Comparison

Smart Group vs PDF Scanner

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

Head to head
About

Smart Group

Automatically organize contacts into dynamic groups based on custom criteria. Send emails and text messages to these smart groups instantly. Manage distribution lists and utilize customized templates for efficient communication.

Highlights
  • Automatic smart group creation
  • Send group SMS/Text and Email
  • Assign contacts to multiple groups
  • Customized templates and signatures
  • Distribution list management
Features
Currently charting
Read full description

This app lets you  organizing contacts automatically by creating smart groups.  A Smart Group is updated automatically based on criteria you specify. You can send email and text/sms to smart groups on the fly. Feature list: Send Group SMS/Text and Email Assign contacts to multiple groups at a time Support customized templates and signatures Support distribution list management Manage Smart Groups Smart Groups can automatically organizing information in your address book. The possibilities are endless with Smart Groups. They can be used on any of the criteria stored and will auto-update whenever a change is made.

About

PDF Scanner

Easily convert paper documents into searchable PDFs or JPGs with automatic cropping and enhancement. Features include OCR text recognition, smart filters, and batch scanning for efficient document management. Share your scanned files directly to various platforms and cloud services.

Highlights
  • One-tap scanning with auto edge detection
  • Scan to PDF or JPG (single/multi-page)
  • OCR text recognition for searchable PDFs
  • Smart filters (Color, B/W, Greyscale)
  • Batch scan and reorder pages
  • Export and share to cloud drives
Features
Read full description

Turn paper into a clean, searchable PDF in seconds. Optic is a fast PDF scanner and doc scanner built for people who just want the file done. Capture, auto-crop, enhance, and export with almost zero thinking. KEY FEATURES • One-tap scanning with fast auto edge detection • Scan to PDF or JPG, single or multi-page • OCR text recognition for searchable PDFs and copyable text • Smart filters: Color, B/W, Greyscale, High-contrast • Fix perspective and straighten pages for a “flat” look • Batch scan and reorder pages in seconds • Export and share: Files, Mail, Messages, AirDrop, cloud drives • Create compact PDFs that stay crisp and easy to share MADE FOR Receipts, invoices, contracts, books, notes, forms, ID cards, whiteboards, and school handouts. PRIVACY BY DESIGN Your documents are yours. We’re built to minimize data collection and keep scanning simple. Upgrade note: Some advanced features (like Auto-Scan, unlimited OCR and exports) may require a subscription, depending on your plan. By using this app, you agree to the standard Apple Terms of Use (EULA). Privacy Policy: https://pdf-scanner.app/privacypolicy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: support@pdf-scanner.app

Screenshots

Smart Group4 screens
PDF Scanner4 screens

Verdict

The call

The clearest difference is price: PDF Scanner at Free against Smart Group's $7.99. PDF Scanner also leads on rating (5.0 vs 4.3) and update cadence (every 5 days vs every 4 months). Smart Group's advantage is in-app purchases (none vs 2) and ratings volume (64 vs 1). On ads 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

PDF Scanner is free to download; Smart Group costs $7.99 up front. PDF Scanner sells 2 in-app purchases, starting at $3.99 per month. Smart Group asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PDF Scanner holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Smart Group has 64 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Smart Group ships an update every 4 months, PDF Scanner every 5 days. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

Scorecard9 real differences · 2 level
Smart Group versus PDF Scanner: the parameters behind the verdict, then further details
ParameterSmart GroupPDF Scanner
Price$7.99Free — better
Rating4.3 (64 ratings)5.0 (1 ratings) — better
Positive reviews32.6% of reviews—
Number of ratings64 — better1
Update frequencyEvery 4 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
Best chart rank#158 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better17.6
Further details — not scored
Size40 MB4 MB
Age rating4+4+
DeveloperShan Shan LiuSUNG HSIANG CHAO

In-app purchases

None

Smart Group

No in-app purchases

2 purchases

PDF Scanner

Subscriptions2
  • Optic Premium Monthly$3.991 Month
  • Optic Premium Yearly$29.991 Year

Questions

Is Smart Group free?
Smart Group costs $7.99, with no in-app purchases.
Is PDF Scanner free?
PDF Scanner is free to download, with in-app purchases available.
Which has better reviews, Smart Group or PDF Scanner?
PDF Scanner is rated higher. Smart Group averages 4.3 out of 5 from 64 ratings, while PDF Scanner averages 5.0 from 1 ratings.
Do Smart Group or PDF Scanner have ads?
Neither Smart Group nor PDF Scanner shows ads.
Which is updated more often, Smart Group or PDF Scanner?
Smart Group ships an update every 4 months, and PDF Scanner every 5 days. Most recently, Smart Group was updated on November 6, 2026 and PDF Scanner on October 30, 2026.

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