# Calculator Pro 100% vs DuoWake

The clearest difference is price: Calculator Pro 100% at Free against DuoWake's $0.99. Calculator Pro 100% also leads on update cadence (every 3 weeks vs every 3 months) and iOS requirement (12.0 vs 17.0). DuoWake's advantage is ads (none vs shown) and review sentiment (50% vs 40%). On in-app purchases and device support there is nothing between them.

Calculator Pro 100% is free to download; DuoWake costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Calculator Pro 100% ships an update every 3 weeks, DuoWake every 3 months. The most recent releases landed on October 15, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Calculator Pro 100% | DuoWake |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | 40.0% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | **Ad-supported** | Paid |
| Size | 18 MB | 97 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Fabio Giuliani](https://appshunter.io/developer/1333671865) | [ibudokan ltd](https://appshunter.io/developer/1818303536) |

## 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


### DuoWake

[App page](https://appshunter.io/ios/app/duowake/id6762351528)

This app offers a gentle wake-up experience by combining customizable sound and light. It allows users to personalize the display, choose from a wide range of alarm tones, or import their own sounds for a natural transition from sleep to wakefulness.

**Highlights:** Gradual sound and light wake-up, Customizable display (size, color, brightness), Nearly 40 built-in alarm tones, Import custom alarm sounds, Adaptive brightness for sleep, Intuitive user experience

**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 DuoWake free?

DuoWake costs $0.99, with no in-app purchases.

### Do Calculator Pro 100% or DuoWake have ads?

Calculator Pro 100% shows ads; DuoWake does not.

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

Calculator Pro 100% ships an update every 3 weeks, and DuoWake every 3 months. Most recently, Calculator Pro 100% was updated on October 15, 2026 and DuoWake on October 21, 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.*