Dropbox Sign alternative for developers: an honest comparison from a competitor

If you're searching for a Dropbox Sign alternative, there's a decent chance you're a developer who liked the old HelloSign API and just found out what its pricing looks like now. Dropbox Sign is the former HelloSign - they say so themselves on their API page - and it's still a solid product with a real developer platform.

I build PutMySign, which competes with them. So don't take my word for any of this. Every number below links to the page it came from, and I checked them all on October 28, 2026.

The short version first:

	Dropbox Sign API	PutMySign
Entry price	$75/mo for 50 signature requests	$0 for 10 documents/mo, no card
Embedded signing	Standard plan, from $250/mo	Included on both plans
Embedded templates	Premium plan, custom quote	Unlimited on both plans
Test mode	Free, covers most features	Test key that never sends email
SDKs	Official SDKs in 6 languages	One REST call, HMAC webhooks
Compliance	SOC 2 Type II, ISO 27001, eIDAS, GDPR	-

1. The tier ladder is the real price

Dropbox Sign's API pricing starts at $75 a month ($900 billed yearly) for Essentials, which includes 50 signature requests a month. Bigger monthly volumes cost more per plan and less per request.

The catch is which features sit on which tier. Their own help page has a table for it: non-embedded signing and requesting work on Essentials, but embedded signing - the thing where the signing screen lives inside your app - needs the Standard plan, from $250 a month ($3,000 a year). Embedded templates need Premium, which is a custom quote.

So the API that "starts at $75" starts at $250 for the use case most developers are actually integrating.

Me in the $75 planlooking for embedded signing

PutMySign's pricing is flat: $0 for 10 documents a month, $19 for 100. Embedded signing, templates and webhooks are included on both plans. The limit is volume, not features.

2. Test mode: they win this one

Dropbox Sign lets you test every endpoint and most features free by setting test_mode to true, even from a free account. That's a genuinely good sandbox and I won't pretend otherwise.

PutMySign's answer is a test key that behaves exactly like a live key except it never sends email. It works the moment you create it - no sandbox, no review. Details in the API docs. And since the free plan is real usage, not a sandbox, you can ship a side project on it without ever upgrading.

3. SDKs vs one POST

Dropbox Sign ships official SDKs for Python, Ruby, PHP, Java, Node.js and C#. If you want a client library that mirrors every endpoint, they have it.

PutMySign deliberately has one call that matters: POST a template id and who signs it. Your backend never touches a PDF. Webhooks are signed with HMAC and retried until you 2xx. Here's the whole integration in the signature API page - it fits in a screenshot. Fewer SDKs to keep up with, because there's less API to wrap.

4. Compliance: Dropbox Sign wins, full stop

Dropbox Sign lists SOC 2 Type II, ISO 27001, eIDAS and GDPR compliance, with 2FA and AES 256-bit encryption at rest. If your buyer's questionnaire asks for any of those attestations, this comparison is over and you should go with them. I'm a one-person product and I don't have them. I'd rather lose the deal than have you find that out in procurement.

5. What "a signature request" costs you

On Dropbox Sign the unit is a signature request, and plans are sized by how many you send a month: 50, 100, 250, 500, 750+. On PutMySign the unit is a document, and a document can carry up to 10 recipients on the free plan, 50 on Pro.

Do the arithmetic at your volume. If you send hundreds of signature requests a month and need enterprise features, Dropbox Sign's volume pricing with a sales conversation might beat me. If you send tens to low hundreds and want the bill to be boring, $0 or $19 is hard to argue with.

When Dropbox Sign is the right pick

• You need SOC 2, ISO 27001 or eIDAS on paper. Not negotiable, they have it, I don't.
• You're already in the Dropbox ecosystem and want one vendor.
• You want an official SDK in your language, not a REST call.
• You're at a volume where a custom quote beats any published price. Ask them.

When PutMySign is the right pick

• You want embedded signing without a $250/month tier gate - it's included on the free plan.
• You send tens to low hundreds of documents a month and want the bill to be boring: $0 or $19.
• You want a key that works the second you create it, no sales call, no sandbox provisioning.
• You'd rather email the person who wrote the code than open a support ticket.

If you're still wider than these two, I compared the bigger field too: DocuSign API alternatives, and there's a similar honest look at SignWell. When you're ready to see the integration itself, the Next.js guide is the whole thing end to end.

Was it the tier ladder that sent you looking, or did the API itself fight back somewhere?