Best Onstar Buick Apps

37+ iOS apps curated and reviewed

3.6 avg rating
20 free apps
Updated November 2026

Out of 37+ 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 (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1myBuickmyBuickFree4.8★ (118K)YesNoNov 2026
2OnStar Guardian: Safety AppOnStar Guardian: Safety AppFree4.8★ (23K)YesNoNov 2026
3myGMCmyGMCFree4.8★ (442K)YesNoNov 2026
4GM FinancialGM FinancialFree4.8★ (51K)NoNoNov 2026
5Alpine Buick GMC South ConnectAlpine Buick GMC South ConnectFree—NoNoMay 2026
6Bill Kay Buick GMC ConnectBill Kay Buick GMC ConnectFree—NoNoMay 2026
7Dave Cross Buick GMC ConnectDave Cross Buick GMC ConnectFree—NoNoSep 2026
8Suntrup Buick GMC ConnectSuntrup Buick GMC ConnectFree1.0★ (1)NoNoMay 2026

Top Picks for Onstar Buick

myBuick#1

myBuick by General Motors Company

Start, Lock & Schedule Service
Editor's Choice
🌟 Lifestyle
4.8😞(118K ratings)
FreeAds
myBuick screenshot 1
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Control your Buick remotely, monitor its health, and manage charging from your smartphone. The app allows you to start, lock, and locate your vehicle, set cabin temperature, and schedule service appointments.

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
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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 Company

Start, Lock & Schedule Service
Worth Considering
🌟 Lifestyle
4.8😞(442K ratings)
FreeAds
myGMC screenshot 1
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Control your GMC vehicle remotely, including starting, locking, and checking its health status. Plan trips, manage charging, and schedule service appointments 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 November 2026, with a 4.8-star average from 118K 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 November 2026.
We track 37+ onstar buick apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.