Subcontractor Scheduling Software: 3 Steps to Pick in 2027

Short answer: pick by who has to log in

Subcontractor scheduling software is a shared calendar that puts each trade's start dates, task owners and confirmations in one place, and the tool you need depends mainly on whether your subs must log in to see or confirm those dates themselves. TL;DR: shortlist JobTread if you want free vendor portal access and a published base price, Procore if you run large multi-project work and can accept a quote, and Knowify if you will pay for a seat for each sub. Workyard is built around your own crews, Fieldwire bills per user so sub seats become a cost decision, and Onetrace presents itself as software for subcontractors, so check it if you are the sub rather than the general contractor. Buildertrend's price could not be confirmed from its own pages during this research, so treat it as a quote-and-demo option. If general project scheduling is your real problem rather than sub coordination, start with our best project scheduling software for construction guide instead.

Key Takeaways

• Sub access drives the cost. JobTread's vendor and subcontractor portal users are free, Knowify requires subs to be paid users, and Fieldwire bills per user.

• JobTread, Knowify, Workyard and Fieldwire publish list prices on their own pages. Procore and Onetrace are quote-based, and I could not confirm a current Buildertrend figure.

• Knowify's pages disagree on subcontractor management. Its subcontractor page advertises it "starting at $99/month," while its pricing page marks it unavailable on the Core tier.

• None of the vendor pages I opened says a subcontractor can confirm a schedule change inside the tool. Test that step in a trial before you buy.

• A workflow built in Zapier, Make or n8n can cover the same steps as the proposed design below, but you own retries, duplicate-send protection and access rules.

How we evaluated these tools

This guide comes from US Tech Automations, which builds workflow automation, so the workflow sections describe a proposed design rather than a measured result or a current customer deployment. Prices and feature claims come from each vendor's own pages. Context comes from a trade publication, a research report from a scheduling software company, and two reviews written by companies that sell competing software, and we weighted those sources accordingly.

The weights below are our judgment, not a published ranking. Sub access sits at the top because a per-seat charge for every sub changes the cost of the whole job, and a schedule that subs cannot read does not change anything on site.

We opened each vendor's pricing page and, where one existed, a page about subcontractors. Procore, JobTread, Knowify, Fieldwire, Onetrace and Workyard returned usable pages. Buildertrend's pricing and feature pages returned an access error, and the review sites we tried for Knowify and Fieldwire also blocked us, so the rows for those tools say only what we could confirm elsewhere.

Feature matrix for subcontractor scheduling

A "Not stated" cell means the vendor's page did not say, not that the feature is missing. The last column matters most, because it lists what to ask in a demo before you sign.

Pricing: what each vendor publishes

Pricing checked October 18, 2026.

On JobTread, the monthly plan has a $199 base, and each internal user from two through ten adds $20 per month, according to JobTread. The same page says the annual subscription saves 20%, that there is no free trial, and that customer and vendor portal users are unlimited and free.

Knowify's pricing page lists Core at $99 per month and $149 per month, and Advanced at $329 and $399 per month, without saying which figure is the annual rate. The page says Core includes one user, Advanced includes ten, and each extra user costs $29 per month, according to Knowify. The Enterprise tier is quote-based.

Workyard's pricing page says plans start at $6 per user per month, billed annually, and it names Starter, Pro and Autopilot without a separate figure for each, according to Workyard. Its Starter plan omits scheduling, and its Pro plan adds office-to-field scheduling.

Fieldwire lists the Pro tier at $39 per user per month, Business at $64 and Business Plus at $89, each billed annually. Its Basic tier costs nothing and is limited to five users, three projects and 100 sheets, according to Fieldwire. The same page marks API access as "Contact us" on every tier.

Procore's pricing page gives no dollar amounts and asks for a custom quote, with an annual fee set by product and Annual Construction Volume, according to Procore. Onetrace lists three products, Traceability, Workforce and All in one, with no prices, and its only pricing actions are a demo request and a sales call, according to Onetrace.

I could not open Buildertrend's pricing page during this research, so this article prints no Buildertrend figure. A 2026 analysis by Projul, which sells a competing product, reports that Buildertrend's three published tiers are gone and that no 2026 dollar amounts are published. Ask Buildertrend for a written quote that names sub seats before you assume any cost.

The table applies the published rates to two illustrative headcounts: six internal users, and the same six plus twelve subcontractors. These are arithmetic examples, not a customer.

Procore and Onetrace are quote-based on their own pages, and Buildertrend's figure is not confirmed, so none of them appears in the table. Any number for those three would be a guess.

Who should choose each tool

When NOT to use US Tech Automations: a configured workflow is the wrong purchase if one shared calendar that every sub already reads covers your jobs, if one person can message each sub directly without missing anyone, or if your scheduling tool gives no API access and you cannot export changes by hand. In those cases, Fieldwire's free Basic tier, JobTread's free portal users or a plain shared calendar will cost less to run, and Workyard is the simpler buy if your only scheduled people are employees.

Vendor profiles

Procore

Best fit: general contractors running large, multi-project portfolios who want scheduling next to project management. Procore's support guide says its scheduling tool became available to all regions on February 17, 2026, and that it is built for general contractors, subcontractors and owners, according to Procore (2026).

Limitations: pricing is an annual fee by product tied to Annual Construction Volume, so the bill tracks your volume rather than your user count. A competing reviewer, ProjectManager (July 2026), rates Procore's scheduling "Very Good" but says complex CPM work may still belong in Primavera P6, and it calls the pricing "Expensive." The Procore videos on subcontractors viewing schedules are marked as possibly outdated, so ask for a live demo of the sub view.

Implementation: Procore's schedule user guide says existing schedules can be imported from Microsoft Project, Primavera P6 and the MPX format. Run one job first and check what a subcontractor actually sees.

JobTread

Best fit: small and mid-size builders who want estimating, scheduling and purchase orders in one system. Its pricing page says all vendor, subcontractor and customer users can reach an external portal, and its vendor and subcontractor page says bids convert into purchase orders and work orders with one click, which subs can accept with an eSignature.

Limitations: the portal links are tied to the email address that sent the document, and neither page says subs can confirm a schedule change. The pricing page also says some field crew can be added free to view their schedule or check off tasks, which helps if your crews are employees.

Implementation: pilot one job. Load its task list, send one vendor link, and check what the sub sees and whether a reply is captured anywhere.

Knowify

Best fit: subcontracting firms that want employees, equipment and subs on one drag-and-drop schedule, which its pricing page describes directly.

Limitations: its subcontractor page advertises management "starting at $99/month," but it also says subs "need to be added as paid users" and cannot have guest access, according to Knowify. Its pricing page marks subcontractor management as "No" on Core and "Yes" on Advanced and Enterprise, so the $99 figure may not match the tier you need. The only portal the subcontractor page mentions is for clients.

Implementation: put every sub on the quote as a paid user, and ask for the subcontractor-facing schedule view in writing before you sign.

Fieldwire

Best fit: field teams that already run tasks, plans and checklists in one app and want an API to connect other systems. Its developer docs describe webhook subscriptions that filter events, as shown in the webhook filter docs.

Limitations: the Basic tier is capped at five users, three projects and 100 sheets, API access is "Contact us" on every tier, and the pricing page does not say whether subcontractors count as users.

Implementation: if you plan a workflow, ask for API access in writing before you design it. The docs say that leaving entity_filters blank sends every event to the subscription, so set a filter from the first day.

Onetrace

Best fit: subcontractors who run their own crews, visits and signed documents. Its pricing page lists Timesheets, Geofencing, Planner, Day view and Signed docs on the Workforce plan.

Limitations: no prices are published, and the plan list marks one feature "Coming soon" without naming it. Its pages also do not explain how a general contractor would see the schedule.

Implementation: ask which feature is "Coming soon," and ask how Planner records changes that come from the general contractor's side.

Workyard

Best fit: crews of your own employees who need time tracking and scheduling in the field. Its pricing page describes a plan for the field workforce rather than a subcontractor portal.

Limitations: the Starter plan omits scheduling, and the pricing page names no subcontractor features. Confirm whether you need subs on the schedule at all. If your scheduling is really routed trips or dispatch, our dispatch scheduling guide covers that problem.

Buildertrend

Best fit: builders who can get a written quote with sub seat rules included.

Limitations: I could not open Buildertrend's pricing or feature pages during this research, so its subcontractor portal, seat rules and scheduling depth are unverified here. The Projul analysis linked above is the only pricing source I could read, and it is from a competitor.

Implementation: before a demo, ask for written sub seat rules and a sandbox view of the subcontractor schedule.

Where schedule changes break

Schedules go stale when a trade moves and the sub hears about it late. That is this guide's own judgment, not a measured finding, and it means the process has to cover the update step as well as the tool.

A proposed US Tech Automations workflow for the change problem starts when a trade task is updated in the scheduling tool. On Fieldwire, that trigger would be a webhook subscription whose entity_filters list includes Task.Updated for moved trades, delivered to a callback URL you host. The action matches the task to the subcontractor on it, pulls that sub's contact from your roster, and drafts a notice with the old and new dates. The output is a queued draft and a log row that records who approved it, not a sent message. A human reviews every notice before it leaves, and the superintendent can stop any draft. Prerequisites are API access, a roster with one named contact per sub, and a rule for any task that matches no sub. This is a configurable design, not a live deployment.

A second proposed workflow handles confirmation. The trigger is a schedule notice that has no reply after a window you set, and that window is your rule, not the vendor's. The action creates a follow-up task for the superintendent and drafts a reminder to the sub. The output is a morning list of unconfirmed trades. The call decision stays with a person, so the system never reschedules a trade on its own. The workflow works only if replies land somewhere the system can read. JobTread's emailed portal links are one route, but its pages do not say confirmations are captured, so test that in a trial before you design around it.

A worked cost example

Take an illustrative office with six internal users and twelve subcontractors on the same jobs. On JobTread, the monthly plan's $199 base includes the first user, and five more users at $20 each add $100, so the six internal users cost $299 per month, or $3,588 a year, according to JobTread. The twelve subs add nothing if portal access stays free. On Fieldwire, the highest listed tier is $89 per user, and if all 18 people count as paid users, the bill is 18 × $89 = $1,602 per month, or $19,224 a year, per the Fieldwire pricing page. That gap is why the sub-counting question decides the budget. If the same office wants the schedule to drive notices, the Fieldwire docs show a webhook subscription whose entity_filters can be set to Task.Updated, but API access is "Contact us" on every tier, so get that in writing before you design the flow.

Who this is for

Who this is for: a contractor or operations lead who coordinates several subcontractors on the same jobs and needs them to see or confirm dates.

Red flags: your only scheduled people are your own employees, subs never touch the schedule, or nobody will own the tool after the trial ends.

If you are a property manager who books your own vendors, the same confirmation problem applies, and our scheduling software for property managers guide covers that case.

Build it yourself or configure a workflow?

Zapier, Make and n8n can run the same trigger-and-draft pattern described above. When they are configured, they can keep run histories, retries and error branches, and their audit evidence depends on how you set them up. You still design and own duplicate-send protection, escalation paths, access controls and maintenance when a scheduling API changes. The proposed US Tech Automations design would configure the approval queue, the log and the escalation rules up front, with the same prerequisites and review points. The buyer still keeps the roster current and owns the API credentials.

Glossary

• Subcontractor (sub): a trade company you hire for part of a job, separate from your own employees.

• Portal user: a person outside your company who logs in through a link or account to see project documents or schedule items.

• Paid seat: a billed user license, which many vendors count per person.

• Lookahead schedule: a short-range plan of near-term work, which Procore describes as a granular view next to the high-level schedule.

• Webhook: a message the scheduling tool sends to a URL you control when an event happens.

• Entity filter: a list that limits which events trigger a webhook, such as Task.Updated.

• Confirmation: a sub's written or tapped acknowledgment that it has the dates.

Three steps to pick

1. Count who must log in. List every sub who must see or confirm dates. For each vendor, confirm whether subs count as paid users. Knowify says they must be, and the Fieldwire pricing page does not define it.

2. Test one change end to end. Move one trade's date in a trial, then confirm the sub saw the change and replied. If the confirmation needs a phone call, mark the step as failed for that tool.

3. Price at your headcount. Use the cost table above, add your internal users and sub seats, and get a written quote from any quote-based vendor before you compare totals.

Questions buyers ask

Do subcontractors need a paid seat in these tools?

On Knowify, yes: its subcontractor page says subs must be added as paid users, so budget a seat for each one. On JobTread, vendor and subcontractor portal users are free, and on Fieldwire, billing is per user, so ask whether subs count.

Can a subcontractor confirm a schedule change inside these tools?

No vendor page I opened says so. JobTread's pages do not mention schedule confirmation, and Procore's guidance on subs viewing schedules is in videos its own support site marks as possibly outdated, so run the confirmation test before you buy.

Is there a free option?

Yes, with limits: Fieldwire's Basic tier costs nothing and caps you at 5 users, 3 projects and 100 sheets.

Which tools publish prices?

JobTread, Knowify, Workyard and Fieldwire publish list prices. Procore and Onetrace are quote-based, and I could not confirm a current Buildertrend figure.

Should I build this in Zapier, Make or n8n?

Build it only if someone in your company will own retries, duplicate-send protection and access control. Without that owner, a sub-facing tool with its own portal is the simpler choice.

Is Procore too big for a small contractor?

ProjectManager's review says Procore is "best suited for medium and large contractors" because of its premium pricing model. Ask for a quote that shows your costs at your volume before deciding.

Where to go next

Start with sub access, then test one schedule change before you compare totals. If a workflow is part of the plan, see how the configuration works and bring the API and seat questions above to each vendor before you commit.