034SPI vs BuildSheet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
034SPI
This app allows users to flash their car's ECU/TCU, change fuel maps, and configure live data displays. It also provides diagnostic tools like reading and clearing DTC codes. Compatible with Dynamic+ ECU/TCU tunes and the Dynamic+ End User Flashing Dongle.
- Flash ECU/TCU tunes
- Change fuel octane/transmission files
- Configure live data displays
- High-speed data logging
- Read & clear DTC codes
- Perform adaptations/recalibrations
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Designed for use on iPhone/iOS as well as Apple Silicon-equipped laptops (M1, M2, M3), 034SPI allows you to easily flash your car, change fuel maps, configure live data displays, record and submit data logs to 034Motorsport's Tuning Support team, and utilize diagnostic support tools such as DTC/CEL code read/clear and more! Available now for use with any Dynamic+ ECU or TCU tune and the latest Dynamic+ End User Flashing Dongle (May 2023 & Newer)! Full App Features: Complete Any ECU Or TCU Tune flash Quickly Flash Different Fuel Octane Or Transmission Files Flash ECU/TCU Using Mobile Device's Internet Connection Enhanced Flashing Protocol Protections For Increased Flashing Stability User-Configurable Live Data Displays Dozens Of Defined Variables Available Multiple Display Types Available for Live Dt High-Speed Data Logging Of Pre-Defined Variables Easy Upload Of Logs To 034Motorsport Server Data Log Analysis Services Available Free Of Charge Read & Clear DTCs On ECU & TCU View Emissions Monitor Statuses Perform Adaptations/Recalibrations* Throttle Body Adaptation Fuel Tank Drain *Available for limited platforms, coverage expanding regularly
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 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
Screenshots
Verdict
The clearest difference is rating: BuildSheet at 5.0 against 034SPI's 4.2. BuildSheet also leads on review sentiment (75% vs 53%) and update cadence (every 8 days vs every 2 weeks). 034SPI's advantage is in-app purchases (none vs 2) and iOS requirement (12.2 vs 15.0). On price, ratings volume, ads and device support 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. 034SPI asks for nothing beyond the download.
BuildSheet holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 42 and 42 respectively. Written reviews point the same way: 53% of 034SPI's written reviews are positive against 75% of BuildSheet's.
034SPI ships an update every 2 weeks, BuildSheet every 8 days. The most recent releases landed on September 16, 2026 and September 14, 2026 respectively.
| Parameter | 034SPI | BuildSheet |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (42 ratings) | 5.0 (42 ratings) — better |
| Positive reviews | 52.6% of reviews | 75.0% of reviews — better |
| Number of ratings | 42 | 42 |
| Update frequency | Every 2 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.2 — better | 15.0 |
| Further details — not scored | ||
| Size | 124 MB | 148 MB |
| Age rating | 4+ | 4+ |
| Developer | 034motorsport Industries, LLC | JALEN JOSEPH WILLIAMS |
Customer experience
034SPI
BuildSheet
In-app purchases
034SPI
No in-app purchases
BuildSheet
- BuildSheet Pro Monthly14 Days trial$4.991 Month
- BuildSheet Pro Yearly14 Days trial$29.991 Year









