Comparison
WrenchPilot vs Fullbay
Short version. Fullbay is the established category leader for heavy-duty diesel shop software, with a decade in market, MOTOR (Mitchell 1) labor times bundled in, and deep fleet-account billing. WrenchPilot is a newer, shop-built alternative with a flat (non-per-user) pricing model, an embedded AI agent in the product's data path, and a mobile-first technician interface. Independent shops, solo mechanics, and shops growing from 1 to about 10 bays often fit WrenchPilot better; mid-to-large fleet-service operations relying on bundled SRT and mature fleet portals often fit Fullbay better. Below is a fair side-by-side, then honest sections on where each wins.
Last reviewed for accuracy: May 2026. Fullbay statements describe widely reported product positioning and may change as Fullbay ships updates; verify current details on fullbay.com before a final decision.
Side-by-side: where they actually differ
Each row states what is true of each product. Theedgecolumn flags which product is meaningfully ahead on that dimension today, in our reading. Some are ties. Read the row content, not just the dot.
| Dimension | WrenchPilot | Fullbay | Edge |
|---|---|---|---|
| Best fit | Independent diesel and heavy-duty truck shops, solo mechanics, and shops scaling from 1 to 10 bays. | Mid-to-large heavy-duty shops and fleet-service operations, especially those with deep customer-portal and AR billing needs. | Tie |
| Built by | An active diesel-shop owner (Xpress Diesel). Product decisions are made against a real shop floor, not just customer interviews. | Established software company; publicly known for being founded around 2014 and growing into the heavy-duty shop category leader by review count on Capterra and G2. | Tie |
| Maturity | Newer. Smaller customer base. Faster shipping cadence on new features. | A decade in market. Larger customer base. More established support and onboarding processes. | Fullbay |
| Pricing model | Flat plan, no per-user fees. Public pricing on /pricing. Includes the Lite tier for solo mechanics. | Per-user pricing (sales-quoted). The model scales linearly with team size, which is typical of enterprise heavy-duty SaaS. | WrenchPilot |
| Standard repair time / labor data | WrenchPilot uses an internal labor-time engine (Advanced Repair Time / ART) plus learned medians from your own shop's billed hours. | Fullbay packages MOTOR (now Mitchell 1) heavy-duty labor times into the product. For shops that rely on a third-party SRT catalog, this is a meaningful advantage out of the box. | Fullbay |
| Fleet customer accounts & AR | Standard customer + invoice + payments stack, including AR aging and accounts-receivable workflow. | Fleet billing is a primary product focus. Customer portals, fleet hierarchies, and consolidated invoicing for fleet accounts are well developed. | Fullbay |
| AI / automation | AI is in the product's data path: an embedded job assistant that can build estimates, propose action items, and pull from shop data with semantic tool discovery. Not a sidebar chat. | AI features in Fullbay today are scoped — voice-to-text on technician notes, service-order assists. Useful, but narrower in surface than WrenchPilot's embedded agent. | WrenchPilot |
| Mobile / technician interface | Mobile-first technician flows: tap-to-clock, photo intake, parts request from the bay. Designed for the bay, not just the front desk. | Mobile apps for technicians and admins exist; many users describe the desktop interface as the primary surface. | WrenchPilot |
| Built-in payments & accounting | Stripe, Square, and QuickBooks Online connections shipped in product. Invoice payment links, terminal devices, and QBO sync are not separate add-ons. | Strong QuickBooks integration. Payments and merchant processing follow Fullbay's ecosystem partners and packaging. | Tie |
| Reviews & third-party signal | Newer to public review platforms. Active building of Capterra / G2 / Trustpilot presence is in progress. | Hundreds of public Capterra and G2 reviews built up over a decade. If you weight social proof from review platforms, Fullbay is materially ahead today. | Fullbay |
| Implementation & switching | Self-serve signup; small shops can be live in under a day. Larger imports go through a guided onboarding. | Sales-led onboarding with implementation specialists; well-suited to larger or more complex switches but slower for small shops. | WrenchPilot |
Where Fullbay genuinely wins
We'd rather you pick the right tool than pick us for the wrong reasons. There are concrete situations where Fullbay is the better choice:
- You need bundled MOTOR / Mitchell 1 labor times in the box. Fullbay packages those in. If you build estimates against a third-party SRT catalog rather than your own historical medians or an internal labor-time engine, this is a real advantage out of the box.
- Fleet billing is the heart of your business. If you primarily run a fleet-service operation — large customer hierarchies, consolidated invoicing across locations, mature customer portal usage — Fullbay's fleet-account workflows have years of polish on a primary use case.
- Public review volume is a hard requirement for your buying committee. Fullbay has accumulated hundreds of public Capterra and G2 reviews over a decade. WrenchPilot is newer to those platforms. If your buying process weights review count heavily, this matters in the short term.
- You want the more conservative, more proven option, full stop. A decade in market, established support, and an extensive customer-success organization is a fair reason to pick the incumbent.
Where WrenchPilot tends to fit better
- You're an independent shop or growing from 1 to ~10 bays. Flat (non-per-user) pricing keeps cost predictable as you add technicians. Self-serve setup means a small shop can be live in under a day rather than waiting on sales-led implementation.
- You're a solo mechanic. The Lite tier is purpose-built for a one-person operation, a segment Fullbay does not target.
- You want the AI to actually do shop work, not just clean up notes. WrenchPilot ships an embedded job assistant that builds estimates, proposes action items, and reasons over your shop's own data with semantic tool discovery — not a sidebar chat widget. Fullbay's AI today is narrower (voice-to-text, service-order assists). Both are useful; they're different in scope. What WrenchPilot's AI actually does.
- You spend most of your day in the bay, not at the desk. Tap-to-clock, photo intake, and parts requests are designed for technician phones, not just admin desktops.
- You'd rather buy from the people who run a diesel shop. WrenchPilot is built and used inside Xpress Diesel. Product decisions are made against a real shop floor — feature decisions, edge cases, the small UX things technicians notice.
Frequently asked questions
Is WrenchPilot a Fullbay alternative?
Yes — WrenchPilot is built for the same heavy-duty diesel and truck repair shop audience as Fullbay. The two products differ on pricing model (WrenchPilot flat vs. Fullbay per-user), included reference data (Fullbay packages MOTOR / Mitchell 1 labor times; WrenchPilot uses its own ART engine plus learned medians from a shop's own data), AI architecture (WrenchPilot ships an embedded agent in the product; Fullbay's AI is currently narrower features like voice-to-text), and audience (WrenchPilot leans toward independent shops and solo mechanics; Fullbay is established with mid-to-large fleet-service operations).
Where does Fullbay genuinely win over WrenchPilot today?
Three places. (1) Maturity — Fullbay has been operating since around 2014 and has a much larger public review footprint, which matters if third-party social proof is part of your decision. (2) Bundled MOTOR / Mitchell 1 labor times, useful if you specifically rely on a third-party SRT catalog out of the box. (3) Fleet-account billing depth — Fullbay's customer portal and fleet AR workflows are a long-running product focus. Shops that lead with fleet-account complexity should evaluate this directly.
Where does WrenchPilot tend to fit better?
Independent diesel and heavy-duty truck shops, solo mechanics on the Lite tier, and shops scaling from one bay to about ten. The flat (non-per-user) pricing model is more predictable as you add technicians. The embedded AI agent is materially deeper than the AI surface in Fullbay today. And the product is built and used inside an active diesel shop, which shows in the technician-facing UX.
Can I migrate from Fullbay to WrenchPilot?
Yes. Customers, vehicles, parts, and historical jobs/invoices can be imported. The depth of import depends on what you can export from Fullbay and your data shape. Larger or more complex migrations go through a guided onboarding with the WrenchPilot team rather than self-serve.
Is WrenchPilot cheaper than Fullbay?
On most team sizes, yes — WrenchPilot is a flat plan with no per-user fees, while Fullbay's pricing scales with users. The actual difference depends on your team count and which add-ons you would have purchased. Public WrenchPilot pricing is on /pricing; Fullbay pricing is sales-quoted. Compare against your real headcount before deciding.
See WrenchPilot against your own shop's data
The comparison above is general. The decision is specific to your shop, team size, and how you bill. Book a walkthrough — we can pull your data live and show how WrenchPilot would handle a real day in your bay.