Pay for Sync (sync.so) | Mehbit virtual card

What is this service?

Sync (sync.so) is an AI lipsync and visual dubbing platform. You give it a video and an audio track, and its models redraw the speaker’s mouth so the lips match the new audio — in a different language, a different take, or a cloned voice.

Localisation teams use it to dub marketing videos without reshooting, creators use it to re-voice footage, and developers call the same models through an API. Billing is a monthly plan plus per-second usage, so the plan sets your limits and the generations set your bill.

Sync bills international cards only, which is where Iranian and other sanctioned-region users get stuck. A Mehbit virtual card solves that.

Sync came out of Y Combinator and has become one of the better-known names in AI lipsync. Its selling point is that the mouth movement holds up at close range, which is what separates usable dubbing from the uncanny results most tools produce.

Pricing has two moving parts. The plan — Hobbyist at $5, Creator at $19, Growth at $49, Scale at $249 — sets your maximum video length, concurrent jobs, and voice clones. On top of that you pay per second of generated video, starting at $0.05 and dropping as the tier rises. Enterprise is quoted separately.

Sync takes card payments through a standard international payment processor under the legal name Synchronicity Labs Inc, which is the descriptor that appears on your statement. It does not accept cryptocurrency at checkout, and it does not support local Iranian payment rails at all.

This is where Mehbit fits in. You issue a Mehbit virtual Visa or Mastercard, fund it with USDT, and add it in Sync’s billing settings. The plan then renews on its own and usage charges land on the same card.

This is confirmed, not theoretical: Sync accepted a Mehbit virtual card for two settled charges in June 2026, and later attempts fell short only on the card’s available balance — never on the card itself.

Accepted card types

Virtual Visa
Virtual Mastercard
Prepaid
Debit
Credit card
Crypto (direct)

Sync runs cards through a standard international processor, so a reloadable virtual Visa or Mastercard with 3-D Secure works like a normal international card; single-use gift-card BINs may fail. Sync does not accept cryptocurrency directly, so pay by card or use a Mehbit proxy payment.

Best Mehbit card for Sync

Issue it, top up with USDT, then pay at checkout — in your own name.

Mehbit Visa — Singapore

Coming soon

Program countrySingapore
Issuance50 USDT
VAT9%

Apple PayGoogle Pay

View details

Mehbit Mastercard — Singapore

Program countrySingapore
Issuance20 USDT
VAT9%

Apple PayGoogle Pay

View details

Mehbit Mastercard — Hong Kong

Coming soon

Program countryHong Kong
Issuance50 USDT
VAT🔥 0% · No VAT

Apple PayGoogle Pay

View details

🔥

Save on payment tax

Some regions add VAT on top of every card payment. Pick a card from a lower-tax region and keep more of what you spend.

Fees & pricing

Clear and simple — the card load fee and the per-transaction fee are separate, with no hidden costs.

Card load fee

Charged when you move money from your wallet onto a card.

0.35USDT

Per-transaction fee

Charged on every payment you make with the card.

from20USDT

Card issuance fee

Depends on the card you choose — the exact fee for each card is shown above.

For businesses

We don’t charge businesses any extra fee — exactly the same rates apply. Need a dedicated solution? Get in touch.

Rates may be updated from time to time; the final rate is always shown in the app before you pay.

Why is payment hard?

Many local bank cards are not authorized for international SaaS billing. Services process payments through Stripe on international rails, so domestic-only cards are often declined even when you have sufficient balance.

Payment methods

Pay with a Mehbit virtual card

Issue a Mehbit virtual Visa or Mastercard, top it up with USDT, and add it in Sync’s billing settings to pay for your plan and per-second usage.

Open the app

Mehbit pays on your behalf

If Sync keeps declining your card, request a proxy payment in the Mehbit app and we pay Sync for you.

Submit a request in the app

Subscription plans

Hobbyist

$5/mo

Videos up to 1 minute
1 concurrent job
3 voice clones
$0.05 per second of output
Entry tier

Creator

$19/mo

Videos up to 5 minutes
3 concurrent jobs
5 voice clones
No watermark
$0.05 per second of output

Growth

$49/mo

Videos up to 10 minutes
6 concurrent jobs
15 voice clones
$0.0475 per second of output
5% usage discount

Scale

$249/mo

Videos up to 30 minutes
15 concurrent jobs
50 voice clones
$0.04 per second of output
20% usage discount

Enterprise

Custom pricing
Custom limits
Contact sales
Volume usage rates
Dedicated support

Card payment steps

Sign up for MehbitCreate an account in the web app or Telegram miniapp.
Top up with USDTFund your Mehbit wallet with USDT.
Issue a virtual cardIssue a Mehbit Visa or Mastercard for international subscriptions.
Pay at the serviceEnter the card details on the service's checkout page.

Card issued in under 1 hourSupport 7 days a week if anything goes wrong

FAQ

Does Sync accept virtual Visa or Mastercard?

Yes. Sync processes payments through a standard international card processor, so a reloadable virtual Visa or Mastercard with 3-D Secure is accepted like any normal international card. Single-use gift-card BINs may be rejected, but a proper reloadable card works.

Has a Mehbit card actually worked on Sync?

Yes. A Mehbit cardholder had two Sync charges settle in June 2026 — $5.00 and $6.42. Two later attempts were declined, but only because the card balance was too low at that moment, not because Sync rejected the card.

What is SYNCHRONICITY LABS INC on my statement?

That is Sync. Synchronicity Labs Inc is the legal entity behind sync.so, so your subscription and usage charges appear under that name, usually with a San Francisco location.

Can I pay for Sync with crypto?

Not directly — Sync has no crypto checkout option. With Mehbit you use crypto one step earlier: deposit USDT into your Mehbit wallet, load a virtual card, and pay Sync with that card.

Why did my Sync payment fail for insufficient balance?

Sync bills the plan fee and per-second usage separately, so a card loaded for the plan price alone can be short when the usage charge arrives. Keep a buffer above the plan fee to cover generations.

What if Sync still refuses my card?

Request a proxy payment in the Mehbit app. You tell us the plan you want, we pay Sync on your behalf, and the subscription is activated on your account.

Tips

Budget for usage on top of the plan price. The plan fee is only the floor — every second of generated video is billed separately at $0.05 or less. A card topped up for exactly $5 will cover a Hobbyist plan and almost nothing else.

Expect two separate charges, not one. Real Mehbit cardholder activity shows the plan fee and a usage charge landing as distinct transactions ($5.00 and $6.42 on the same day), so keep enough balance for both.

Recognise the descriptor. Sync bills under SYNCHRONICITY LABS INC, San Francisco. If you see that on your Mehbit statement and do not recognise it, it is your sync.so subscription — not an unknown merchant.

Top up before a big batch. Concurrent jobs on Growth and Scale can burn through credit quickly, and a mid-batch decline for insufficient balance will interrupt renders you have already queued.

Match the billing name and address on your Sync account to your card details. Card processors run AVS and 3-D Secure checks, and consistent billing information reduces the chance of a declined or flagged payment.

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