BuildSheet vs Modfest
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BuildSheet
Log expenses, track modifications, and document your project car's progress from start to finish. Visualize your spending, set maintenance reminders, and share your build with a community of enthusiasts.
- Unlimited vehicle tracking
- Expense logging by category
- Real-time total build cost
- Progress photos and timeline
- Maintenance reminders
- Community sharing
- Build sheet export
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BuildSheet - THE APP FOR PEOPLE WHO BUILD CARS Finally know what your project car actually costs. Track every car mod, log every expense, and document your build from start to finish. TRACK YOUR BUILD Add unlimited vehicles Log every modification and upgrade Categorize expenses (engine, suspension, interior, etc.) See your total build cost in real-time Export your complete build sheet DOCUMENT YOUR PROGRESS - Before and after photos for every mod Build timeline with dated entries Share your progress with the community NEVER MISS MAINTENANCE Set reminders for oil changes, inspections, and more Track maintenance history Mileage-based and date-based reminders KNOW WHERE THE MONEY GOES - Visual breakdown by category Monthly and yearly spending views Compare budgeted vs actual costs JOIN THE COMMUNITY Share your build sheet publicly Follow other builders Get inspired by featured builds FREE FEATURES: 1 vehicle Unlimited expense tracking Progress photos Basic maintenance reminders Build sheet export PRO FEATURES ($4.99/month or $29.99/year): Unlimited vehicles AI-powered build planning Advanced analytics Priority support Early access to new features Built by car enthusiasts, for car enthusiasts. We got tired of lying about our build budgets, so we made an app to track the truth. Download BuildSheet today and start documenting your build. Terms of Use: https://buildsheet.xyz/terms.htmlQuestions? Contact us at support@buildsheet.xyz
Modfest
Log your car modifications, plan future builds, and manage your parts inventory. Track your vehicle's history, share your projects with a community of enthusiasts, and even export your build details.
- Car garage and modification logging
- Project planning with parts and costs
- Parts inventory management
- Social feed for sharing builds
- Offline functionality
- PDF export of build details
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Modfest - the ultimate tool to track your car mods, projects, and maintenance. Everything you've done to your car and everything you plan to do, in one place. Your build, your parts, your service history, and the real amount you've spent. Driven by car enthusiasts. YOUR GARAGE - Add cars, trucks, SUVs, motorcycles, and more. - Photos, specs, build notes, a modification list, and a running cost total. - Decode a VIN when you add a vehicle. - Public or private. Use it just for yourself, or share it with the world. - Sign in at modfest.app to view and edit your garage on a bigger screen. PARTS INVENTORY - Save each part with a price, a vendor link, a category, notes, and mark whether it's bought and installed on your car. - Record when you bought and installed each part, and at what mileage. - Sort into categories, search and filter your whole inventory, and reuse the same part across projects. PLAN YOUR BUILD - Break a project into steps with parts, costs, photos, notes, and links. - See the total cost, what's already installed, and what's still on the wishlist. - Export the whole project as a PDF for shop visits, insurance, or resale. - Search for other published projects and discover how-tos for your car. MAINTENANCE AND REMINDERS (PREMIUM) - Log oil changes, brakes, tires, or any service with the date, odometer, cost, and notes. - Track each car's mileage and get reminders by date or distance so you never miss a due service. - Keep a full service history and export it as a PDF for buyers, mechanics, or your own records. SHARE THE BUILD - Publish a car or a finished project to the Modfest social feed. - Message other builders in private, including photos. - Build of the Week sits at the top of the feed. - Follow other enthusiasts, like and reply to comments, and get notified when people interact with yours. - Find builds by make, model, or what someone's working on. - Tap "Copy this project" on any public build to drop it into your own projects as a private starting point. MAKE IT YOURS - Choose from multiple theme colors and light/dark modes. - Set your distance units and your currency so everything reads the way you expect. WORKS OFFLINE - Your garage, parts, and projects live on your device. - No account required. Sign in anytime for free cloud backup and to share your builds. FREE TIER - 1 car in your garage, with unlimited projects, parts, and modifications for it. - Free cloud backup. - 5 photos per project, 5 photos per car. - 1 published project on the social feed. - Project and parts list PDF export. PREMIUM ($2.99/MONTH OR $24.99/YEAR, 7-DAY FREE TRIAL) - Unlimited cars in your garage. - Maintenance tracking and reminders for every car. - Cost breakdown for every car: see where your money goes by category and over time, including cost per mile. - Fix dates: quickly fill in missing bought and installed dates across your parts. - Up to 20 photos per project, 10 photos per car. - Unlimited published projects on the social feed. - Ad-free feed. A NOTE FROM THE DEV Modfest started because I was tracking everything I did to my project car through spreadsheets, random forums, and receipts. I started working on the app to create a hub that I'd find useful to plan a build, track my parts, keep up with maintenance, and share with a community of car enthusiasts. If you've got an idea or run into a bug, email me at support@modfest.app. Modfest is built by one person who actively uses the app. Most features started as something I wanted, or something another enthusiast asked for. Modfest Premium auto-renews at the end of each billing period unless canceled at least 24 hours before the next renewal. Your free trial automatically converts to a paid subscription after 7 days unless canceled before the trial ends. Payment is charged to your Apple ID account. Manage or cancel anytime in Settings → [your name] → Subscriptions. Privacy Policy: https://modfest.app/privacy Terms of Service: https://modfest.app/terms
Screenshots
Verdict
The clearest difference is ads: BuildSheet at none against Modfest's shown. BuildSheet also leads on ratings volume (46 vs 3). On price, rating, update cadence and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. BuildSheet sells 2 in-app purchases, starting at $4.99 per month and Modfest sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for BuildSheet against 5.0 for Modfest. That said, the two scores are not equally well evidenced: BuildSheet has 46 ratings behind it against 3, so its average is the more settled of the two.
BuildSheet ships an update every 9 days, Modfest fortnightly. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.
| Parameter | BuildSheet | Modfest |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (46 ratings) | 5.0 (3 ratings) |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 46 — better | 3 |
| Update frequency | Every 9 days — better | Fortnightly |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 151 MB | 62 MB |
| Age rating | 4+ | 12+ |
| Developer | JALEN JOSEPH WILLIAMS | DAKOTA AARON LONG |
Customer experience
BuildSheet
Modfest
In-app purchases
BuildSheet
- BuildSheet Pro Monthly14 Days trial$4.991 Month
- BuildSheet Pro Yearly14 Days trial$29.991 Year
Modfest
- Modfest Premium Monthly$2.991 Month
- Modfest Premium Yearly$19.991 Year









