor hours at your configured hourly rate, and let Mainplate crunch the numbers. The moment a flip is marked as Sold, you get net profit and ROI % — automatically, no math required. A four-stage workflow (Acquired → In Progress → For Sale → Sold) keeps your open pipeline and closed deals neatly separated, with color-coded status throughout the app. TIMEGRAPHER LOG — Precision at a Glance Record timing readings across all six standard positions (DU, DD, 3U, 6U, 9U, 12U), amplitude, and beat error. Mainplate computes the delta automatically and flags anomalies with color-coded diagnostic warnings — so you know exactly whether a movement needs attention before or after a service. INVENTORY & EQUIPMENT — Your Workshop, Counted Parts, oils, gaskets, tools — tracked with quantity and value per item. Log entries on a flip can auto-sync to your inventory, keeping stock accurate without extra effort. Your equipment gets its own dedicated section with a running total value. MORE FEATURES YOU'LL ACTUALLY USE • Photo gallery with drag-to-reorder and full lightbox viewer • Inline editing — update watches and flips directly in the list, no extra navigation • Light & dark mode • Multiple currencies, and custom category colors & icons Mainplate started as a free, open-source web app loved by the watch community. Now it's on your iPhone and iPad — the same powerful tools, the same clean design, ready to go wherever you go. Built for people who take their watches seriously. DISCLAIMER Mainplate is an independent app and is not affiliated with, endorsed by, or associated with any watch brand, manufacturer, or marketplace. All brand names, trademarks, and registered trademarks are the property of their respective owners and are referenced solely for informational and descriptive purposes. Any photos added by the user remain under their own responsibility — Mainplate does not host, claim ownership of, or redistribute user-uploaded content. By downloading Mainplate, you agree to Apple's Standard End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy https://jacopocaggiano.com/mainplate-privacy-policy/
How much does Mainplate cost?
Mainplate is a paid product. See the website for current pricing. You can discover and review Mainplate for free on Launch Llama.
What category does Mainplate belong to?
Mainplate is listed under Finance, Productivity, Growth on Launch Llama.
How do I get started with Mainplate?
Click the "Visit Website" button on this page to go directly to Mainplate. You can also upvote and leave a review to help other founders discover it.
Supporters
2 founders2 founders contributed 2 upvotes to Mainplate on Launch Llama.
Reviews
3 comments
I was building this tool mainly for myself and started doing like a local web server with docker. After a few times this became bigger and bigger but found hard to distribute since it's already a niche. Ported and expanded everything on iOS so it can also be used on the bench or near your collection storing place.
Hi, thanks.
Hey, love seeing this here! 👋 What inspired you to build this? Would love to hear the story behind it.
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