Comparison

Scan PDF-Convert Document vs Dou Chat:Smart Image

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

Head to head
About

Scan PDF-Convert Document

Transform your phone into a powerful document scanner. Effortlessly scan, merge, and organize documents into high-quality PDFs. Convert images to PDFs and share them easily.

Highlights
  • Scan unlimited documents
  • Merge multiple images into one document
  • Convert pictures to PDFs
  • Create PDFs from scanned documents
  • Organize documents with folders
  • Share scanned documents via email
  • Save to cloud storage
Features
Read full description

Scan PDF -Convert Document is your ultimate document management tool! Transform your Phone into a powerful scanner app for documents and enjoy seamless scanning, merging, and organizing.  Start with a 3-day free trial and unlock all features for just $29.99 per year after the trial. Key Features with monthly subscription: • Scan Documents: Effortlessly scan unlimited documents and convert them into high-quality PDFs with our intuitive mobile scanner. • Document Merging: Combine multiple images into one document and easily add your favorite files for quick access. • Convert Picture to PDF: Use our picture scanner feature to convert images to PDFs with just a tap. • PDF Creator: Create PDFs from scanned documents or images using our PDF convert functionality. • Folder Organization: Create folders to organize your scanned documents for easy access. • Fast & Efficient: Experience rapid scanning with support for formats like JPG, PNG, and PDF in our document scanner app. • Easy Sharing: Quickly share your scanned documents via email or save them to cloud storage with our scan to email feature. • User-Friendly Interface: Designed for all users, our scanning app makes document management simple and efficient. • Subscription-Based Access: After your 3-day free trial, enjoy all features for just $29.99 per year, with subscriptions managed by Apple. Scan PDF -Convert Document for their scanning needs. Download now. Subscription Information: • Subscription options currently just monthly, you will be able to scan and share unlimited documents and merge them. • Your iTunes Account will be charged with the payment after purchase confirmation • Subscription will be automatically renewed at least 24 hours before the end of the current period. Auto-renewal can be manually turned off in the corresponding settings. • User can manage the subscriptions. Auto-renewal can be deactivated in the Account Settings after a successful purchase. Privacy Policy: https://sites.google.com/view/scanpdffreeconvertdocument/privacy-policy Terms of Use: https://sites.google.com/view/scanpdffreeconvertdocument/terms-of-use Please refer to EULA here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ If you have any questions or suggestions, we are always ready to help: wallpapestudio@gmail.com

About

Dou Chat:Smart Image

Features
Read full description

Experience a fast, intuitive, and seamless generative AI conversation experience. Whether you need help analyzing images, brainstorming ideas, polishing your writing, translating languages, writing code, or simply having a casual conversation, your personal AI assistant is always ready to help. No complicated setup, no unnecessary hassle—just open the App and start exploring a smarter way to get things done. Creative & Productivity Tools · Ask About Images Snap a photo of a challenging math or geometry problem, science formula, or historical chart. AI can break it down step by step and provide detailed explanations to help you understand the reasoning behind the answer. · Writing Assistant Create engaging social media posts, business emails, speeches, stories and scripts, SEO content, product descriptions, or video scripts. Turn rough ideas into polished content and keep writer’s block from slowing you down. · Language Expert Translate between languages with support for a wide range of languages. Go beyond word-for-word translation with context-aware phrasing, natural business language, long-form summaries, and grammar corrections. · Coding Assistant Get help with algorithms and code in a variety of programming languages. Debug code, understand complex syntax, create technical documentation, or convert existing code from one programming language to another. · Idea Generator Brainstorm startup ideas, come up with brand names, plan trips, develop event concepts, or find creative gift ideas. Turn a rough thought into practical ideas and actionable suggestions. · Work Assistant Quickly create meeting outlines, weekly work reports, resume improvement suggestions, mock interview responses, and business negotiation strategies. Spend less time on repetitive paperwork and more time on what matters. · Knowledge Guide Get clear, easy-to-understand explanations of complex scientific concepts, historical events, and mathematical formulas. Students and researchers can also use AI to organize research materials, structure ideas, summarize information, and explore topics across different fields. · Chat & Conversation Need someone to talk to? Enjoy casual conversations, creative role-playing, or thoughtful discussions whenever you need a break. You can also play text-based puzzles and games or get personalized book and movie recommendations based on your mood. · Temporary Chats Perfect for one-off questions, quick definitions, temporary coding help, or notes you don't need to keep. Temporary conversations help keep your conversation list clean and organized without adding unnecessary local history. Subscription Management All subscriptions and transactions are securely processed through the official Apple App Store. Payment will be charged to your iTunes account when you confirm your purchase. Unless you turn off auto-renewal at least 24 hours before the end of the current billing period, your subscription will automatically renew. You can view, manage, or cancel your subscription at any time through Settings → Apple Account → Subscriptions on your iOS device. Terms of Service https://docs.google.com/document/d/e/2PACX-1vRSFQtjU3J8W2bbTMi2C0MHbg-yadoElfDu9a_2Du3wB3tloCelfMvND5hwzNUukak1QOF8GkKu8OHW/pub Privacy Policy https://docs.google.com/document/d/e/2PACX-1vSOF0N3Zyac0LvhCVtEUB1Y73sGsje1yboQrU4tPnI6tvl1F5ch0Nr3P95JYh_BBM8G9bXinx79bKru/pub

Screenshots

Scan PDF-Convert Document4 screens
Dou Chat:Smart Image4 screens

Verdict

The call

Scan PDF-Convert Document and Dou Chat:Smart Image are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Scan PDF-Convert Document sells 3 in-app purchases, starting at $9.99 per month and Dou Chat:Smart Image sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Scan PDF-Convert Document versus Dou Chat:Smart Image: the parameters behind the verdict, then further details
ParameterScan PDF-Convert DocumentDou Chat:Smart Image
PriceFreeFree
Rating4.7 (134 ratings) — better—
Positive reviews76.2% of reviews—
Number of ratings134 — better—
Update frequencyEvery 4 weeks—
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size11 MB9 MB
Age rating4+4+
DeveloperRavi chandran MMANABU ASO

Bugs and requests

Scan PDF-Convert Document

Reported bugs

5 issues
  • App too quick to scan, affecting aim
  • PDF order displayed reversed when reordering
  • Renamed scanned PDF files retain original name when shared
  • Cannot swap pages after saving a PDF
  • Limited cropping and adjustment options after saving

Requested features

5 requests
  • Allow renaming before saving
  • Improve page reordering functionality
  • Add OCR capabilities
  • Allow swapping pages after saving
  • Improve naming convention for saved PDFs

Dou Chat:Smart Image

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Scan PDF-Convert Document

Subscriptions2
  • Monthly Plan$9.991 Month
  • Yearly Plan3 Days trial$29.991 Year
One-time1
  • Lifetime Plan$29.99
3 purchases

Dou Chat:Smart Image

Subscriptions3
  • 週會員3 Days trial$1.997 Days
  • 月會員3 Days trial$3.991 Month
  • 年會員3 Days trial$12.991 Year

Questions

Is Scan PDF-Convert Document free?
Scan PDF-Convert Document is free to download, with in-app purchases available.
Is Dou Chat:Smart Image free?
Dou Chat:Smart Image is free to download, with in-app purchases available.
Do Scan PDF-Convert Document or Dou Chat:Smart Image have ads?
Neither Scan PDF-Convert Document nor Dou Chat:Smart Image shows ads.

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