Comparison

Fast Scan vs PDF

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

Head to head
About

Fast Scan

Transform your phone into a powerful scanner and AI assistant. Quickly digitize documents, identify objects, plants, and animals, and translate text in real-time. Manage your work and life more efficiently with this fun and intuitive app.

Highlights
  • AI object, plant, and animal identification
  • Real-time recognition results
  • Multi-language translation and voice reading
  • Document and ID scanning
  • Automatic edge correction and trimming
  • Text translation for browsing and travel
Features
Read full description

The Fast Scan is the most satisfying scanner app you've ever seen. Who says the scanner app must be boring? Scanner can help you better manage your work and life in a more fun way. Not only can you quickly process files, set up work reminders, but you can also discover new worlds by scanning around things and identifying objects, and you can use the Fast Scan for entertainment when you are free. ▷ Powerful AI Recognition Function When you see an unknown object/animal/plant at work or in life, is it annoying that no one can tell you what it is? What is its name? how to use? Now you can use AI Scanner to see what it is anytime, anywhere! Features: • Supports the identification of common objects, plants, animals, fruits and vegetables. • Real-time output recognition results • Support multi-language translation and voice reading Come and discover the interesting things around you! ▷Powerful document scan & ID scan function Printing important documents is cumbersome and easy to lose. Especially for those working in the office, the types of documents are complex and many, and keeping them is a headache. Now, you can use the scanner to easily convert it into an electronic document. Just align the document with a single tap, and it will automatically correct and trim the edges for you, and it will be retained in electronic format. At this point, Fast Scan -- the portable scanner is your best choice! It can automatically edit and output clear images or documents by simply clicking on the capture button, which helps you save 90% of the time compared to a large scanner. ▷Text translation When traveling abroad, I always want to bring some local specialties to my relatives and friends, but when I arrive at the supermarket, I feel embarrassed because I don't know the local language.It will be more convenient if accompanied by a local translator. But now,i don't need to worry, The Fast Scan's translation feature allows me to translate everything in real time.Language barriers no longer exist. Text translation allows me to know the world events better while browsing the news. ▷ Fast Scan has the following subscriptions: Weekly subscription: 3 days free trial, then $1.99/week, auto-renewing Monthly Subscription: 3 days free trial, then $4.99/month,auto-renewing Yearly Subscription: 3 days free trial, then $29.99/year,auto-renewing Payment will be deducted from your iTunes account upon confirmation of purchase. Subscriptions will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current subscription period. Your account will be charged with the subscription renewal fee within 24 hours prior to the end of the current subscription period at the rate confirmed by you. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings. Terms of Use : https://sites.google.com/view/scannerios-users-en Privacy Policy: https://sites.google.com/view/scannerios-policy-en We would love to hear your feedback! Please provide us with your feedback and suggestions. We will improve the app based on your comments and provide you with a better experience with using our app. Our Email:sscannerdev@gmail.com

About

PDF

Easily scan documents and convert images into PDF files directly from your iPhone or iPad. Organize your scanned documents for later use and share them conveniently from anywhere.

Highlights
  • Scan documents on the go
  • Convert images to PDF
  • Build single or separate PDFs
  • Save and share PDFs
  • Store scanned files for later
Read full description

Just a simple app that can scan documents and convert images to PDF. Save and share it anywhere, anytime. You no longer need to find a scanner, now you can scan documents on the go just using your iPhone or iPad. You can build single PDF from all documents scanned or build PDFs separately. All scanned files will be stored on the Scanner page so you can continue work with them later.

Screenshots

Fast Scan4 screens
PDF4 screens

Verdict

The call

The clearest difference is review sentiment: PDF at 89% against Fast Scan's 11%. PDF also leads on rating (4.8 vs 3.5) and monetization model (free with in-app purchases vs subscription). Fast Scan's advantage is iOS requirement (10.0 vs 13.0). On price, ratings volume, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Fast Scan sells 10 in-app purchases, starting at $1.99 per 7 days and PDF sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

PDF holds the better App Store score, 4.8 against 3.5. Both are backed by a comparable volume of ratings — 321 and 115 respectively. Written reviews point the same way: 11% of Fast Scan's written reviews are positive against 89% of PDF's.

UpkeepUpdate frequency

Fast Scan ships an update every 5 weeks, PDF fortnightly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
Fast Scan versus PDF: the parameters behind the verdict, then further details
ParameterFast ScanPDF
PriceFreeFree
Rating3.5 (321 ratings)4.8 (115 ratings) — better
Positive reviews10.7% of reviews89.5% of reviews — better
Number of ratings321 — better115
Update frequencyEvery 5 weeksFortnightly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.0 — better13.0
Further details — not scored
Size214 MB90 MB
Age rating4+4+
DeveloperShenzhen Zhongcheng World Information Technology Co., LtdNikita Khromov

Customer experience

Fast Scan

All ratings321 ratings
Positive64.2%
Neutral1.6%
Negative34.3%
Written reviews112 reviews
Positive10.7%
Neutral2.7%
Negative86.6%

PDF

All ratings115 ratings
Positive96.5%
Neutral1.7%
Negative1.7%
Written reviews19 reviews
Positive89.5%
Neutral5.3%
Negative5.3%

Bugs and requests

Fast Scan

Reported bugs

7 issues
  • Inaccurate object identification (e.g., dog identified as sea lion, plant as bamboo)
  • Misidentification of colors and basic items
  • App crashes or fails to load properly
  • Pop-up ads appear every 30 seconds making app unusable
  • Automatic billing without user confirmation
Show 2 more
  • Charges continue after app deletion
  • Incorrect animal/plant species recognition

Requested features

8 requests
  • Make core features available for free or with optional premium features
  • Implement transparent pricing displayed upfront in app store
  • Add extended free trial period before requiring payment
  • Improve object recognition accuracy
  • Reduce frequency of upgrade pop-ups
Show 3 more
  • Add settings menu for managing subscription prompts
  • Provide easy subscription cancellation process
  • Include phone support for customer service

PDF

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Fast Scan

Subscriptions10
  • Scanner Subscription3 Days trial$1.997 Days
  • Scanner Subscription3 Days trial$4.991 Month
  • Unlock all features for 1 week3 Days trial$6.997 Days
Show 7 more
  • Unlock all features for 1 week3 Days trial$7.997 Days
  • Unlock all features for 1 week$7.997 Days
  • VIP features(Lite) for 1month3 Days trial$9.991 Month
  • Scanner Subscription$9.991 Month
  • Unlock all features for 1month3 Days trial$19.991 Month
  • Unlock all features for 1 year3 Days trial$89.991 Year
  • Unlock all features for 1 year$89.991 Year
3 purchases

PDF

Subscriptions3
  • 1 week$0.997 Days
  • 1 month$1.491 Month
  • 1 year$9.991 Year

Questions

Is Fast Scan free?
Fast Scan is free to download, with in-app purchases available.
Is PDF free?
PDF is free to download, with in-app purchases available.
Which has better reviews, Fast Scan or PDF?
PDF is rated higher. Fast Scan averages 3.5 out of 5 from 321 ratings, while PDF averages 4.8 from 115 ratings.
Do Fast Scan or PDF have ads?
Fast Scan shows ads; PDF does not.
Which is updated more often, Fast Scan or PDF?
Fast Scan ships an update every 5 weeks, and PDF fortnightly. Most recently, Fast Scan was updated on November 2, 2026 and PDF on November 3, 2026.

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