# Calculator Pro 100% vs Dewpoint Rooms

The clearest difference is price: Calculator Pro 100% at Free against Dewpoint Rooms's $3.99. Calculator Pro 100% also leads on iOS requirement (12.0 vs 17.0). Dewpoint Rooms's advantage is ads (none vs shown) and update cadence (every 10 days vs every 3 weeks). On in-app purchases and device support there is nothing between them.

Calculator Pro 100% is free to download; Dewpoint Rooms costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Calculator Pro 100% ships an update every 3 weeks, Dewpoint Rooms every 10 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Calculator Pro 100% | Dewpoint Rooms |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Ad-supported | — |
| Size | 18 MB | 69 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Fabio Giuliani](https://appshunter.io/developer/1333671865) | [Robert Corbin](https://appshunter.io/developer/1890247992) |

## What reviewers say

### Calculator Pro 100%

[App page](https://appshunter.io/ios/app/calculator-pro-100/id1609224179)

A practical and functional scientific calculator designed for iPad. It allows users to save and reuse previous calculations, displays partial results, and shows the current expression for clarity. This app is completely free to use.

**Highlights:** Scientific calculator functionality, Save and reuse calculations, Supports various operations, Shows partial results, Displays current expression

**Features:** macOS Compatibility

**In-app purchases:** none


### Dewpoint Rooms

[App page](https://appshunter.io/ios/app/dewpoint-rooms/id6771020162)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator Pro 100% free?

Calculator Pro 100% is free to download, with no in-app purchases.

### Is Dewpoint Rooms free?

Dewpoint Rooms costs $3.99, with no in-app purchases.

### Do Calculator Pro 100% or Dewpoint Rooms have ads?

Calculator Pro 100% shows ads; Dewpoint Rooms does not.

### Which is updated more often, Calculator Pro 100% or Dewpoint Rooms?

Calculator Pro 100% ships an update every 3 weeks, and Dewpoint Rooms every 10 days. Most recently, Calculator Pro 100% was updated on November 3, 2026 and Dewpoint Rooms on October 31, 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.*