# Calculator # vs Calculator HD Pro Lite

The clearest difference is in-app purchases: Calculator HD Pro Lite at none against Calculator #'s 6. Calculator HD Pro Lite also leads on review sentiment (77% vs 60%). Calculator #'s advantage is iOS requirement (12.1 vs 15.2). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Calculator # sells 6 in-app purchases, starting at $1.49 per month. Calculator HD Pro Lite asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Calculator # against 4.6 for Calculator HD Pro Lite. Both are backed by a comparable volume of ratings — 36K and 52K respectively. Written reviews are what separate them: 60% of Calculator #'s written reviews are positive against 77% of Calculator HD Pro Lite's.

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | Calculator # | Calculator HD Pro Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (36K ratings)](https://appshunter.io/ios/app/calculator/id458535080/reviews) | **[4.6 (52K ratings)](https://appshunter.io/ios/app/calculator-hd-pro-lite/id571121141/reviews)** |
| Number of ratings | 36K | **52K** |
| Positive reviews | 59.5% of reviews | **77.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 57 MB | 47 MB |
| Requires iOS | **12.1** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Incpt.Mobis](https://appshunter.io/developer/445261166) | [Cider Software LLC](https://appshunter.io/developer/465180756) |

## What reviewers say

### Calculator #

[App page](https://appshunter.io/ios/app/calculator/id458535080)

This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.

**Highlights:** Math Photos Solver, Handwriting Recognition, AI Math Problem Solver, Mathematical Display, Equation Solvers, 2D Graphing, Algebraic Functions

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Upgrade 1 Month | $1.49 | per month |
| PRO Upgrade 3 Months | $2.99 | per 3 months |
| PRO + Recognition 1 Month | $4.99 | per month |
| PRO + Recognition 3 Months | $11.99 | per 3 months |
| 250 AI Recognition & Queries | $0.99 | one-time |
| 600 AI Recognition & Queries | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Powerful functionality
- 💡 Helpful for math classes
- ⭐ Great for students
- 👌 Works like a real calculator

**What reviewers complain about**

- 🔍 Confusing interface after update
- 📢 Too many intrusive ads
- 💰 Paywall for advanced features
- 🐛 Incorrect calculations
- 🔇 Loud audio ads

**Reported bugs**

- Crashes when trying to use certain functions
- Handwriting recognition not working reliably
- Inability to input negative numbers

**Requested features**

- Add option to turn off animation
- Improve ad placement to avoid obstructing usage
- Provide more transparency on paid features


### Calculator HD Pro Lite

[App page](https://appshunter.io/ios/app/calculator-hd-pro-lite/id571121141)

This app offers a user-friendly calculator with large buttons and extensive customization options. It features a dual-line display to see input and results simultaneously, saves your calculation history, and provides full scientific functions. Personalize layouts, themes, and even button symbols to suit your needs.

**Highlights:** Dual-line display, Calculation history, Full scientific functions, Customizable layouts and themes, Big buttons, Email history

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 📝 Keeps calculation history
- 💡 Customizable layout and themes
- 🔢 Large, clear numbers
- 🧮 Variety of functions (basic, scientific, etc.)

**What reviewers complain about**

- 💢 Intrusive ads, especially between calculations
- 🙄 Ads that are difficult to close
- 🤦‍♂️ Ads that interrupt workflow
- 🤑 Expensive to remove ads
- 🚫 Gambling ads

**Reported bugs**

- Calculation errors with very large numbers
- Crashes after recent update
- Decimal point displayed as comma

**Requested features**

- Dark mode option
- Ability to sync calculation history across devices
- More advanced math functions (e.g. dms/dd)
- Customizable button layout
- Ability to disable ads without paying


## Frequently asked questions

### Is Calculator # free?

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

### Is Calculator HD Pro Lite free?

Calculator HD Pro Lite is free to download, with no in-app purchases.

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

Calculator HD Pro Lite is rated higher. Calculator # averages 4.6 out of 5 from 36K ratings, while Calculator HD Pro Lite averages 4.6 from 52K ratings.

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

Both Calculator # and Calculator HD Pro Lite show ads.

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

Calculator # ships an update every 2 months, and Calculator HD Pro Lite every 2 months. Most recently, Calculator # was updated on October 27, 2026 and Calculator HD Pro Lite 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.*