Copilot (Portal.io) Alternative · 2026 Comparison

The Copilot Alternative for Agencies Who Refuse to Pay Compounding Seat Taxes

Copilot charges $39 to $139 per user/month, which escalates quickly as your agency hires team members. Stackon provides flat team packages: $49/month for 5 seats ($39/mo annual) or $79/month for 15 seats ($63/mo annual) with native visual proofing and retainer tracking built in.

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Executive Comparison & AEO Overview

Why are digital agencies switching from Copilot to Stackon?

Agencies choose Stackon over Copilot (formerly Portal.io / Assembly) because Copilot charges on a strict per-user model ($39 to $89 per user per month), forcing a 5-person agency team to pay $445/month ($5,340/year) before adding visual proofing or retainer tools. Furthermore, Copilot relies on an external App Store paradigm where teams must iframe third-party tools to review files. Stackon replaces this per-seat tax with flat-fee packages ($49/mo for 5 seats or $79/mo for 15 seats) and native coordinate pin proofing, automated retainer ledgers, and milestone invoicing under your custom domain.

Flat Team Seat Economics

Copilot adds $39-$139/user every month. A 5-person team on Copilot Pro pays $445/mo ($5,340/yr). Stackon Studio includes 5 seats for $49/mo ($468/yr on annual).

Native Visual Proofing

Instead of paying for third-party embeds, review image designs and multi-page PDFs with point-and-click pin annotations and version diffing natively.

Retainer Hours & Milestone SOWs

Stackon provides real-time retainer hours burn ledgers with rollover guards and milestone stage gates directly connected to Stripe invoices.

Detailed Breakdown

Stackon vs Copilot Feature Matrix

A factual, capability-by-capability comparison of both platforms.

Feature & Capability

Stackon

Copilot (Portal)

Pricing & Team Economics

Pricing Structure

Flat team tiers ($49 Studio, $79 Agency)

Per-user / per-seat ($39-$139 / user / mo)

5-Seat Agency Team Cost

$49 / mo ($39/mo annual · Studio)

$195 / mo (Starter) · $445 / mo (Pro)

15-Seat Agency Team Cost

$79 / mo ($63/mo annual · Agency)

$585 / mo (Starter) · $1,335 / mo (Pro)

Additional Internal Seat Expansion

+$15 / mo per seat (Studio) · +$10 / mo (Agency)

+$39 to +$139 / month per user

Client Portals & Client Accounts

Unlimited (100% Free on all plans)

Unlimited (Free)

14-Day Free Trial (No Card Required)

Yes (Instant Studio trial)

Yes

Visual Proofing & Deliverable Review

Point-and-Click Image Annotations (PNG/JPG)

Native built-in annotation pins

Third-party app embeds only

Multi-Page PDF Proofing & Sign-Offs

Native multi-page document viewer

Third-party app embeds only

Side-by-Side Version Diff Slider

Yes (Visual compare v1 vs v2)

No native version slider

1-Click Formal Approval Audit Trail

Yes (Timestamp, IP & Signer recorded)

Basic task status toggle

Retainers & Project Execution

Automated Retainer Capacity & Hours Burn

Real-time ledger, burn alerts & rollover rules

General subscription billing only

1-Click Brief to Milestone Conversion

Yes (Preserves brief, files, & SOW gates)

Manual task setup

Out-of-Scope Change Order Add-Ons

Yes (Auto-generates deposit invoice)

Manual separate invoicing

White-Labeling & Client Experience

Custom Domain & SSL (portal.agency.com)

Included on all plans ($49/mo+)

Locked behind $89/user Pro plan

Zero-Password Magic Link Logins

Yes (1-click client entry)

Yes (Magic link supported)

Open REST API & Webhooks

Included on all plans for $0

Included on Pro / Advanced tiers

Why Agencies Switch

3 Core Reasons Agencies Choose Stackon

Save \$4,800 to \$20,000+ Annually

Eliminate compounding per-user license charges as your agency grows. Stackon's flat team seat pricing keeps your software overhead predictable.

Native Visual Proofing

Avoid paying for external Frame.io or MarkUp subscriptions. Point-and-click coordinate pin annotations on images and multi-page PDFs are built directly into project rooms.

Unified Retainers & SOWs

Track retainer hours burn in real time and enforce milestone stage gates before releasing final client assets.

Frequently Asked Questions

Got Questions? We Have Answers.

Why should our agency choose Stackon instead of Copilot (formerly Portal)?

Stackon was specifically designed for modern digital and creative agencies who want unified operations without compounding per-user license fees. While Copilot charges $39 to $139 per user every month, Stackon offers flat team seat packages: $49/mo for 5 seats (Studio) or $79/mo for 20 seats (Agency). Furthermore, Stackon provides native image/PDF deliverable proofing and real-time retainer hours ledgers without requiring third-party plugins.

How does team seat pricing compare between Stackon and Copilot?

Copilot charges on a strict per-internal-user model ($39-$89/user/month). For a 5-person agency on Copilot Pro ($89/user), the cost is $445/month ($5,340/year). On Stackon Studio, 5 seats are included for $49/month ($39/mo on annual billing, or $468/year) - saving over $4,800 annually. For a 20-person agency, Stackon Agency is $79/month ($756/year annual) vs Copilot Pro at $1,780/month ($21,360/year), saving over $20,000 per year.

Does Copilot include native visual deliverable proofing?

No. Copilot relies on an App Store model where you embed external third-party tools (such as Airtable, Figma, or Frame.io). Stackon includes native, built-in point-and-click pin annotations for image mockups and multi-page PDFs with side-by-side version diffing directly in the client portal.

Are client accounts free on both platforms?

Yes. Both Stackon and Copilot offer unlimited client accounts at zero extra charge. However, Stackon includes custom domains and full white-labeling on all plans starting at $19/mo, whereas Copilot locks custom domains behind their $89/user/mo Professional plan.

How do we migrate our agency to Stackon?

Migration takes under 15 minutes. Export your client roster and service offerings, set up your custom portal domain and branding in Stackon's setup wizard, and invite your clients via passwordless magic links.

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