# printAR vs Smart Drain Pro

The clearest difference is rating: Smart Drain Pro at 5.0 against printAR's 4.4. Smart Drain Pro also leads on in-app purchases (none vs 1). printAR's advantage is update cadence (every 2 months vs every 5 months) and ratings volume (23 vs 2). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. printAR sells 1 one-off in-app purchase. Smart Drain Pro asks for nothing beyond the download.

Smart Drain Pro holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: printAR has 23 ratings behind it against 2, so its average is the more settled of the two.

printAR ships an update every 2 months, Smart Drain Pro every 5 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | printAR | Smart Drain Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (23 ratings)](https://appshunter.io/ios/app/printar-pdf-documents-in-ar/id1338575027/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/smart-drain-pro/id6739188395/reviews)** |
| Number of ratings | **23** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 58 MB | 23 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Till-Eugen Koenitzer](https://appshunter.io/developer/389424746) | [David Sims](https://appshunter.io/developer/1709824648) |

## What reviewers say

### printAR

[App page](https://appshunter.io/ios/app/printar-pdf-documents-in-ar/id1338575027)

Visualize and interact with PDF documents in augmented reality. Preview designs, collaborate in meetings, and share AR experiences with others. Documents appear at actual size and can be manipulated as if physically present.

**Highlights:** Interact with documents in AR, Preview designs before printing, Shared AR experiences, Horizontal & vertical surface detection, Document manipulation (move, rotate, stack), Actual size document display

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Host a Shared AR Experience | $1.99 | one-time |


### Smart Drain Pro

[App page](https://appshunter.io/ios/app/smart-drain-pro/id6739188395)

Automate water heater valve operations with this Bluetooth-enabled scheduler. Set custom times and days for efficient residue removal and device management in residential and industrial settings.

**Highlights:** Bluetooth device control, Automated scheduling, Customizable day and time programming, Residue removal management, Remote device operation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is printAR free?

printAR is free to download, with in-app purchases available.

### Is Smart Drain Pro free?

Smart Drain Pro is free to download, with no in-app purchases.

### Which has better reviews, printAR or Smart Drain Pro?

Smart Drain Pro is rated higher. printAR averages 4.4 out of 5 from 23 ratings, while Smart Drain Pro averages 5.0 from 2 ratings.

### Do printAR or Smart Drain Pro have ads?

Neither printAR nor Smart Drain Pro shows ads.

### Which is updated more often, printAR or Smart Drain Pro?

printAR ships an update every 2 months, and Smart Drain Pro every 5 months. Most recently, printAR was updated on November 2, 2026 and Smart Drain Pro on November 4, 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.*