Best 034Spi Apps

249+ iOS apps curated and reviewed

4.0 avg rating
20 free apps
Updated September 2026

Every iPhone needs a few good 034spi apps. We benchmark 249+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top 034Spi Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1034SPI034SPIFree4.2★ (42)NoNoSep 2026
2myChevroletmyChevroletFree4.8★ (968K)YesNoSep 2026
3myCadillacmyCadillacFree4.8★ (161K)YesNoSep 2026
4TeslaTeslaFree4.7★ (119K)NoNoSep 2026
5Spark ECUSpark ECUFree1.0★ (1)NoNoSep 2026
6myBuickmyBuickFree4.8★ (115K)YesNoSep 2026
7Speedometer 55 GPS Speed & HUDSpeedometer 55 GPS Speed & HUDFree4.8★ (64K)NoNoSep 2026
8MyMazdaMyMazdaFree4.7★ (207K)NoNoSep 2026

Top Picks for 034Spi

034SPI#1

034SPI by 034motorsport Industries, LLC

Dynamic+ Smartphone Interface
Editor's Choice
🌟 Lifestyle
4.2(42 ratings)
Free
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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.

myChevrolet#2

myChevrolet by General Motors Company

Start, Lock & Schedule Service
Strong Contender
🌟 Lifestyle
4.8😞(968K ratings)
FreeAds
#34in Lifestyle
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Remotely control your vehicle's climate and starting functions. Track essential vehicle metrics like fuel and tire pressure. Schedule maintenance and request roadside assistance directly from your smartphone.

What We Love

  • 🚀 Remote start and unlock features
  • 👍 Convenient vehicle diagnostics
  • 🔒 Secure access to vehicle data
  • 👍 Searchable owner's manual

Room to Improve

  • 🐛 Frequent app crashes and freezes
  • 🔍 Unreliable vehicle location tracking
  • 🔋 Inconsistent battery status updates
  • 🤔 Confusing app navigation and UI changes
  • 🔒 Frustrating login and authentication issues
myCadillac#3

myCadillac by General Motors Company

Start, Lock & Schedule Service
Worth Considering
🌟 Lifestyle
4.8😞(161K ratings)
FreeAds
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Control your vehicle remotely, including starting the engine and adjusting climate. Locate your car, monitor key metrics like fuel and tire pressure, and schedule maintenance or request roadside assistance directly from your smartphone.

What We Love

  • 🚀 Remote start and unlock features
  • 💡 Useful vehicle diagnostics and maintenance tracking
  • 👍 Clean and modern app design

Room to Improve

  • 🐛 Frequent app crashes and freezes
  • ⏱️ Slow response times and delayed updates
  • 🔒 Security concerns with login issues
  • 🔋 Battery drain when using app

More 034Spi apps to explore

FAQ about 034Spi

What are the best 034spi apps for iPhone?
034SPI tops our 034spi apps ranking as of September 2026, with a 4.2-star average from 42 App Store ratings, and it's free to download.
Yes — 20 of the top 034spi apps we rank are free to download, including 034SPI and myChevrolet.
034SPI has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 249+ 034spi apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
The 034SPI app allows you to flash your car's ECU and TCU tunes, change fuel maps, configure live data displays, and record data logs. It also includes diagnostic tools for reading and clearing DTC/CEL codes.
Key features include the ability to complete any ECU or TCU tune flash, quickly flash different fuel octane or transmission files, and utilize user-configurable live data displays. It also offers high-speed data logging with easy upload and the capability to read and clear DTCs.