# Calculator⁼ vs Calculator HD Pro

Calculator⁼ and Calculator HD Pro both sit at 4.6 stars, but that hides the real split: 95% of Calculator HD Pro's written reviews are positive against 36% of Calculator⁼'s. Calculator HD Pro also leads on ads (none vs shown). Calculator⁼'s advantage is price (Free vs $9.99) and ratings volume (359K vs 11K). On rating, update cadence, in-app purchases and monetization model there is nothing between them.

Calculator⁼ is free to download; Calculator HD Pro costs $9.99 up front. Calculator⁼ sells 8 in-app purchases, starting at $0.49 per 7 days and Calculator HD Pro sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Calculator HD Pro holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Calculator⁼ has 359K ratings behind it against 11K, so its average is the more settled of the two. Written reviews point the same way: 36% of Calculator⁼'s written reviews are positive against 95% of Calculator HD Pro's.

Calculator⁼ ships an update monthly, Calculator HD Pro every 2 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | Calculator⁼ | Calculator HD Pro |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [4.6 (359K ratings)](https://appshunter.io/ios/app/calculator/id487127942/reviews) | **[4.8 (11K ratings)](https://appshunter.io/ios/app/calculator-hd-pro/id565023649/reviews)** |
| Number of ratings | **359K** | 11K |
| Positive reviews | 35.6% of reviews | **94.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 159 MB | 48 MB |
| Requires iOS | **15.0** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Impala Studios](https://appshunter.io/developer/1063279743) | [Cider Software LLC](https://appshunter.io/developer/465180756) |

## What reviewers say

### Calculator⁼

[App page](https://appshunter.io/ios/app/calculator/id487127942)

This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.

**Highlights:** Basic & Scientific Calculator, Live Currency Converter, History Tape, Equation Edit Function, Degrees or Radians Calculation, Memory Banks

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Access | $0.49 | per 7 days |
| Monthly full access | $1.99 | per month |
| Weekly Premium Access | $1.99 | per 7 days |
| Limited Time Offer | $4.99 | per year |
| Premium Yearly | $5.99 | per year |
| Annual Premium Access | $9.99 | per year |
| Retro Theme Calculator' | $0.99 | one-time |
| Lifetime Full Access | $14.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 📊 Helpful history feature
- 💻 Versatile (basic and scientific)
- 🔍 Clear display and large buttons

**What reviewers complain about**

- 🤖 Intrusive and excessive ads
- 💰 Subscription model for ad-free version
- 🔄 Ads interrupting calculations
- 🕰️ Slow performance due to ads

**Reported bugs**

- History not always showing all entries
- Ads covering up parts of the screen
- Inability to close full-screen ads

**Requested features**

- Add fraction button
- Option to clear calculation history
- Ability to copy/paste results
- Customizable layout and themes


### Calculator HD Pro

[App page](https://appshunter.io/ios/app/calculator-hd-pro/id565023649)

This app offers a powerful and customizable calculator experience with a dual-line display for seeing input and results simultaneously. Save and organize your calculations with history, labeling, and email options. Personalize layouts, themes, and fonts for a comfortable and efficient user experience.

**Highlights:** Dual-line display, Multi-line input, Calculation history, Customizable layouts and themes, Full scientific functions, Left-handed mode, VoiceOver accessibility

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Widget | $1.99 | one-time |
| Multiple History Tapes | $1.99 | one-time |

**What reviewers like**

- 🚀 Significantly better than Apple's calculator
- 👍 Excellent app with great features
- 👍 Flawless app, very useful
- 👍 Fantastic calculator, meets all needs
- 👍 Best calculator app, highly recommended

**What reviewers complain about**

- 🐛 Bothersome pop-up review requests
- 🐛 Cannot delete lists in history tapes
- 🐛 Repeated rate and review pop-ups

**Reported bugs**

- Cannot delete lists in history tapes
- Ads still appear after purchasing full version

**Requested features**

- Add binary, decimal, and hex conversion
- Ability to manually sort result lines
- Add a tax calculation button


## Frequently asked questions

### Is Calculator⁼ free?

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

### Is Calculator HD Pro free?

Calculator HD Pro costs $9.99, and also offers in-app purchases.

### Which has better reviews, Calculator⁼ or Calculator HD Pro?

Calculator HD Pro is rated higher. Calculator⁼ averages 4.6 out of 5 from 359K ratings, while Calculator HD Pro averages 4.8 from 11K ratings.

### Do Calculator⁼ or Calculator HD Pro have ads?

Calculator⁼ shows ads; Calculator HD Pro does not.

### Which is updated more often, Calculator⁼ or Calculator HD Pro?

Calculator⁼ ships an update monthly, and Calculator HD Pro every 2 months. Most recently, Calculator⁼ was updated on November 1, 2026 and Calculator HD Pro on November 1, 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.*