Bookworks (by KeyInfoTech) is a long-established fuel and petroleum ERP for heating-oil, propane, and wholesale fuel dealers, with back-office accounting, delivery scheduling, and DTN and tax-form automation. If you are an independent dealer with roughly 100–800 customers and a handful of trucks, you may find Bookworks is more platform — and more cost — than you need. This page is an honest comparison, including where Bookworks is genuinely the better choice.
What Bookworks costs
Bookworks is quote-based / demo-only, with no published pricing and no review-site figures. As a full ERP, licensing and implementation are enterprise-scale.
What FillDesk Pro does differently
FillDesk Pro is a one-time license, not a subscription: $999 for the delivery platform (or $1,499 with basic HVAC) plus a flat $149/year for hosting and compliance updates — no per-user or per-truck fees. The driver app is offline-first and runs as a web app on any phone, so there is no App Store fee and no dead-zone downtime. And your data is isolated to your account and exportable to CSV or JSON any time — you own it, you are not renting access to it.
Automated delivery prediction and scheduling, level even-payment options, keep-fill and tank monitoring, wholesale margin tracking, DTN integration, and native tax reporting across many states.
Feature comparison
| Feature | Bookworks | FillDesk Pro |
|---|---|---|
| Product type | Legacy fuel/petroleum ERP | Focused delivery + compliance app |
| Pricing model | Quote / demo-only, enterprise | One-time license |
| Wholesale / multi-state tax | Deep (DTN, 32+ states) | Not included (retail-focused) |
| Offline driver phone app | Varies | Offline-first web app |
| Degree-day forecasting | Yes (keep-fill) | Yes, self-calibrating K-factor |
| DVIR route blocking (49 CFR 396) | Varies | Built in |
| Cylinder DOT requalification (180.209) | Varies | Built in |
Comparison reflects Bookworks's published profile as of 2026; "varies" means it depends on the module or plan you buy. See our verification notes for sources.
When Bookworks is the right choice
If you run wholesale alongside retail and need deep petroleum-accounting and multi-state tax automation, a legacy ERP like Bookworks has breadth a focused tool does not. We would rather send you to the right tool than sell you the wrong one. And FillDesk Pro is deliberately narrow: FillDesk Pro is deliberately focused on delivery, forecasting, and compliance for small dealers. It does not currently include advance-purchase or capped-price fuel plans, level monthly even-payment plans, automated fuel-excise tax calculation or excise-return exports, a homeowner web login, or advanced receivables tools such as automated late-fee assessment and end-of-day driver cash totals. If those are central to how you operate, a heavier platform may serve you better — and during a pilot we will tell you honestly if that is the case. If those capabilities are core to how you run, Bookworks or another heavier platform is likely the better fit — and during a free pilot we will tell you so directly.
Pilot program
The fair way to compare software is to run it. FillDesk Pro's three-month pilot puts the real product on your real routes, free, with nothing owed until you decide. Related: software for small dealers, the offline driver app.