APIs · head to head
Astra vs Unit
Astra
APIs
Instant payments API for push-to-card, card-to-account and FedNow transfers
- From
- On request
- Rated
- -
Unit
APIs
Banking as a service platform for embedding deposit accounts, cards and payments, with a sponsor bank behind it
- From
- On request
- Rated
- -
The short version
- Each has a real cost: Astra push-to-card costs materially more per transaction than ACH, so a platform that switches all payouts to instant sees payment costs rise sharply, and the usual answer of charging the recipient for speed only works where recipients will pay.; Unit your product depends on a sponsor bank you do not contract with directly, and 2024 showed what that means: Thread Bank received an FDIC enforcement action naming its banking as a service programmes and Blue Ridge Bank went under an OCC consent order and offboarded fintech partners.
- They diverge on capability: Astra covers Instant disbursements, Unit covers Deposit accounts.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Astra and Unit actually diverge.
Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated), category (APIs).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Astra
- Instant disbursements
- Card to account
- Net debit mode
- FedNow and RTP transfers
- ACH transfers
- Routing logic
- SDK
Only in Unit
- Deposit accounts
- Card issuing
- Payments
- White label components
- Compliance operations
- Lending
- Programme reporting
Both cover
- Sandbox
What people use each for
The jobs each tool is most often brought in to do.
Astra
- A gig or marketplace platform paying workers to their debit cards at the end of a shift rather than on a weekly ACH cyclenot Unit
- An insurer settling small claims instantly to a claimant debit card to remove the cheque processnot Unit
- A lending product disbursing approved funds in seconds so the borrower experience matches the approval decisionnot Unit
- A consumer fintech letting users fund a new account from an existing debit card so the balance is usable immediatelynot Unit
Unit
- A vertical SaaS platform for contractors that wants to hold customer funds and issue expense cards without pursuing a charternot Astra
- A payroll or benefits platform embedding accounts so employees can be paid ahead of schedulenot Astra
- A marketplace that wants seller balances to sit in real accounts under its own brand rather than as ledger entries at a processornot Astra
- A company that needs interchange revenue from a card programme to make the unit economics of its core product worknot Astra
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Astra
- Push-to-card costs materially more per transaction than ACH, so a platform that switches all payouts to instant sees payment costs rise sharply, and the usual answer of charging the recipient for speed only works where recipients will pay.
- Original Credit Transaction support is not universal across card issuers, so a proportion of payouts fall back to slower rails and you must build and explain a two speed experience rather than promising instant to everyone.
- The programme depends on Cross River Bank as sponsor, a bank with concentrated fintech exposure and a documented regulatory history, so a single supervisory action on that institution is a direct operational risk to your payouts.
- Nothing is published on pricing, and per transaction economics vary by rail and volume, so small platforms cannot estimate cost before a sales conversation and have limited leverage in it.
- FedNow reach still depends on the recipient bank participating, so instant account-to-account is not available to every recipient and the routing logic has to degrade gracefully, which is more integration work than the single API framing suggests.
Unit
- Your product depends on a sponsor bank you do not contract with directly, and 2024 showed what that means: Thread Bank received an FDIC enforcement action naming its banking as a service programmes and Blue Ridge Bank went under an OCC consent order and offboarded fintech partners.
- Programme approval by the bank is a separate gate from signing with Unit, and it can add months and impose product restrictions that were not visible during the commercial conversation.
- Compliance obligations are shared but the operational load lands on you, and platforms consistently underestimate the staffing needed for disputes, escalations and the bank ongoing oversight requests.
- Pricing is unpublished and blends platform fees, per-account and per-transaction charges and interchange sharing, which makes it hard to model unit economics before you have volume and easy to be surprised by the minimum.
- Migrating a live deposit programme to a different provider or bank is extremely disruptive because it involves moving customer accounts and card credentials, so switching costs are far higher than for ordinary software.
Pricing, plan by plan
Astra
On request- Astra Payments$undefined/year
- Per transaction pricing quoted by volume and rail
- Push-to-card economics differ materially from ACH
- Net debit mode available in place of prefunding
Unit
On request- Unit Banking as a Service$undefined/year
- Platform fee plus per-account and per-transaction charges, quoted
- Interchange sharing arrangements negotiated per programme
- Minimum commitment typical
Which should you pick?
Choose Astra if
- You need instant disbursements.
- You work on API, Web, iOS, Android.
- You also want card to account.
Choose Unit if
- You need deposit accounts.
- You work on Web, iOS, Android.
- You also want card issuing.
Questions people ask
- Is Astra or Unit better?
- Neither clearly leads. Astra starts at On request and Unit at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Astra or Unit?
- Astra starts at On request and Unit at On request.
- Does Astra or Unit run on more platforms?
- Astra runs on API, Web, iOS, Android. Unit runs on Web, iOS, Android.
- What is Astra best used for?
- Astra is most often used for a gig or marketplace platform paying workers to their debit cards at the end of a shift rather than on a weekly ach cycle, an insurer settling small claims instantly to a claimant debit card to remove the cheque process, a lending product disbursing approved funds in seconds so the borrower experience matches the approval decision, a consumer fintech letting users fund a new account from an existing debit card so the balance is usable immediately. Of those, a gig or marketplace platform paying workers to their debit cards at the end of a shift rather than on a weekly ach cycle and an insurer settling small claims instantly to a claimant debit card to remove the cheque process are not what Unit is typically brought in for.
- What can Astra do that Unit cannot?
- Astra covers Instant disbursements, Card to account, Net debit mode, FedNow and RTP transfers. Unit covers Deposit accounts, Card issuing, Payments, White label components. Both handle Sandbox.
Answered from the vendors’ own pages
Astra: Who is the sponsor bank?
Cross River Bank. All banking and payment services run through that relationship, so the bank should be part of your diligence rather than an implementation detail.
Unit: Who actually holds the money?
A chartered partner bank, not Unit. Deposits sit at the sponsor bank and FDIC insurance flows from that bank, so its condition is your condition.
Astra: Do I have to prefund payouts?
Not necessarily. Astra offers a net debit arrangement where disbursements settle against a reserve rather than a permanently funded float account, which is the main working capital argument for the product.
Unit: What happened with Unit sponsor banks in 2024?
Thread Bank received an FDIC enforcement action that explicitly named its banking as a service and lending as a service programmes, and Blue Ridge Bank was under an OCC consent order from January 2024 and offboarded fintech partners. Blue Ridge exited the order in late 2025.
Astra: Is every payout instant?
No. Push-to-card requires the recipient card issuer to support Original Credit Transactions, and FedNow requires the recipient bank to participate. The rest fall back to ACH.
Unit: What does Unit cost?
Not published. Expect a platform fee, per-account and per-transaction charges, an interchange share and a minimum commitment.
Astra: What does it cost?
Nothing is published. Pricing is per transaction and varies by rail and volume, and card rails cost considerably more than ACH.
Unit: Do we need our own compliance team?
Yes. Unit supplies tooling and the bank sets the rules, but disputes, escalations and evidence for bank oversight require named people on your side.
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