Pay application software compared
2026-09-04 · 6 min read
Every subcontractor starts billing in a spreadsheet, and most should. The question is what breaks first — the continuation sheet, the waiver chain, or the A/R visibility — because that is what decides which platform is worth paying for.
| Best overall | Depends what broke first | Billing workflow, compliance chain, or project-wide visibility. |
| Best free option | A checked schedule of values | Most rejections are arithmetic, not tooling. |
| Best for retainage tracking | A platform with A/R reporting | Retainage is invisible in most billing spreadsheets. |
Feature matrix
Our pick: the tool that fixes the specific thing that broke
| Feature | Siteline | Trimble Pay |
|---|---|---|
| Pay app management | Yes | Yes |
| Lien waiver workflow | Yes | Yes |
| Lower-tier / vendor collection | Yes | Yes |
| A/R reporting | Yes | — |
| Collections management | Yes | — |
| Forecasting | Yes | — |
| Part of a wider suite | — | Trimble Construction One |
| Published list price | Not published | Not published |
What each one is, from its own page
Siteline positions itself as pay app software for subcontractors, listing pay app management, lien waiver management, lien rights management, vendor management, A/R reporting, collections management and forecasting. Its own page states subcontractors have billed over $14B across 250k+ projects.
Trimble Pay — formerly Flashtract — is now part of Trimble Construction One and describes itself as payment, compliance and lien waiver technology that streamlines subcontractor payments.
Procore is a project-management platform rather than a billing tool; its pricing page is headed “Plans and Pricing [Estimate]” and offers unlimited users through a requested estimate rather than a list price.
None of them publish a price
Every pricing page we read on 2026-09-04 routes to a demo, a quote or an estimate. That is the honest state of the market and it is worth knowing before you budget: your price is a negotiation, and your leverage is your project count, your counterparty count and your monthly volume.
Do that arithmetic before the demo, not during it.
What actually breaks first
For most subcontractors the first failure is the continuation sheet — the schedule of values stops reconciling once change orders accumulate, and applications start coming back. That is fixable with discipline and the schedule of values builder, not with software.
The second failure is the waiver chain, and it fails at tiers rather than at volume. The third is visibility: nobody can say, on a Tuesday, how much is outstanding and how much of it is retainage. That third one is where reporting features earn their money.
Whatever you use, the federal clock is the same: a progress payment is due 14 days after the designated billing office receives a proper payment request, and an improper invoice must be returned within 7 days with reasons.
Buying checklist
- What specifically broke — arithmetic, waivers, or visibility?
- Does it generate the application, or only store it?
- Does it track retainage as a distinct balance?
- Does it collect from your lower tiers, or only from you?
- What does your data look like on the way out?
Sources
- Siteline - Our Pricing
Siteline lists Pay App Management, Lien Waiver Management, Lien Rights Management, Vendor Management, A/R Reporting, Collections Management and Forecasting, and states subcontractors have billed over $14B across 250k+ projects. Its pricing page publishes no prices.
Read 2026-09-04
- Trimble Pay (formerly Flashtract) - Pricing
Flashtract is now Trimble Pay, part of Trimble Construction One, offering payment, compliance and lien waiver technology for subcontractor payments. No price is published on the pricing page.
Read 2026-09-04
- Procore - Plans and Pricing
Procore's pricing page is headed "Plans and Pricing [Estimate]" and offers unlimited users with a requested estimate rather than a published list price.
Read 2026-09-04
- FAR 52.232-27(a)
On a federal construction contract, a progress payment is due 14 days after the designated billing office receives a proper payment request; an improper invoice must be returned within 7 days with reasons.
Read 2026-09-04