# Flex Scanner vs Calculator

The clearest difference is review sentiment: Calculator at 100% against Flex Scanner's 33%. Calculator also leads on rating (5.0 vs 4.5) and iOS requirement (12.0 vs 15.0). Flex Scanner's advantage is update cadence (every 9 days vs every 3 weeks) and ratings volume (24 vs 4). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Flex Scanner sells 3 in-app purchases, starting at $0.99 per 7 days and Calculator sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Calculator holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Flex Scanner has 24 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 33% of Flex Scanner's written reviews are positive against 100% of Calculator's.

Flex Scanner ships an update every 9 days, Calculator every 3 weeks. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Flex Scanner | Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (24 ratings)](https://appshunter.io/ios/app/flex-scanner-pdf-scanner/id1521904431/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/calculator-currency-unit/id1583572133/reviews)** |
| Number of ratings | **24** | 4 |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Freemium | Free with in-app purchases |
| Size | 32 MB | 19 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Coftivo Teknoloji LTD](https://appshunter.io/developer/1730111773) | [hua-shan cheng](https://appshunter.io/developer/1019388170) |

## What reviewers say

### Flex Scanner

[App page](https://appshunter.io/ios/app/flex-scanner-pdf-scanner/id1521904431)

Transform your smartphone into a portable scanner with advanced OCR technology. Capture, store, and share documents in various formats like PDF, JPG, and TXT. Organize, edit, and secure your files with ease.

**Highlights:** Mobile document scanning, OCR text recognition, Multiple export formats (PDF, JPG, TXT), Document collaboration and sharing, File organization and password protection, Electronic signature integration

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $0.99 | per 7 days |
| Monthly | $1.99 | per month |
| Life Time | $9.99 | one-time |


### Calculator

[App page](https://appshunter.io/ios/app/calculator-currency-unit/id1583572133)

This versatile tool combines a scientific calculator with currency and unit conversion capabilities. It offers a history manager, full editing options, and an intuitive interface for school, work, and daily tasks. Supports offline currency conversion.

**Highlights:** Scientific calculator functions, Currency converter with 37 currencies, Unit converter with 181 units, History manager for calculations, Offline currency conversion, Full editing options (undo/redo)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock iPad Landscape | $0.99 | one-time |
| Unlock History | $0.99 | one-time |


## Frequently asked questions

### Is Flex Scanner free?

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

### Is Calculator free?

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

### Which has better reviews, Flex Scanner or Calculator?

Calculator is rated higher. Flex Scanner averages 4.5 out of 5 from 24 ratings, while Calculator averages 5.0 from 4 ratings.

### Do Flex Scanner or Calculator have ads?

Neither Flex Scanner nor Calculator shows ads.

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

Flex Scanner ships an update every 9 days, and Calculator every 3 weeks. Most recently, Flex Scanner was updated on October 24, 2026 and Calculator on October 18, 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.*