Secure and fast digital signature for your business quotes

Service contracts with digital signature

Qubu’s integrated digital signature allows your quotes and other important documents to be approved quickly and securely. Speed up your sales process and increase trust with legally binding signatures — all in one place.

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Secure digital signature for documents

  • Get quotes approved fast and safely with legally valid digital signatures.
  • Remove paper from your workflow entirely.
  • Reduce turnaround time with remote, one-click signing.
  • Add security and professionalism to every transaction.
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The benefits of signing contracts digitally

Full legal security

Each contract sent from Qubu includes a legally binding digital signature that protects both you and your client in every transaction.

Effortless acceptance

Clients can review and sign from any device — no printing, scanning, or third-party tools required. Just a smooth, modern process.

Complete control and traceability

You’ll always know who signed, when they signed, and whether a contract was declined or expired.

Flexible pricing to match your business

Start with a 15-day free trial, then enjoy 50% off for the first 3 months.
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More than quotes: everything you need in one app

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AI-powered quote generation

Create professional quotes in minutes. Add your services, define terms, translate into multiple languages, and send it all with a contract — powered by artificial intelligence.

AI-powered quote generation
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Professional presentations

Turn your service proposals into stunning presentations with the help of AI. Perfect for showcasing value clearly and persuasively.

Professional presentations
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Quote translation

Expand to global markets with multilingual quotes. Instantly translate your proposals and connect with more clients around the world.

Quote translation
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Real-time sales management

Track the status of every quote — sent, accepted, expired, or declined. Manage your team’s activity and improve your close rate with data-driven control.

Real-time sales management

FAQs

When you send a quote through Qubu with a contract attached, your client receives a secure link to view and sign it online. They don’t need to download any software or register on another platform. The process is fast, user-friendly, and fully optimized for desktop and mobile. Once the digital signature is completed, both you and your client receive a signed copy, and Qubu logs the event with a full audit trail including timestamps, IP address, and document status.

Yes. Yes, absolutely. Qubu’s digital signature feature complies with international standards, including eIDAS in the EU and the ESIGN Act in the U.S., making it fully recognized in courts and legal proceedings. Every signed document includes a time-stamped, encrypted signature that proves the signer’s identity and consent. This gives you peace of mind and ensures your agreements are enforceable, even across different countries or jurisdictions.

Yes. Qubu uses advanced encryption and verification systems to ensure that every digital signature is authentic and tamper-proof. Each signature is linked to the signer’s identity, date, time, and device used, creating a complete and legally valid audit trail. This not only protects your business but also provides a transparent process that builds trust with your clients. You can always prove who signed, when, and under what terms.

A contract with a digital signature is a legally binding document that can be signed electronically, without the need for printing, scanning, or physical delivery. It provides the same legal protection as a handwritten signature, but with the added advantages of speed, traceability, and convenience. With Qubu, you can attach service contracts directly to your quotes, allowing clients to review and sign from any device, streamlining the approval process and ensuring legal validity at every step.

Qubu allows you to attach a wide range of contracts to your quotes, including service agreements, sales proposals, NDAs, and retainer agreements. You can upload your own templates or use customizable ones within the platform. Once attached, the contract becomes part of the same file your client receives, making it easy to review and sign everything in one go — with full digital signature support to keep it secure and legally valid.

Attaching a contract to your quote from the beginning reinforces professionalism and creates trust with your client. It ensures both parties understand the scope, pricing, and terms of service before work begins. By using Qubu, you avoid misunderstandings, reduce negotiation time, and protect your business with clear legal backing. When combined with a digital signature, your quotes become complete, ready-to-close documents that leave no room for confusion or delays.
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