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Best Simple Interlock Apps

250+ iOS apps curated and reviewed

2.2 avg rating
20 free apps
Updated October 2026

Simple IID Client Portal is the household name in simple interlock, but it's far from the only option. We track 250+ alternatives and competitors on iOS β€” many free, many higher-rated than you'd expect.

Compare top Simple Interlock Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Simple IID Client PortalSimple IID Client PortalFreeβ€”NoNoOct 2026
2IntoxalockIntoxalockFree1.7β˜… (903)NoNoOct 2026
3Interlock Warm UpInterlock Warm UpFree1.4β˜… (11)NoNoOct 2026
4AAInstallerAAInstallerFreeβ€”NoNoSep 2026
5Smart Start Client PortalSmart Start Client PortalFree2.0β˜… (114)NoNoNov 2026
6C3 SmartC3 SmartFree1.0β˜… (3)NoNoMay 2026
7Southern Lock & SupplySouthern Lock & SupplyFreeβ€”NoNoMay 2026
8Lock Connection AdminLock Connection AdminFreeβ€”NoNoMay 2026

Top Picks for Simple Interlock

Intoxalock#2

Intoxalock by Consumer Safety Technology, LLC

Ignition Interlock Device
Strong Contender
πŸ’Ό Business
1.7😞(903 ratings)
Free
Intoxalock screenshot 1
Intoxalock screenshot 2
Intoxalock screenshot 3
Intoxalock screenshot 4
Intoxalock screenshot 5
Intoxalock screenshot 6

Manage your ignition interlock device account with ease. Track your status, make payments, schedule calibrations, and access important device information. Stay compliant and connected to your service center.

What We Love

  • πŸš€ Convenient app features
  • ⏱️ Time-saving features
  • πŸ”’ Responsive customer support

Room to Improve

  • πŸ’° Excessive hidden fees
  • πŸ”‹ Battery draining device
  • πŸ”§ Frequent device malfunctions
  • ⏰ Dangerous driving distractions
  • πŸ€– Poor customer service
  • 🀯 Frustrating user experience

More Simple Interlock apps to explore

FAQ about Simple Interlock

Are there free simple interlock apps for iPhone?
Yes β€” 20 of the top simple interlock apps we rank are free to download, including Simple IID Client Portal and Intoxalock.
Simple IID Client Portal has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 250+ simple interlock apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.