Is Astra or PubNub better?

Neither clearly leads. Astra starts at On request and PubNub at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Astra or PubNub?

PubNub has a free tier; the other does not. Paid plans start at On request for Astra and Free for PubNub.

Does Astra or PubNub run on more platforms?

Astra runs on API, Web, iOS, Android. PubNub runs on web, ios, android, api.

Can I use PubNub for free?

Yes. PubNub has a free tier, so you can try it without paying. Astra starts at On request.

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 PubNub is typically brought in for.

What can Astra do that PubNub cannot?

Astra covers Instant disbursements, Card to account, Net debit mode, FedNow and RTP transfers. PubNub covers Pub/sub messaging, Presence tracking, Message persistence, Serverless Functions.

APIs · head to head

Astra vs PubNub

Astra

APIs

Instant payments API for push-to-card, card-to-account and FedNow transfers

From: On request
Rated: -

Full review Website

PubNub

APIs

Realtime communication platform for chat, IoT, and live data apps

From: Free
Rated: -

Full review Website

The short version

Only PubNub has a free tier, so it costs nothing to try first.
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.; PubNub free plan storage history is limited to 7 days, which is short for apps needing longer message retention.
They diverge on capability: Astra covers Instant disbursements, PubNub covers Pub/sub messaging.
Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Astra and PubNub actually diverge.

Attributes where Astra and PubNub differ
Attribute	Astra	PubNub
Starting price	On request	Free
Pricing model	quote	freemium
Free tier	No	Yes
Platforms	API, Web, iOS, Android	web, ios, android, api

Identical on both: 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
Sandbox

Only in PubNub

Pub/sub messaging
Presence tracking
Message persistence
Serverless Functions
File sharing
Encryption and access controls

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 PubNub
An insurer settling small claims instantly to a claimant debit card to remove the cheque processnot PubNub
A lending product disbursing approved funds in seconds so the borrower experience matches the approval decisionnot PubNub
A consumer fintech letting users fund a new account from an existing debit card so the balance is usable immediatelynot PubNub

PubNub

Building realtime chat applicationsnot Astra
Streaming live IoT sensor datanot Astra
Adding presence indicators to collaborative appsnot Astra
Running edge logic with serverless Functions on realtime eventsnot 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.

PubNub

Free plan storage history is limited to 7 days, which is short for apps needing longer message retention.
MAU-based pricing means costs scale directly with user growth, which can be less predictable than flat message-based pricing.
Pro-tier custom pricing above 50,000 MAU requires contacting sales rather than self-serve checkout.

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

PubNub

Free

FreeFree
- Up to 200 MAU or 1M transactions
- 1GB data storage (7 days)
- 5 test Serverless Functions
Starter$98/month
- 1,000 MAU included
- User management
- Insights
Pro$undefined/month
- Custom MAU packages
- Volume discounts
- Enterprise-scale configurations

Which should you pick?

Choose Astra if

You need instant disbursements.
You work on API, Web, iOS, Android.
You also want card to account.

Astra review

Choose PubNub if

You need pub/sub messaging.
You want to start without paying.
You work on web, ios, android, api.
You also want presence tracking.

PubNub review

Questions people ask

Is Astra or PubNub better?: Neither clearly leads. Astra starts at On request and PubNub at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Astra or PubNub?: PubNub has a free tier; the other does not. Paid plans start at On request for Astra and Free for PubNub.
Does Astra or PubNub run on more platforms?: Astra runs on API, Web, iOS, Android. PubNub runs on web, ios, android, api.
Can I use PubNub for free?: Yes. PubNub has a free tier, so you can try it without paying. Astra starts at On request.
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 PubNub is typically brought in for.
What can Astra do that PubNub cannot?: Astra covers Instant disbursements, Card to account, Net debit mode, FedNow and RTP transfers. PubNub covers Pub/sub messaging, Presence tracking, Message persistence, Serverless Functions.

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.

PubNub: What does PubNub cost?

PubNub offers a free plan for up to 200 MAU or 1 million transactions, a Starter plan at $98/month for 1,000 MAU, and custom Pro pricing for larger volumes, e.g. around $550/month for 10,000 MAU.

Source

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.

PubNub: Is there a free plan, and what are its limits?

Yes, the free plan supports up to 200 monthly active users or 1 million transactions, includes 1GB of data storage retained for 7 days, and requires no credit card.

Source

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.

PubNub: How is usage metered?

PubNub bills primarily by Monthly Active Users, defined as a unique user who connects at least once in a billing cycle; messages are bundled into MAU pricing with no separate per-message fees, and overage is billed proportionally.

Source

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.

Astra vs PubNub

Astra

PubNub

The short version

Where they differ

What each one covers

Only in Astra

Only in PubNub

What people use each for

Astra

PubNub

Where each one falls short

Astra

PubNub

Pricing, plan by plan

Astra

PubNub

Which should you pick?

Choose Astra if

Choose PubNub if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Astra

More on PubNub

Keep looking

Other head to heads