# Calculator Pro vs iPDF Converter

The clearest difference is ads: iPDF Converter at none against Calculator Pro's shown. iPDF Converter also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.5). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Calculator Pro sells 2 in-app purchases, starting at $4.99 per 7 days and iPDF Converter sells 4 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Calculator Pro ships an update fortnightly, iPDF Converter every 2 weeks. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Calculator Pro | iPDF Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (62 ratings)](https://appshunter.io/ios/app/calculator-pro-smart-tools/id6751831649/reviews)** | — |
| Number of ratings | **62** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 28 MB | 64 MB |
| Requires iOS | 18.5 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [嘉晨 王](https://appshunter.io/developer/1780248506) | [Rashmi Varsani](https://appshunter.io/developer/1749930901) |

## What reviewers say

### Calculator Pro

[App page](https://appshunter.io/ios/app/calculator-pro-smart-tools/id6751831649)

This app offers a comprehensive suite of tools, including scientific calculations, real-time currency exchange rates, unit conversions, and financial calculators for loans and mortgages. It's designed to simplify everyday tasks, from student homework to travel budgeting.

**Highlights:** Standard & Scientific Calculator, Real-Time Currency Exchange Rates, Unit Converter, Financial Calculators (Loans, Mortgages), Tip & Tax Calculations

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart Calculator Week | $4.99 | per 7 days |
| Smart Calculator NoAds Lift-Time | $12.99 | one-time |


### iPDF Converter

[App page](https://appshunter.io/ios/app/ipdf-converter-pdf-scanner/id6754192721)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $6.99 | per 7 days |
| Week | $6.99 | per 7 days |
| Lifetime 4999 | $49.99 | one-time |
| Lifetime Access | $79.99 | one-time |


## Frequently asked questions

### Is Calculator Pro free?

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

### Is iPDF Converter free?

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

### Do Calculator Pro or iPDF Converter have ads?

Calculator Pro shows ads; iPDF Converter does not.

### Which is updated more often, Calculator Pro or iPDF Converter?

Calculator Pro ships an update fortnightly, and iPDF Converter every 2 weeks. Most recently, Calculator Pro was updated on October 25, 2026 and iPDF Converter on October 26, 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.*