Formfy is an AI Agreement Engine for SMS-first client onboarding.
Why Formfy Is the Best Dropbox Sign Alternative in 2026
Formfy is the AI Agreement Engine for SMS-first client onboarding. If you're evaluating Dropbox Sign and wondering whether Formfy is a better fit, the core distinction is this: Dropbox Sign (formerly HelloSign) is a polished e-signature layer inside the Dropbox ecosystem. Formfy generates the agreement, delivers it by SMS, and collects payment in the same mobile link.
Who switches to Formfy from Dropbox Sign
- Service businesses not in the Dropbox ecosystem who found Dropbox Sign's value proposition tied to Dropbox storage they don't use.
- Clinics and studios collecting deposits who need signature and payment in one mobile flow — Dropbox Sign has no payment collection capability.
- Operators generating new agreements frequently — personal trainers adding a new service, med spas introducing a new treatment — who need AI to draft the form, not just sign a document they already have.
- Businesses that need SMS delivery — Dropbox Sign is email-first; the form doesn't arrive in a text, which means clients who live in their messages don't see it.
What Formfy does differently
- AI generates the agreement. Describe what you need; Formfy produces it. Dropbox Sign requires a pre-existing document — there's no AI layer that generates the form from a prompt.
- SMS is the default delivery channel. The signing link arrives in a text message. Dropbox Sign is link-based and email-first; SMS is via third-party integration, not a built-in channel.
- Payment-in-flow. Deposit or full payment happens on the same mobile link. Dropbox Sign has no native payment collection — it's a pure signing layer.
- Not tied to Dropbox storage. Formfy stores signed agreements independently. You don't need a Dropbox subscription to get value from Formfy the way the Dropbox Sign + Dropbox bundle implies.
- MCP server for AI agents. Formfy ships an MCP integration so agents can create and route agreements programmatically. Dropbox Sign's API is solid but there's no agent-native tooling.
Feature comparison
| Feature | Formfy | Dropbox Sign | |---|---|---| | AI form generation from prompt | Yes | No | | Legally binding e-signature | Yes | Yes | | SMS delivery built in | Yes | No | | Payment collection in flow | Yes | No | | Dropbox / cloud storage integration | Partial | Yes (native) | | Mobile-first signing UX | Yes | Yes | | HIPAA-compliant plan | Yes | Yes | | Audit trail export | Yes | Yes | | MCP / agent-native integration | Yes | No | | Scheduling integration | Yes | No | | Template library | Yes | Yes | | Custom branding | Yes | Yes |
Pricing
Dropbox Sign Essentials starts at $15/month for one user; Standard is $25/user/month. If you're also paying for Dropbox storage, the combined cost rises significantly. Formfy Pro is $39/month for unlimited forms, SMS delivery, and payment collection. For service businesses that need more than a signing layer, Formfy covers the full workflow for a comparable or lower monthly price.
Other tools to consider
- SignNow — Budget-conscious e-signature alternative to DocuSign; similar to Dropbox Sign in positioning but lower per-seat cost; no SMS or payment.
- DocuSign — Enterprise-grade signing with deeper audit trail and procurement vetting; more overhead than Dropbox Sign for most SMBs.
- Adobe Sign — Deep Acrobat/Document Cloud integration for teams in the Adobe ecosystem; similar email-first signing model.
- PandaDoc — B2B proposals with signing; better than Dropbox Sign when document design and line-item pricing matter.
- Jotform — General-purpose form builder with signature field; more flexible than Dropbox Sign for complex intake flows.
- Smartwaiver — Purpose-built waiver kiosk for gyms and activity venues; simpler than Formfy for a single-waiver workflow.