Both are banking-plus-bill-pay platforms, not dedicated AP software: FDIC-backed accounts (Aspire FDIC insurance via Column N.A., up to $100M), yield on idle cash (Aspire up to 3.67% yield; Nickel 2% on the Nickel Balance), and bill-pay built into the account itself rather than sold as a separate module. That makes this a different buyer question than a dedicated AP tool comparison: it is which account to open, not which software to bolt onto an existing bank.
The one difference that decides it
Aspire is built for cross-border money movement. It runs on US surface, single tier, no plan ladder; fees are per-transaction, not per-seat, holds 13 currencies, and charges From 0.22% on foreign exchange and From 0.15% on treasury moves rather than a monthly seat or tier fee. Aspire's own words: The finance stack for global founders. The fee structure backs that up. Nickel is built for the US domestic bill-pay and get-paid workflow, priced on flat per account, not per user: $0 / month, $35 / month, or $300 / month, with each tier raising both the transaction ceiling ($25,000 transaction limit on Core, $1M transaction limit on Plus) and the active-user count (3 active users on Core, Unlimited users on Plus). A business that never touches a foreign currency will not use most of what Aspire's US surface is built around. A business that regularly pays or invoices overseas will not find that multi-currency capability inside Nickel at all.
What each account actually charges for
| Account | Base price | What it adds | Best if |
|---|---|---|---|
| Aspire (US) | $0/month | 1.5% uncapped cashback on card spend, Free local transfers, FX From 0.22% | You pay or get paid across borders |
| Nickel Core | $0 / month | $0 standard ACH, $25,000 transaction limit | You want a free US-only starting point |
| Nickel Plus | $35 / month | $1M transaction limit, Unlimited users | You have outgrown Core's ceiling or seat count |
Neither platform is a per-user AP tool in the way BILL's per-seat pricing is; both price at the account level, which is the point of putting a bank account and a bill-pay tool in one place. Nickel does add a card-based fee that Aspire's US surface handles differently: card acceptance runs 2.9% on Nickel, versus Aspire's cashback-and-FX model rather than a flat card-receive charge. Read the full pricing detail on the Aspire business account review and the Nickel pricing review before opening either account.
Still undecided?
Ask whether any material share of the business's payables or receivables cross a border. If yes, even occasionally, Aspire's 13 currencies and per-transaction FX pricing beat trying to force international payments through a US-only flat-fee account. If no, and the real question is which tier to buy while adding people and transaction volume, Nickel's ladder from $0 / month to $35 / month to $300 / month gives a predictable path with more seats and a higher ceiling at each step, something a single flat-tier account cannot offer. One Nickel customer, BACA Systems, reports BACA Systems saves $200K and 1,200 hours a year with Nickel, which is one company's result, not a promise of what any other business will see. For the full buyer question this comparison sits inside, see the accounts payable automation guide.
See current Aspire business account details See current Nickel plans and pricing