# Scanner vs Boiler Calculator

The clearest difference is price: Scanner at Free against Boiler Calculator's $3.99. Boiler Calculator's advantage is ads (none vs shown) and iOS requirement (12.0 vs 15.0). On review sentiment, update cadence, in-app purchases and device support there is nothing between them.

Scanner is free to download; Boiler Calculator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scanner ships an update every 51 months, Boiler Calculator every 35 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | Scanner | Boiler Calculator |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 51 months | **Every 35 months** |
| Monetization | **Ad-supported** | Paid |
| Size | 25 MB | 2 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aishvarya Sadasivam](https://appshunter.io/developer/1062048241) | [Bhavinkumar Satashiya](https://appshunter.io/developer/1361485921) |

## What reviewers say

### Scanner

[App page](https://appshunter.io/ios/app/scanner-live-pdf-document/id1080207201)

Instantly scan multi-page documents and send them digitally when a physical scanner isn't available. Capture anything from receipts to books, with features for cropping, brightness adjustment, and saving in color or grayscale. Share via email or print directly.

**Highlights:** Scan multi-page documents, Capture whiteboards, receipts, business cards, Crop and remove unnecessary parts, Adjust brightness for low light, Save in color or grayscale, Share via email, Print via AirPrint

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

**In-app purchases:** none


### Boiler Calculator

[App page](https://appshunter.io/ios/app/boiler-calculator-tracecalc/id1449806152)

This utility app helps boilermakers quickly calculate boiler facing areas and trace complex cylindrical curves. It simplifies intricate measurements, saving time and materials for professionals.

**Highlights:** Calculate boiler facing area, Trace cylindrical curves, Handle 90° intersections, Streamline complex measurements, Intuitive user interface, In-app guidance

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

**In-app purchases:** none


## Frequently asked questions

### Is Scanner free?

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

### Is Boiler Calculator free?

Boiler Calculator costs $3.99, with no in-app purchases.

### Do Scanner or Boiler Calculator have ads?

Scanner shows ads; Boiler Calculator does not.

### Which is updated more often, Scanner or Boiler Calculator?

Scanner ships an update every 51 months, and Boiler Calculator every 35 months. Most recently, Scanner was updated on November 2, 2026 and Boiler Calculator on November 2, 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.*