Features, use cases, pros and cons, and pricing side by side — and which one to pick.
Best for: Agencies and studios managing several client accounts that want one portal for briefs, deliverables, approvals, and invoices., Consultants, coaches, and freelancers who need contracts, intake forms, file exchange, and payment collection in a single onboarding flow.
Read the full Assembly reviewBest for: US construction firms that need to pay subcontractors and collect from clients without per-transfer fees, Wholesale distributors processing high volumes of customer ACH and card payments
Read the full Nickel reviewCommission may apply at no extra cost
Compare key features side by side
Feature Comparison Summary
Assembly bundles client messaging, payments, contracts, forms, files, and a help desk into one portal, which cuts subscription sprawl for service businesses. It's easy to try thanks to a free plan, but depth in each area may trail dedicated tools, and independent reviews are scarce. Overall, it's worth piloting with one client before committing.
Nickel gives US construction, wholesale, manufacturing, and logistics businesses a free Core plan with unlimited ACH transfers, bill pay, and card acceptance, plus paid tiers that unlock advanced workflows. Independent reviews are thin, and top-end pricing isn't publicly broken out. Overall, it's a low-risk pick for domestic businesses that want free basic payments with room to grow.
Assembly is an all-in-one client portal for service businesses such as agencies, consultancies, and professional service firms. The platform consolidates the day-to-day tools a service business uses with clients — client records, communication, payments, file sharing, contracts, forms, and help desk tickets — behind one login. Instead of stitching together separate apps for each function, teams give clients a single destination where requests, documents, and billing all live.
Nickel is an accounts receivable and business payments platform for US companies. It combines sending and receiving payments, vendor bill pay, and card payment acceptance in one place, with unlimited ACH transfers included on the free Core tier. The product splits into that free Core plan and paid plans that unlock advanced workflows tailored to industries like construction, wholesale, manufacturing, and logistics.
List prices from each vendor's pricing page, before taxes and add-ons. Costs are per month.
| Pricing compared | Assembly | Nickel |
|---|---|---|
| From (cheapest paid plan) | $2/mo Starter | $35/mo Nickel Plus |
| Free plan | Yes | Yes Best for small teams; 3 active users, $25,000 transaction limit, 2% APY on Nickel Balance, free expedited ACH |
| Free trial | Not stated | Not stated |
| Money-back guarantee | Not stated | Not stated |
| Annual billing savings | — | — |
| Pricing model | Flat price | Flat price |
| Cost for 1 user | Free Free plan, billed annually | Free Nickel Core plan, billed annually |
| Cost for 5 users | $2/mo Starter plan, billed monthly · price per account (user limit not stated) | $35/mo Nickel Plus plan, billed monthly |
| Cost for 10 users | $2/mo Starter plan, billed monthly · price per account (user limit not stated) | $35/mo Nickel Plus plan, billed monthly |
| Cost for 25 users | $2/mo Starter plan, billed monthly · price per account (user limit not stated) | $35/mo Nickel Plus plan, billed monthly |
| Plans | 4 | 4 |
| Prices checked | Checked Oct 30, 2026 | Checked Oct 30, 2026 |
| Price history | Tracking prices since Oct 1, 2026. No price change detected yet. | Tracking prices since Oct 1, 2026. No price change detected yet. |
For 1 user (billed annually), Assembly and Nickel both cost $0/mo.
Computed from published list prices on the dates shown. Excludes taxes, add-ons and promotions.