Buy conversions outright, without taking out a plan
Somebody who needs forty conversions once should not have to start a monthly subscription and remember to cancel it. A pack is a single payment: the conversions sit on the account until they are used, and they do not expire. It is also the more expensive way to convert, deliberately and by some distance — if you convert regularly a plan costs less, and this page works out by how much rather than leaving you to discover it afterwards.
- Three packs: 20 conversions for $4.99, 100 for $14.99, 500 for $49.99
- Bought conversions do not expire — they stay until they are used
- Spent only after the day's plan allowance is gone, never before it
- Every movement is a row in a ledger you can read back
How it works
- 01
Choose one of three packs
Twenty conversions for $4.99, a hundred for $14.99, or five hundred for $49.99. Nothing recurs and nothing renews: you pay once, for what is in the pack.
- 02
Pay once, through Stripe
Buying opens a Stripe checkout for that single payment. It needs a signed-in account that already has a payment method on file — if there is none, the request says to add one first instead of opening a checkout that cannot complete.
- 03
The conversions land on the account
Stripe reports the payment and the pack is added. Each purchase is recorded against the payment it came from, and that record is unique, so a notification delivered more than once credits the pack exactly once.
- 04
They are spent last, not first
The plan's daily allowance is always drawn down first. A bought conversion is only taken for work that ends up past that allowance, so a pack can never quietly pay for something the plan had already covered.
The three packs
These are the only sizes. The per-conversion figure beside each one is simply the price divided by the contents — the same figure the service reports when you ask what your balance is worth.
20 conversions — $4.99
Just under $0.25 each, which makes this the most expensive conversion on the site. It is for one job that runs past the free daily allowance by a little and is not going to happen again next week.
100 conversions — $14.99
Just under $0.15 each — around forty percent less per conversion than the small pack. Still more per conversion than a subscription works out at, which is the comparison worth making before buying it.
500 conversions — $49.99
Just under $0.10 each, the cheapest of the three per conversion. It is also the size at which a plan is almost certainly the better buy, for the reason set out below.
There is no fourth size and no custom amount. If none of the three fits what you need, that is usually the sign that a plan fits it better.
A pack is worse value than a subscription
Worth saying plainly, at the top of this section rather than in a footnote at the bottom: for anyone converting regularly, a pack is the expensive option. Leaving that to be discovered afterwards would push people onto it for usage a plan would have covered for less.
Take the hundred-conversion pack at $14.99. The Starter plan is $9.99 a month and allows 100 weighted operations every day — around thirty times the pack's contents over a month, for five dollars less than the pack costs once. Anyone converting on more than a day or two a month is better off on the plan.
The five-hundred pack at $49.99 sits against Pro at $29.99 a month, which allows 500 weighted operations a day. The pack costs twenty dollars more than a month of Pro for what Pro covers in a single day.
A pack wins in one case, and it is a real one: you need conversions once, or a handful of times a year, and would rather not carry a subscription you have to remember. That is what it is priced for, and it is the only case in which it is the cheaper choice.
Plan prices and allowances are on the pricing page, which is the authority for them; the pack prices above come from the same catalogue the purchase endpoint sells from.
When a bought conversion is actually spent
The order is fixed, and it is fixed in your favour. The plan's daily allowance is used first, every time. A credit is only taken once that allowance is gone — spending one while free daily conversions were still available would be charging you for something you already had.
A credit is taken by the accounting step that runs after an operation has been accepted, not by the check that accepts it. What decides whether an operation runs is the plan's allowance; a credit covers work that ended up past it — a batch, for instance, that turned out to weigh more than it was counted for when it was accepted.
On a plan with no daily ceiling there is nothing to run out of, so nothing is ever taken. A Business account does not spend bought conversions at all.
One conversion costs one credit, whatever the file. Two requests arriving in the same instant cannot both spend the last one: the balance is decremented by a single conditional write, so the second finds nothing there to take.
Every movement is written down
The balance is money, and a bare counter can only answer how many. The questions people actually ask are why it changed and whether they were charged twice, so every movement is a row: the amount, the direction, the reason, and the balance immediately after it.
Rows are never edited. A correction is another row, so the history only ever reads forward and cannot be quietly rewritten. There are four reasons a balance moves — a purchase, a use, a refund, or a grant — and each row carries the one that applies.
The ledger is not swept or trimmed to reclaim space, because it is the record of money moving. Asking the service for your credits returns your balance, the packs on sale, and your twenty-five most recent movements.
What buying requires
A signed-in account. A pack belongs to an account, so there is nothing to attach it to otherwise.
A payment method already on file for that account. Without one the request says to add a payment method first — it does not open a checkout that would fail after you had committed to buying.
A pack that has been configured for sale. If one has not been, the service reports it as unavailable rather than starting a purchase it cannot finish.
Nothing else. One payment grants one pack: the purchase is recorded against the payment it came from, and that record is unique, so a payment notification that arrives twice — which happens by design, when the processor is unsure the first one landed — adds the conversions only once.
Questions
Do bought conversions expire?
No. They stay on the account until they are used. There is no expiry date, no monthly reset, and nothing that quietly uses them up in the meantime.
Are they spent before my plan's daily allowance?
No, and the order is deliberate. The daily allowance is always drawn down first; a bought conversion is only taken for work that ends up past it. Spending a credit while free daily conversions were still available would be charging you for something you already had.
Is a pack cheaper than a subscription?
Almost never. Per conversion a pack works out at just under $0.25, $0.15 or $0.10 depending on its size, while the Starter plan is $9.99 a month for 100 weighted operations a day and Pro is $29.99 a month for 500 a day. If you convert on more than a day or two in a month, a plan costs less. The pack is priced for genuinely occasional need, and that is the case it is good for.
What do I need before I can buy one?
A signed-in account with a payment method already on file. If there is no payment method the request tells you to add one first; it does not open a checkout that cannot complete. A pack that has not been configured for sale is reported as unavailable rather than half-sold.
Can I see what happened to my credits?
Yes. Every movement is a row: the amount, the reason — a purchase, a use, a refund or a grant — and the balance immediately afterwards. Asking for your credits returns your balance, the packs on sale, and your twenty-five most recent movements. Rows are never edited, so a correction appears as its own entry rather than changing an old one.
Could one pack be credited, or charged, twice?
One payment can only ever be credited once. Each purchase row records the payment that produced it, and that record is unique, so a payment notification delivered more than once adds the pack a single time and the repeat is ignored.
How many credits does one conversion cost?
One, whatever the file. A credit is one conversion rather than a weighted operation: the daily allowance is weighted, so a video draws more of it than an image does, but a credit does not work that way — one conversion, one credit.