Smart Start vs LifeSafer (2026): Published Prices, Side by Side

Both install court-approved car breathalyzers nationwide and both can usually book you within days. The difference is what each one publishes in writing, and what that adds up to over your term.

OUR PICK LifeSafer, for most people — but get both quotes

LifeSafer publishes a lower band on both lines — $70 to $150 to install against Smart Start’s $150 floor, and $50 to $120 a month against $89.99 and up. It also guarantees same-day installation or refunds the fee.

Smart Start costs more at the bottom of the range but tells you the exact figure for your state before you call, and doesn’t tie you to a term. If certainty matters more than the last $20 a month, that’s worth something.

Both quote by state, vehicle and service center. The spread between two quotes for the same car is often wider than the spread between the brands, so make both calls.

Smart Start
Free quote and install appointment
Call Smart Start
LifeSafer
Free quote and install appointment
Call LifeSafer

Side by side

Published rates only. Where a company doesn’t publish a figure, this table says so rather than filling the gap.

CompareSmart StartLifeSafer
6 months$690–$810$370–$870
12 months$1,230–$1,470$670–$1,590
24 months$2,310–$2,790$1,270–$3,030
Monthly leaseFrom $89.99, by state$50–$120
InstallationFrom $150$70–$150
CalibrationFrom $25 per visitAbout $25 per visit
RemovalNot publishedSaid to be included in its quoted pricing
Other feesNot publishedNot published
ContractNo long-term contractNot published
CoverageStatewide networks; the one brand on every state list we could readNationwide; absent from a few state lists
PayingMonthly, via client portalOnline, phone or check
Free quote Call Call

Totals are installation plus monthly lease across the term, at published rates. They exclude calibration visits, removal, state fees and violation charges, and none of them is a quote. Run your own numbers →

What the numbers don’t show

The published floor isn’t your price

Both quote per vehicle and per service center. A 2012 sedan with standard wiring installs at the bottom of the range; a hybrid, a diesel truck or anything with an aftermarket alarm takes longer to wire and costs more. Ask each for the all-in monthly, the install fee for your vehicle, and the removal fee — that last one is the number people forget to ask about and argue over later.

Where you’ll drive every month or two

Calibration visits fall every 30 to 90 days depending on your state, for the whole term. Ten extra miles each way, a dozen times over, outweighs a few dollars of monthly difference. Ask each company for the nearest service center to your ZIP and how far out it’s booking.

Fees that appear later

Lockout resets, vehicle transfers, missed appointments and late device returns are where surprise bills come from, and not every provider publishes them. Get the removal process and the final month’s billing in writing before installation.

The devices themselves

Both use fuel-cell sensors, both require a startup test and rolling retests while driving, and both report failed tests and missed calibrations to your monitoring authority. Day to day there is little practical difference. Price and distance are the decision.

Which one to call

Call Smart Start if…

  • You want a state-specific rate published in advance
  • You want no long-term contract
  • You’re in a state where few brands are approved
Call Smart Start

Call LifeSafer if…

  • You want the lower published price
  • You need installation today
  • You’d rather have calibration and removal quoted together
Call LifeSafer
Check your state’s approved list before you book. Each state certifies which vendors and which service centers may install an interlock, and an uncertified installation won’t satisfy your order. Approval differs by brand and changes over time. Find your state’s approved providers →
Most states also require an SR-22 filing to reinstate your licence. It’s a certificate your insurer files with the state, not a policy, and rates vary widely between carriers — shopping it is where most of the savings are. Compare SR-22 quotes →

Common questions

Is Smart Start or LifeSafer cheaper?
On published rates, Smart Start lists from $89.99, by state a month with installation from $150, and LifeSafer lists $50–$120 a month with installation $70–$150. Both quote by state and vehicle, so the only way to know your price is to get both quotes.
How much will the whole term cost?
Taking published installation and lease rates only, twelve months runs about $1,230 to $1,470 with Smart Start and $670 to $1,590 with LifeSafer. Neither figure includes calibration visits, removal, state fees or violation charges.
Can I switch providers partway through my term?
Usually yes, but you pay to remove one device and install another, and any minimum-term commitment still applies. Check with your court or monitoring authority first so there is no gap in monitoring.
Do the devices work differently?
Not in any way that changes your day. Both use fuel-cell sensors, require a breath test to start the car and rolling retests while driving, and report failed tests and missed appointments to the state.
How fast can I get installed?
Both advertise appointments within a few days and often same day. Installation takes about an hour. Bring the vehicle, your court or DMV paperwork, and photo ID.
Sources — each provider’s own published rates, checked September 2026:
  • Smart Start state cost pages (installation from $150; lease from $89.99 in Texas, $99.99 in Pennsylvania, $109.99 in Washington; service from $25): www.smartstartinc.com
  • LifeSafer published pricing (installation $70–$150, lease $50–$120, calibration about $25 every 30–90 days, same-day appointment or installation refunded): www.lifesafer.com
Provider pricing changes without notice and is re-checked quarterly. See our editorial policy.
Advertising disclosure: We may be compensated when you contact a provider through our numbers or links. This doesn’t affect our rankings or the figures above, which come from each provider’s published pricing. Informational only, not legal advice.