SignNow Mobile SDK: Cost-Effective eSignature Solutions
SignNow Mobile SDK: Secure eSignature Integration
Integrate a powerful and easy-to-use eSignature solution with your mobile apps to speed up approvals and simplify document-based transactions. Minimize development cycles with a seamless eSignature SDK that works with both iOS and Android.
signNow mobile sdk is a software development kit that embeds secure electronic signing directly into native iOS and Android applications, enabling end users to complete agreements without leaving the app. It supports field placement, signature capture, basic form logic, and offline signing with local storage and later synchronization. The SDK exposes APIs for document preparation, signer authentication, and audit trail generation, and is designed to integrate with existing back-end systems while aligning with common U.S. legal expectations for electronic records and signatures.
Why teams integrate the signNow mobile sdk
Adding signNow mobile sdk keeps signing flows inside native apps, reduces user friction, and preserves consistent branding while providing audit logs and authentication options that help meet U.S. legal and compliance expectations.
Common technical and operational challenges
Handling offline signatures reliably across many device models requires careful local persistence and robust conflict resolution on reconnect.
Ensuring consistent signature appearance and accessibility across iOS and Android can increase UI development and testing efforts.
Implementing strong signer authentication often requires coordinating with identity providers and handling additional configuration and latency.
Capturing legally relevant audit data requires precise timestamping, event logging, and secure storage to satisfy compliance reviewers.
Representative user profiles for mobile SDK projects
Mobile Developer
A mobile developer integrates the signNow mobile sdk into native iOS or Android applications, implements signature fields, adapts the UI to platform conventions, and writes synchronization logic for offline scenarios. They rely on SDK documentation, example projects, and API references to implement robust signing workflows.
Security Architect
A security architect evaluates encryption, authentication options, and audit trail integrity. They plan secure key storage, configure TLS and token handling, and ensure the signNow mobile sdk deployment aligns with organizational policies and regulatory requirements like HIPAA or FERPA where applicable.
Roles that commonly implement signNow mobile sdk
Typical users include mobile developers, product managers, and compliance leads integrating signing into apps for native experiences.
Mobile app developers building native signing experiences
Product teams designing branded and embedded workflows
Compliance officers ensuring auditability and legal validity
Collaboration among these roles helps balance user experience, technical constraints, and regulatory requirements during SDK implementation.
Key capabilities of signNow mobile sdk
Primary technical and user-facing features available in the signNow mobile sdk that support secure, embedded signing workflows on mobile devices.
Offline Signing
Local caching of documents and captured signatures with encrypted storage so users can complete forms without connectivity and synchronize when the network is restored.
Custom UI
APIs and UI components allow developers to adapt field appearance, placement, and interactions to match native app design while preserving signature integrity.
Field Types
Support for signature, initials, date, text, checkbox, and calculated fields, enabling complex forms and conditional logic directly within the mobile signing flow.
Multi-party Workflows
Coordinate sequential or parallel signing by multiple parties, enforce signing order, and manage signer roles in-app to reflect real-world agreement processes.
Audit Trail
Automatically capture signer events, timestamps, device metadata, and IP information to create forensically useful records for each executed document.
Authentication Options
Built-in support for email, SMS, and token-based verification, with the ability to integrate additional identity providers for higher-assurance signings.
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Integrations: Google Docs, CRM, and Dropbox with signNow mobile sdk
Common integration patterns for combining signNow mobile sdk with document sources and enterprise systems to streamline workflows.
Google Docs Integration
Retrieve documents from Google Drive, convert them to signing-ready PDFs, and push completed files back to the user’s Drive while maintaining metadata to track versions and signatures within the document lifecycle.
CRM Connectors
Link signNow mobile sdk flows to CRM records so agreements are pre-populated with customer data, status updates are written back to the CRM, and signed artifacts are associated with the relevant contact or opportunity.
Dropbox Sync
Enable document pickup and archival between mobile apps and Dropbox, letting users select templates from cloud storage and ensuring signed documents are stored in designated folders with consistent naming conventions.
Custom Connectors
Use the SDK and API hooks to build bespoke integrations with back-end services, document management systems, or industry-specific platforms for automated routing and archival.
Core signing flow with signNow mobile sdk
High-level flow describing document preparation, signer verification, signature capture, and record generation on mobile.
Prepare Document: Upload and place sign fields programmatically.
Authenticate Signer: Apply chosen authentication before signing.
Capture Signature: Collect signature via touch or stylus input.
Generate Audit Trail: Record events, timestamps, and metadata.
Collect signatures
24x
faster
Reduce costs by
$30
per document
Save up to
40h
per employee / month
Quick setup steps for signNow mobile sdk
A concise workflow to get the SDK operational in a development environment and test native signing flows.
01
Install SDK: Add the SDK package for iOS or Android.
02
Configure API Key: Set credentials and environment variables.
03
Add Signature Fields: Place and configure signable fields in documents.
04
Test & Deploy: Run end-to-end scenarios and release.
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Why choose airSlate SignNow
Free 7-day trial. Choose the plan you need and try it risk-free.
Honest pricing for full-featured plans. airSlate SignNow offers subscription plans with no overages or hidden fees at renewal.
Enterprise-grade security. airSlate SignNow helps you comply with global security standards.
Configuration examples for common signNow mobile sdk settings used to automate and manage signing workflows within mobile applications.
Setting
Configuration
Reminder Frequency
48 hours
Authentication Method
Email or SMS
Auto-Archival
Enabled
Retention Period
365 days
Webhook Notifications
Enabled
Supported platforms and minimum requirements
The signNow mobile sdk supports current and recent versions of iOS and Android along with common mobile device capabilities.
iOS:iOS 12 and later
Android:Android 8.0 and later
Browser WebView:Modern WebView support
Developers should verify OS version compatibility, hardware encryption availability, and build toolchain requirements for their target devices; test across representative devices to confirm performance and offline behaviors before production rollout.
Security controls in the signNow mobile sdk
Encryption in transit:TLS 1.2+ with strong ciphers
The signNow mobile sdk is used across regulated and high-volume industries to embed compliant signing into native applications while preserving user experience and auditability.
Healthcare Mobile Consent
A hospital integrated signNow mobile sdk into its patient check-in app to capture informed consent on tablets, reducing paper handling and improving accuracy
Field validation and signer authentication were enforced on-device to confirm identity
The app generated an immutable audit trail uploaded to secure storage after synchronization
Resulting in reduced administrative workload, clearer records for compliance reviews, and faster patient processing during intake.
Real Estate Leasing App
A property manager embedded signNow mobile sdk into a leasing application to allow in-person and remote signing of lease agreements
The SDK supported multi-party workflows with conditional fields for co-signers
Documents were cached for offline completion and synchronized when connectivity resumed
Resulting in shorter lease cycle times, fewer lost forms, and recorded audit trails for each executed lease.
Best practices for secure and accurate mobile signing
Operational and development practices that reduce errors and improve compliance when embedding signNow mobile sdk into applications.
Confirm signer identity using multi-factor authentication
Require at least one strong identity check such as SMS OTP or OAuth-backed identity before allowing high-value or regulated documents to be signed, and record the chosen method in the audit trail.
Design clear, accessible signature fields for mobile use
Place signature and required-field indicators prominently, provide adequate touch targets, and test with assistive technologies to ensure accessibility and reduce input errors on smaller screens.
Implement secure local storage and synchronization policies
Encrypt cached documents, limit retention on devices, and ensure synchronization routines validate document integrity and upload audit events promptly when connectivity resumes.
Log comprehensive audit data and preserve immutability
Capture timestamps, device metadata, and event sequences, store immutable hashes of signed content, and retain logs in a secure location to support future compliance and dispute resolution.
Follow the platform-specific package manager instructions for iOS (CocoaPods or Swift Package Manager) or Android (Gradle). Configure API credentials in a secure manner and follow the initialization patterns in the SDK documentation to instantiate clients and prepare test documents.
signNow mobile sdk supports email and SMS verification out of the box and can be integrated with OAuth2 identity providers for stronger authentication. Choose verification based on transaction risk and document sensitivity and record the method in the audit trail.
The SDK caches documents and captured signatures locally with encryption. When the device reconnects, the SDK synchronizes signed content and audit events to the server, resolving any conflicts based on configured rules and timestamps.
Audit logs include event timestamps, signer identifiers, device metadata, IP addresses when available, and document hashes. This data supports compliance and forensics while being stored with the completed document record.
Implement required administrative and technical safeguards, enable encryption in transit and at rest, limit access controls, sign a business associate agreement where required, and ensure your usage and storage practices align with HIPAA policies.
Use sandbox or staging environments provided by the API, exercise offline and reconnect scenarios, test authentication flows, and verify audit trail completeness. Conduct device matrix testing to cover representative OS versions and hardware.
Feature comparison: signNow mobile sdk versus major eSignature SDKs
A high-level availability and capability comparison focused on mobile SDK functionality and compliance-related features for U.S. use cases.
Pricing and plan comparison among popular providers
Representative starting points and common plan attributes. Pricing varies by region, contract, and added services; reconfirm with each provider for procurement decisions.
Plan Feature
signNow (Recommended)
DocuSign
Adobe Sign
HelloSign
PandaDoc
Starting Price
$8 per user/month
$10 per user/month
$9 per user/month
$15 per user/month
$19 per user/month
Free Tier
Limited free trial
No free tier
Free trial available
Free tier available
Free trial available
API Access Included
Yes, in business plans
Yes, paid plans
Yes, enterprise
Yes, paid plans
Yes, paid plans
HIPAA Compliance
Available on business plans
Enterprise add-on
Enterprise offering
Enterprise offering
Enterprise offering
Annual Discount
Yes, on annual billing
Yes
Yes
Yes
Yes
What is the airSlate SignNow Mobile SDK?
The SDK offers a fast and easy way to embed secure eSignature workflows in your iOS and Android applications.
The current version of the SDK allows you to:
✅ Fetch document metadata
✅ Setup a signing process
✅ Embed eSignatures in Kotlin and Java projects
Take advantage of user-friendly approval workflows seamlessly integrated with your mobile apps
Authorize in airSlate SignNow from your app
Access your airSlate SignNow account and start using the award-winning eSignature software.
Access your airSlate SignNow documents
Fetch documents and templates stored in your airSlate SignNow account and use them directly in your application.
Pre-fill documents before signing
Fill out blank fields inside your fillable documents with data before your signing session begins.
Collect signatures in a role-based order
Add one or multiple signers and get their legally-binding electronic signatures on contracts, agreements, invoices, or other documents right inside your app.
Why choose the airSlate SignNow Mobile SDK?
Developer-friendly solution
Time and cost savings
Security and compliance with international eSignature laws and regulations
Stability and reliability
100% self-service
Compatible with both iOS and Android
Why embed airSlate SignNow eSignatures in your mobile apps?
⭐ Near instantaneous online approvals from anywhere
⭐ End-to-end signing workflows completed within your mobile application
⭐ Powerful eSignature functionality adds value to your software product
⭐ Custom branding makes a professional impression on your users
How to get started with the airSlate SignNow Mobile SDK?
Obtain your credentials. To create your Client ID and Client Secret, follow the link.
Set up the SDK. Initialize the airSlate SignNow Mobile SDK inside your application with a single string of code and authorize using your credentials.
Start your session. Use the Access Token and Refresh Token you obtained during authorization.
Fetch documents from your airSlate SignNow account. You can easily fetch a specific document’s metadata using its ID.
Add data and signatures. Pre-fill a selected document using key-value pairs (if needed), specify signer email addresses, and start the signing process.
Learn more about the SDK implementation in our detailed guide.
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