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Best Onstar Buick Apps

36+ iOS apps curated and reviewed

3.9 avg rating
20 free apps
Updated September 2026

Out of 36+ onstar buick apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Onstar Buick Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1myBuickmyBuickFree4.8★ (115K)YesNoSep 2026
2OnStar Guardian: Safety AppOnStar Guardian: Safety AppFree4.8★ (23K)YesNoSep 2026
3myGMCmyGMCFree4.8★ (425K)YesNoSep 2026
4GM FinancialGM FinancialFree4.8★ (51K)NoNoSep 2026
5Sullivan Buick GMC ConnectSullivan Buick GMC ConnectFree—NoNoMay 2026
6Larry Stovesand Buick GMCLarry Stovesand Buick GMCFree5.0★ (5)NoNoMay 2026
7Net Check In - Davis GMC BuickNet Check In - Davis GMC BuickFree—NoNoMay 2026
8Bill Kay Buick GMC ConnectBill Kay Buick GMC ConnectFree—NoNoMay 2026

Top Picks for Onstar Buick

myBuick#1

myBuick by General Motors

Start, Lock & Schedule Service
Editor's Choice
🌟 Lifestyle
4.8😞(115K ratings)
FreeAds
myBuick screenshot 1
myBuick screenshot 2
myBuick screenshot 3
myBuick screenshot 4
myBuick screenshot 5
myBuick screenshot 6

Control your vehicle remotely, monitor its status, and access important information. Schedule maintenance and get assistance when you need it, all from your smartphone.

What We Love

  • 🚀 Remote start and lock/unlock features
  • 👍 Convenient app for managing vehicle
  • 🔒 Secure access with biometrics
  • 💡 Apple Watch integration

Room to Improve

  • 🐛 Inconsistent remote start functionality
  • 🐛 Frequent login/authentication issues
  • 🐛 App crashes and freezes
  • 🐛 Unreliable vehicle data updates
  • 🔒 Excessive security measures
OnStar Guardian: Safety App#2

OnStar Guardian: Safety App by OnStar, LLC

Emergency Roadside Assistance
Strong Contender
🌟 Lifestyle
4.8😐(23K ratings)
FreeAds
OnStar Guardian: Safety App screenshot 1
OnStar Guardian: Safety App screenshot 2
OnStar Guardian: Safety App screenshot 3
OnStar Guardian: Safety App screenshot 4
OnStar Guardian: Safety App screenshot 5
OnStar Guardian: Safety App screenshot 6

This app provides roadside assistance, crash response, family location sharing, and emergency services directly from your smartphone. It offers help in any vehicle, including motorcycles, and allows sharing with up to seven family members.

What We Love

  • 🚀 Amazing tracking service
  • 👍 Highly recommended
  • 🚀 Peace of mind
  • 🚀 Great addition to new car
  • 🚀 Phenomenal

Room to Improve

  • 🔋 Constant drain
  • 🔋 Battery hog
  • 🐛 Unreliable, glitchy, & getting worse
  • 🐛 Not accurate
  • 🐛 Errors on every page just trying to create an account
  • 🐛 Meh, nice for new phones
myGMC#3

myGMC by General Motors

Start, Lock & Schedule Service
Worth Considering
🌟 Lifestyle
4.8😞(425K ratings)
FreeAds
myGMC screenshot 1
myGMC screenshot 2
myGMC screenshot 3
myGMC screenshot 4
myGMC screenshot 5
myGMC screenshot 6

Remotely control your vehicle's climate, start the engine, and locate it. Monitor vital vehicle information like fuel, tire pressure, and oil life. Schedule service appointments and request roadside assistance directly from your smartphone.

What We Love

  • 🚀 Fast app
  • 🔒 Robust security features
  • 👍 Convenient remote features
  • 👍 Helpful diagnostics

Room to Improve

  • 🐛 Frequent crashes and bugs
  • 🔋 Drains battery
  • 👎 Unreliable connectivity
  • 👎 Outdated and basic functionality
  • 👎 Poor customer support

More Onstar Buick apps to explore

FAQ about Onstar Buick

What are the best onstar buick apps for iPhone?
myBuick tops our onstar buick apps ranking as of September 2026, with a 4.8-star average from 115K App Store ratings, and it's free to download.
Yes — 20 of the top onstar buick apps we rank are free to download, including myBuick and OnStar Guardian: Safety App.
myBuick shows ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 36+ onstar buick apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
The myBuick app allows you to remotely start, lock, and unlock your vehicle. You can also monitor key vehicle information such as fuel level, tire pressure, oil life, and odometer readings. Additionally, it provides access to digitized owner manuals and roadside assistance, and enables you to schedule service appointments.
To use the myBuick app, you need a compatible device with a data connection. A trial or paid OnStar plan is also necessary, along with a properly equipped vehicle. The app's functionality is dependent on various factors including wireless networks, vehicle electrical systems, and GPS signal.