Comparison

Document Signer vs AI Chat Assistant

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Document Signer

Easily sign PDFs, fill forms, and manage scanned documents. This app offers a free e-signature feature and a camera scanner. Upgrade to Pro for advanced editing tools, templates, and cloud syncing.

Highlights
  • Electronic document signing
  • PDF and image file signing
  • Camera scanner for documents
  • Document editing tools
  • Ready-to-use templates
  • Google Drive syncing
  • Local storage for privacy
Features
Read full description

Introducing SimpleSign, your ultimate assistant for electronically signing and managing documents with ease. Whether you need to sign a PDF, fill out forms, or organize scanned documents, SimpleSign offers a comprehensive solution designed to streamline your workflow. Effortless Document Signing and Editing SimpleSign simplifies the process of signing documents electronically. With a user-friendly interface and intuitive design, you can sign PDFs and image files seamlessly. Utilize the free e-signature feature to sign documents quickly and securely. For full access to premium tools, templates, and advanced editing features, an upgrade to SimpleSign Pro is available. Versatile Editing Tools Enhance your documents with multiple editing tools available in SimpleSign. Customize texts, import images, add checkboxes, and insert initials wherever necessary. Some advanced editing features require a Pro subscription. Comprehensive Document Management Manage your documents effectively with SimpleSign’s integrated features. Use the free camera scanner to capture physical documents and convert them into digital files. Organize your documents within the app, making it easy to access and retrieve important information. Pro users can unlock additional tools for improved workflow efficiency. Ready-to-Use Templates Save time with SimpleSign’s extensive library of templates. Choose from over 15+ pre-designed templates for contracts, forms, and more. Some templates are available for free, while premium templates require a Pro subscription. Secure and Private Rest assured that your documents are secure with SimpleSign’s local storage feature. No account is required to start signing. Your documents remain on your device for maximum privacy. Integration and Google Drive Syncing With its brand new feature, SimpleSign can now backup all your scanned and signed documents with the connection of your Google account. It seamlessly integrates with your workflow giving you the ability to never loose your documents and easily recover them to a new phone! Upgrade to SimpleSign Pro Unlock premium features with a SimpleSign Pro subscription, including: - Access to all templates - Advanced editing tools - Unlimited document storage - Priority support - More customization options SimpleSign Pro offers a 3-day free trial for new users, followed by a paid subscription. Privacy Policy: https://sites.google.com/view/simplesign/privacy-policy Terms of Use: https://sites.google.com/view/simplesign/terms-conditions Support: zionstudiosapps@gmail.com All rights reserved, Zion Studios LLC, 2024

About

AI Chat Assistant

This AI companion offers intelligent chat, image generation, and detailed image descriptions. It provides specialized assistants for various tasks and saves conversation history. Start for free and upgrade for advanced AI capabilities.

Highlights
  • AI Chat Assistant
  • AI Image Generation
  • Smart Image Descriptions
  • Specialized AI Assistants
  • Chat History
Features
Read full description

ChatOne – AI Chat and Image Generator Meet ChatOne, your intelligent AI companion for creativity, productivity, learning, and everyday problem-solving. Chat with AI, generate images, get instant answers, explore new ideas, and improve your workflow using one powerful app. Whether you are creating content, studying, solving a technical problem, or brainstorming your next project, ChatOne provides fast and practical AI assistance whenever you need it. What You Can Do with ChatOne AI Chat Assistant Ask questions, brainstorm ideas, write content, summarise information, or learn something new through a natural and context-aware AI chat experience. AI Image Generation Turn your ideas into high-quality AI-generated images. Create visuals for personal projects, social media, marketing, design inspiration, and more. Smart Image Descriptions Upload an image and receive a detailed AI-generated description. This can be helpful for accessibility, research, content creation, and understanding visual information. Specialised AI Assistants Choose from assistants designed for different tasks, including coding, writing, productivity, learning, brainstorming, and personal development. Chat History Save your conversations and return to them later without losing important context. Free to Start Explore ChatOne for free. Upgrade only when you need access to additional features and advanced AI capabilities. Why Choose ChatOne • Fast and natural AI conversations • AI tools for text, ideas, and images • Clean and user-friendly interface • Support for work, study, creativity, and everyday tasks • Multiple AI-powered features in one app Designed for Everyone Creators and Designers Generate visual ideas, image descriptions, creative concepts, and content inspiration. Writers and Students Get assistance with writing, summaries, explanations, research ideas, and feedback. Developers and Technology Enthusiasts Ask programming questions, understand technical concepts, debug code, and explore development best practices. Business Professionals Save time with brainstorming, content creation, productivity support, and AI-powered insights. Subscription Options Weekly Subscription Title: ChatOne Weekly Subscription Length: 1 week Price: $6.99 per week Monthly Subscription Title: ChatOne Monthly Subscription Length: 1 month Price: $14.99 per month Yearly Subscription Title: ChatOne Yearly Subscription Length: 1 year Price: $54.99 per year Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current subscription period. Payment will be charged to your Apple ID account. You can manage or cancel your subscription through your Apple ID account settings. Privacy and Security Your privacy is important to us. Please review our Privacy Policy and Terms of Use to understand how your information is handled. Privacy Policy https://www.deepgronkai.com/privacy.html Terms of Use https://www.deepgronkai.com/terms.html Download ChatOne Today Discover a smarter way to chat, create, learn, and work with AI using ChatOne.

Screenshots

Document Signer4 screens
AI Chat Assistant4 screens

Verdict

The call

The clearest difference is ads: Document Signer at none against AI Chat Assistant's shown. Document Signer also leads on review sentiment (75% vs 41%) and rating (4.7 vs 4.3). AI Chat Assistant's advantage is ratings volume (739 vs 26). On price, update cadence, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Document Signer sells 4 in-app purchases, starting at $4.99 per 7 days and AI Chat Assistant sells 10 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Document Signer holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: AI Chat Assistant has 739 ratings behind it against 26, so its average is the more settled of the two. Written reviews point the same way: 75% of Document Signer's written reviews are positive against 41% of AI Chat Assistant's.

UpkeepUpdate frequency

Document Signer ships an update every 9 days, AI Chat Assistant weekly. The most recent releases landed on October 7, 2026 and October 18, 2026 respectively.

Scorecard5 real differences · 5 level
Document Signer versus AI Chat Assistant: the parameters behind the verdict, then further details
ParameterDocument SignerAI Chat Assistant
PriceFreeFree
Rating4.7 (26 ratings) — better4.3 (739 ratings)
Positive reviews75.0% of reviews — better40.6% of reviews
Number of ratings26739 — better
Update frequencyEvery 9 daysWeekly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better18.0
Further details — not scored
Size47 MB56 MB
Age rating4+17+
DeveloperZion Studios LLCDeepGronk AI LLC

Customer experience

Document Signer

All ratings26 ratings
Positive92.3%
Neutral3.8%
Negative3.8%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

AI Chat Assistant

All ratings739 ratings
Positive80.6%
Neutral3.7%
Negative15.7%
Written reviews64 reviews
Positive40.6%
Neutral14.1%
Negative45.3%

Bugs and requests

Document Signer

Not enough reviews yet to summarise bugs or requests.

AI Chat Assistant

Reported bugs

13 issues
  • Poor spelling and grammar
  • Phrases make no sense
  • App not working
  • Image generation error
  • Cannot restore purchase
Show 8 more
  • App crashes on message send
  • Missing chats after update
  • Cannot find history of created photos
  • App not working after payment
  • Voice assistant stopped working
  • Login issues
  • Auto-scroll cannot be turned off
  • Free trial not working as advertised

Requested features

7 requests
  • Allow users to use features by watching ads
  • Lower subscription price
  • Improve voice integration
  • Add dark mode option
  • Improve UI for different AI models
Show 2 more
  • Allow photo upload for AI analysis
  • More advanced features

In-app purchases

4 purchases

Document Signer

Subscriptions3
  • Pro Weekly Subscription3 Days trial$4.997 Days
  • Pro Monthly Subscription3 Days trial$12.991 Month
  • Pro Yearly Subscription3 Days trial$59.991 Year
One-time1
  • Lifetime SimpleSign Offer$69.99
10 purchases

AI Chat Assistant

Subscriptions6
  • ChatONE AI Pro Subscription$6.997 Days
  • ChatONE AI Pro Subscription$14.991 Month
  • ChatONE AI Pro Subscription2 variants$19.992 Months
Show 3 more
  • ChatONE AI Pro Subscription$29.996 Months
  • ChatONE AI Pro Subscription$49.991 Year
  • ChatONE AI Pro Subscription$54.991 Year
One-time4
  • 10k Imagizo Credits$9.99
  • 30k Imagizo Credits$19.99
  • 100k Imagizo Credits$49.99
Show 1 more
  • ChatONE AI Lifetime$199.99

Questions

Is Document Signer free?
Document Signer is free to download, with in-app purchases available.
Is AI Chat Assistant free?
AI Chat Assistant is free to download, with in-app purchases available.
Which has better reviews, Document Signer or AI Chat Assistant?
Document Signer is rated higher. Document Signer averages 4.7 out of 5 from 26 ratings, while AI Chat Assistant averages 4.3 from 739 ratings.
Do Document Signer or AI Chat Assistant have ads?
AI Chat Assistant shows ads; Document Signer does not.
Which is updated more often, Document Signer or AI Chat Assistant?
Document Signer ships an update every 9 days, and AI Chat Assistant weekly. Most recently, Document Signer was updated on October 7, 2026 and AI Chat Assistant on October 18, 2026.

Other comparisons