# Calculator Pro vs Langify

The clearest difference is ads: Langify at none against Calculator Pro's shown. Langify also leads on update cadence (every 3 days vs fortnightly) and device support (3 vs 1). On price 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 Langify sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Calculator Pro ships an update fortnightly, Langify every 3 days. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Calculator Pro | Langify |
| --- | --- | --- |
| 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 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 28 MB | 54 MB |
| Requires iOS | 18.5 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [嘉晨 王](https://appshunter.io/developer/1780248506) | [Komal Gangani](https://appshunter.io/developer/1854018266) |

## 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 |


### Langify

[App page](https://appshunter.io/ios/app/langify-ai-language-tutor/id6759826350)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter | $12.99 | one-time |
| Most Popular Choise | $24.99 | one-time |
| Save More | $39.99 | one-time |


## Frequently asked questions

### Is Calculator Pro free?

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

### Is Langify free?

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

### Do Calculator Pro or Langify have ads?

Calculator Pro shows ads; Langify does not.

### Which is updated more often, Calculator Pro or Langify?

Calculator Pro ships an update fortnightly, and Langify every 3 days. Most recently, Calculator Pro was updated on October 25, 2026 and Langify on October 27, 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.*