# Smart PDF Document Scanner vs NNA Conference

The clearest difference is review sentiment: Smart PDF Document Scanner at 100% against NNA Conference's 0%. Smart PDF Document Scanner also leads on rating (4.4 vs 3.2). NNA Conference's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Smart PDF Document Scanner holds the better App Store score, 4.4 against 3.2. Both are backed by a comparable volume of ratings — 10 and 10 respectively. Written reviews point the same way: 100% of Smart PDF Document Scanner's written reviews are positive against 0% of NNA Conference's.

Smart PDF Document Scanner ships an update every 6 months, NNA Conference every 11 months. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Smart PDF Document Scanner | NNA Conference |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (10 ratings)](https://appshunter.io/ios/app/smart-pdf-document-scanner/id1181147140/reviews)** | [3.2 (10 ratings)](https://appshunter.io/ios/app/nna-conference/id6448891198/reviews) |
| Number of ratings | 10 | 10 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 months** | Every 11 months |
| Monetization | Ad-supported | **Free** |
| Size | 11 MB | 62 MB |
| Requires iOS | 16.6 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Qrayon, LLC](https://appshunter.io/developer/354980265) | [NNA SERVICES, LLC](https://appshunter.io/developer/1356274712) |

## What reviewers say

### Smart PDF Document Scanner

[App page](https://appshunter.io/ios/app/smart-pdf-document-scanner/id1181147140)

Transform your phone into a powerful document scanner. Capture, enhance, and organize your important papers with tack-sharp scans and a color-coded tagging system. Easily share PDFs for business or personal use.

**Highlights:** Tack-sharp document scanning, Automatic edge detection and perspective correction, Color, grayscale, and black-and-white scan options, FlashAssist for low-light scanning, Color-coded tagging system for organization, Quickly scan and share PDFs

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### NNA Conference

[App page](https://appshunter.io/ios/app/nna-conference/id6448891198)

This official conference application allows attendees to create personalized schedules, network with other participants, and discover exhibitors. It serves as a central hub for all conference-related information and activities.

**Highlights:** Build personalized schedules, Connect with attendees, Discover exhibitors, Access conference information, View event details

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Smart PDF Document Scanner free?

Smart PDF Document Scanner is free to download, with no in-app purchases.

### Is NNA Conference free?

NNA Conference is free to download, with no in-app purchases.

### Which has better reviews, Smart PDF Document Scanner or NNA Conference?

Smart PDF Document Scanner is rated higher. Smart PDF Document Scanner averages 4.4 out of 5 from 10 ratings, while NNA Conference averages 3.2 from 10 ratings.

### Do Smart PDF Document Scanner or NNA Conference have ads?

Smart PDF Document Scanner shows ads; NNA Conference does not.

### Which is updated more often, Smart PDF Document Scanner or NNA Conference?

Smart PDF Document Scanner ships an update every 6 months, and NNA Conference every 11 months. Most recently, Smart PDF Document Scanner was updated on October 11, 2026 and NNA Conference on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*