Best weigh station bypass apps for oversize trucking in 2026
Best app-based bypass: Drivewyze PreClear at $17.99 a month with a 30-day free trial. Best transponder bypass: PrePass. Best free entry: Drivewyze Free for safety alerts. And the one thing to know before you buy any of them: an oversize or overweight permitted load must pull into the scale in every state — no bypass app covers it.
A weigh station bypass service checks your carrier, truck and safety score before you reach an open scale and tells you in the cab whether you may keep rolling. Drivewyze PreClear does it with an app on your phone, tablet or ELD; PrePass does it with a windshield transponder, its app, or both. For open-deck carriers the honest math has two parts: bypasses save time and fuel on legal loads, and permitted oversize or overweight loads legally pull in everywhere regardless of what the app says. The 2026 superload permit rules explain what puts a load past the routine limit.
TL;DR
Drivewyze PreClear is the app-based pick: $17.99 a month, 900+ sites, 30-day free trial.
Oversize, overweight and permitted loads must pull into the scale in all states — apps do not cover them.
PrePass works by transponder and app; it does not publish its monthly bypass fee.
NORPASS, Oregon Green Light and Weigh2GoBC accept transponders only.
Bypass eligibility still depends on your carrier safety score, and random pulls happen even when you qualify.
Do weigh station bypass apps work for oversize loads
No — and this is the sentence that saves you a fine. Drivewyze states plainly that drivers hauling oversize, overweight or permitted loads must ignore bypass commands and pull into inspection sites in all states and provinces, unless a listed state exception applies. PrePass restricts special load types the same way. A permitted wide load on an RGN is pulling into every open scale on the route, app or no app.
What the apps cover is the rest of your week: the legal-height step deck load, the lumber flatbed, the empty deadhead back home. Trucks over 10,000 pounds are required to stop at open scales unless they qualify to bypass, so a legal deck truck that runs interstates daily gets real value — time not spent in line and fuel not burned decelerating and re-accelerating a loaded rig.
What makes a good weigh station bypass service
Coverage on your lanes. A bypass service only pays where the sites are; check the states on your regular routes before subscribing.
Hardware you already have. An app on a phone or ELD costs nothing extra; a transponder is another windshield device to install and power.
A published price. One of the two big services prints its number; the other quotes at signup.
Honest eligibility rules. The service should tell you up front which loads it cannot cover — oversize, overweight, placarded hazmat and livestock loads are commonly excluded.
A safety score you can improve. Your carrier's safety score decides bypass eligibility, so in-cab alerts that prevent violations earn more bypasses.
The best weigh station bypass apps at a glance
Service | Best for | Standout | Cost | Key limitation |
Drivewyze PreClear | App-based bypass on legal loads | Works on phone, tablet or ELD; 900+ sites | $17.99/month, 30-day free trial | No oversize or overweight loads |
PrePass | Transponder coverage and dual service | Transponder plus app; large site network | Fee disclosed at signup | Transponder required at some networks |
Drivewyze Free | Safety alerts at no cost | Free proactive in-cab alerts | $0 | No bypassing — alerts only |
1. Drivewyze PreClear: best app-based bypass for open-deck trucks
PreClear is the largest weigh station bypass service, with more than 900 sites across 47 states and provinces, and it runs entirely on an app — no transponder to buy or mount. It reads your position and eligibility as you approach a participating site and sends the bypass command in the cab. Mobile users get a 30-day free trial, then $17.99 USD a month, with fleet pricing available.
Drivewyze PreClear pros:
Published price and a free month to test against your own routes.
No hardware purchase — it runs on a device you already carry.
The largest bypass network, so coverage survives lane changes.
Drivewyze PreClear cons:
Oversize, overweight and permitted loads must pull in everywhere unless a listed state exception applies.
Bypass eligibility still rides on your carrier safety score; a rough score means red lights.
Some state networks are transponder-only, so the app alone does not cover them.
Drivewyze PreClear pricing: $17.99 USD a month after a 30-day free trial. Best for: the flatbed or hotshot operator running legal loads on app-friendly interstate lanes who wants bypass without another windshield device.
2. PrePass: best transponder bypass when you want dual service
PrePass delivers bypass through a windshield transponder, its mobile app, or both, and it operates a large network of participating sites. For a carrier that also crosses into transponder-only networks — NORPASS, Oregon Green Light and Weigh2GoBC accept transponders and are not compatible with apps — the transponder is the hardware that covers them. PrePass does not publish its monthly bypass fee; its terms say the amount is disclosed when you sign up.
PrePass pros:
Transponder plus app gives two ways to receive bypass commands.
Covers transponder-only networks the apps cannot reach.
Long-established program with deep state-agency integration.
PrePass cons:
The fee is not published, so benchmarking against Drivewyze means calling.
Oversize and overweight permit loads face the same pull-in restrictions as every other service.
A transponder is another device to install, power and de-install when the truck sells.
PrePass pricing: not published; disclosed at signup. Best for: carriers whose lanes include the Pacific Northwest and other transponder-only networks.
3. Drivewyze Free: best free entry point
Drivewyze Free is a no-cost safety layer: proactive in-cab alerts for weigh stations, seat-belt reminders, sudden-braking zones and similar hot spots. It does not bypass anything, but it is the same app stack as PreClear, so trying it costs nothing and the alert history builds the safety record that improves bypass eligibility later.
Drivewyze Free pros:
Free for fleets and owner-operators, forever.
Safety alerts that feed the score bypass services judge you on.
Drivewyze Free cons:
No bypassing — you stop at every open scale.
Alerts, not compliance; it does not replace your ELD.
Drivewyze Free pricing: $0. Best for: a new authority building a safety record before paying for bypass.
How we ranked
Three criteria, weighted in order: published, testable pricing; hardware simplicity for a one-truck open-deck operation; and honest treatment of oversize and overweight exclusions — a service that pretends permitted loads can bypass is worth nothing to this audience. Pricing came from each vendor's published FAQ and terms; exclusions came from the vendors' own bypass-restriction pages. No service paid for placement.
Should an oversize carrier pay for a bypass app at all
Yes — for the legal miles, and no — for the permitted ones. If most of your gross comes from permitted RGN and lowboy freight, budget your scale time into the rate the way you budget permit and escort costs, and let the bypass app earn its $17.99 on the flatbed and deadhead miles between heavy haul jobs. If you run a legal-deck truck at 80,000 pounds and under, the app pays for itself in saved line time on any route with regular scale encounters.
FAQ
Can oversize loads use weigh station bypass apps in 2026?
No. Drivewyze requires drivers hauling oversize, overweight or permitted loads to pull into inspection sites in all states and provinces unless a listed state exception applies, and PrePass restricts special load types the same way.
How much does Drivewyze PreClear cost per month?
$17.99 USD a month after a 30-day free trial, per truck, with fleet pricing available for larger operations. PrePass does not publish its bypass fee; it discloses it at signup.
What is the best weigh station bypass app for owner-operators?
Drivewyze PreClear is the default: the largest network at 900+ sites, a published $17.99 a month price, and no transponder hardware. The load side is a different purchase — OpenDeck, powered by Load Work, covers open-deck freight.
Do I need a transponder or will an app work?
An app works at most Drivewyze-participating sites, but NORPASS, Oregon Green Light and Weigh2GoBC accept transponders only. If you run those states, a PrePass transponder is the hardware that covers them.
Why did I get a red light when I pay for bypass?
Bypass eligibility depends on your carrier safety score, site staffing and load type. Officers can also call in trucks at random or for visible defects like an underinflated tire — treat every bypass as a maybe, never a right.
Can PrePass and Drivewyze run at the same time?
Yes. Vendors' guidance: if either service tells you to pull in, you pull in, and you only bypass when both clear you. At sites with a transponder reader, follow the transponder.
Related guides
Skip the scale legally, book the load
The bypass app handles the scales on your legal miles; the board handles the freight that pays for them. OpenDeck, powered by Load Work, filters flatbed, hotshot, step deck and RGN loads to your trailer with broker ratings and contact details before you call, and Load Work Pro runs a flat $109 a month. Check the OpenDeck pricing page, finish signup on the Load Work platform, and keep both the scale stops and the empty miles down.
Find legal-deck loads worth the miles
Open-deck freight filtered to your trailer, with broker ratings before you call.
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