Zoho Sign vs OneInbox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zoho Sign
Securely sign and manage digital documents from any device. This cloud-based solution integrates with your favorite apps for a seamless signing experience on the go. It offers robust security and compliance features for legally binding agreements.
- Legally binding e-signatures
- Cross-device signing
- Cloud storage integration
- Customizable templates
- QR code SignForms
- In-person signing
- Payment collection during signing
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Zoho Sign is a robust digital signature solution that lets you securely sign documents from anywhere, at any time, directly on your iPhone, iPad, or MacBook. Built entirely on the cloud, our e-signature app seamlessly integrates with your everyday applications, providing a smooth and efficient online signing experience on the go. Trusted by users worldwide, Zoho Sign combines simplicity with top-notch security, making it one of the most reliable electronic signature apps on the market. "Zoho Sign is a comprehensive tool that serves all signing purposes. From sequential signing to automated follow-ups and document tracking, Zoho Sign does it all." - Devendra Kandalkar, ACG World Key features: - Sign and send legally binding agreements, contracts, and forms across devices (iPhone, iPad, Mac) in various formats (PDF, DOCX, PNG, and more). - Export signed documents to cloud storage apps like Google Drive, Dropbox, and OneDrive. - Create reusable, custom templates for enhanced productivity. - Customize and manage SignForms with QR codes for easy signing without the app. - Add customizable fields (signatures, dates, text, and more). - Incorporate logic and advanced fields for dynamic data collection. - Collect signatures in person on your iPhone or iPad to speed up contract execution. - Collect payments during signing with the Zoho Checkout integration. - Verify signer identity using dynamic KBA (knowledge-based authentication). - Get real-time push notifications for every action taken on your document. - Switch between multiple Zoho Sign accounts or view everything in one place through the unified inbox. Additional features: - Send reminders for prompt document signing. - Initiate signing directly from your inbox. - Reassign signing tasks when needed. - Share completed documents via iMessage. - Use split-screen on iPad for multitasking. - Set up Siri shortcuts for signing using face ID, tracking, and scanning documents. - Add Zoho Sign's widget to your Control Center to quickly scan, sign, and browse. - Find signed documents instantly with Spotlight Search. - Get key details summarized with Zia's text summarization. Common documents to eSign with Zoho Sign: - Invoices - Sales contracts - Business proposals - Purchase orders - Lease agreements - Partnership agreements - Employment offers and more. Security and compliance: - Data is securely transmitted via an SSL/TLS connection and encrypted with AES 256-bit encryption while at rest. - Zoho Sign complies with the ESIGN Act, UETA, GDPR, HIPAA, and other industry-standard regulations, ensuring legal digital signatures and data protection compliance. - All documents are legally binding with a comprehensive audit trail including timestamps, the signer's email address, device IP, and completion details. - Biometric authentication like Touch ID and passcodes prevent unauthorized access. - Security codes ensure only authorized individuals can access and sign the documents. Legal & Security: - Certification of Completion: Get automatic audit trails for completed documents with time stamps and IP addresses. - Increase security using Touch ID and Passcode to block unauthorized access. - Set security codes and share it directly with the recipients to prevent unauthorized access. - Compliant with ESIGN act and industry standard laws. Plans and pricing: Free plan: Sign up for our free eSign app and get five documents per month at no cost. Standard plan: - Monthly: 12 USD/month - Yearly: 120 USD/year - Includes 25 documents per month for signing Professional plan: - Monthly: 18 USD/month - Yearly: 180 USD/year - Unlimited document signing Subscription details: Subscriptions are charged to your iTunes account upon purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Auto-renewal can be disabled in Account Settings after purchase. Privacy Policy: https://zoho.com/privacy Terms of use: https://zoho.com/terms
OneInbox
Consolidate all customer WhatsApp conversations into a single, organized workspace for your team. Assign chats, manage contacts, and use message templates for efficient customer communication and tracking.
- Shared team inbox for WhatsApp
- Conversation assignment to team members
- Organized contact management
- WhatsApp message template access
- Conversation status tracking (Open, Pending, Solved)
- Collaborative team workspace
- Credit visibility
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OneInbox — One Inbox. Every Conversation. OneInbox is a shared WhatsApp Business inbox designed to help teams manage customer conversations from one organised workspace. Bring your WhatsApp conversations, contacts and team workflows together so your team can respond efficiently, stay organised and keep track of every customer interaction. SHARED TEAM INBOX Manage WhatsApp conversations from a central inbox built for teams. View active chats, unread conversations and conversation status in one place. TEAM ASSIGNMENTS Assign conversations to team members so everyone knows which conversations they are responsible for and customers get the right response. CONTACT MANAGEMENT Keep customer contacts organised and quickly access the conversations and information your team needs. WHATSAPP MESSAGE TEMPLATES Access and manage approved WhatsApp message templates to communicate with customers using consistent, reusable messages. CONVERSATION MANAGEMENT Organise conversations using statuses such as Open, Pending and Solved, helping your team maintain a clear workflow. MEDIA & MESSAGING Communicate with customers using text and supported media while keeping the conversation history together in one place. TEAM WORKSPACE Bring team members together inside a shared workspace with roles and permissions designed for collaborative customer communication. WALLET & CREDIT VISIBILITY Keep track of your workspace credit information directly from OneInbox. Whether you're handling customer support, enquiries, bookings, sales conversations or everyday customer communication, OneInbox gives your team a simpler way to manage WhatsApp conversations. One inbox. Every conversation. Zero chaos. Speed improvements
Screenshots
Verdict
The clearest difference is in-app purchases: OneInbox at none against Zoho Sign's 4. OneInbox also leads on update cadence (every 5 days vs every 4 weeks) and iOS requirement (15.1 vs 17). Zoho Sign's advantage is ratings volume (885 vs 2). On price, rating, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Zoho Sign sells 4 in-app purchases, starting at $11.99 per month. OneInbox asks for nothing beyond the download.
OneInbox holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Zoho Sign has 885 ratings behind it against 2, so its average is the more settled of the two.
Zoho Sign ships an update every 4 weeks, OneInbox every 5 days. The most recent releases landed on November 10, 2026 and November 5, 2026 respectively.
| Parameter | Zoho Sign | OneInbox |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (885 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 885 — better | 2 |
| Update frequency | Every 4 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17 | 15.1 — better |
| Further details — not scored | ||
| Size | 168 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Zoho Corporation | Mobo Media |
Customer experience
Zoho Sign
OneInbox
Bugs and requests
Zoho Sign
Reported bugs
8 issues- Quick send feature doesn't work
- Input box sizing is incorrect on mobile
- Cannot delete boxes once selected
- Email dropdown autofill not visible
- Font size changes arbitrarily when rotating device
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- Automatic date insertion when not needed
- Persistent tag overlay following user through document
- Excessive required fields (initials for missing middle names)
Requested features
13 requests- Folder view for iPhone (like iPad version)
- Ability to change plans and purchase credits from app
- Professional default email templates
- Multiple brand/business email sender options
- Field duplication for multiple recipients
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- Set default values for fill-in fields
- Ability to resize and snap fields into position
- Contact management in app
- Document stamping feature
- Freehand signature option
- Multiple signature support
- Template access within mobile app
- Ability to delete boxes after selection
OneInbox
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Zoho Sign
- Standard - Monthly$11.991 Month
- Professional - Monthly$19.991 Month
- Standard - Yearly$119.991 Year
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- Professional - Yearly$189.991 Year
OneInbox
No in-app purchases









