# i41CX+ vs ClevCalc

The clearest difference is price: ClevCalc at Free against i41CX+'s $24.99. ClevCalc also leads on ratings volume (14K vs 106). i41CX+'s advantage is in-app purchases (none vs 3) and ads (none vs shown). On rating, review sentiment, update cadence and device support there is nothing between them.

ClevCalc is free to download; i41CX+ costs $24.99 up front. ClevCalc sells 3 in-app purchases, starting at $2.99 per month. i41CX+ asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for i41CX+ against 4.7 for ClevCalc. That said, the two scores are not equally well evidenced: ClevCalc has 14K ratings behind it against 106, so its average is the more settled of the two. Written reviews split almost evenly too, at 91% and 91% positive.

i41CX+ ships an update every 5 weeks, ClevCalc monthly. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | i41CX+ | ClevCalc |
| --- | --- | --- |
| Price | $24.99 | **Free** |
| Rating | **[4.8 (106 ratings)](https://appshunter.io/ios/app/i41cx-plus/id289068865/reviews)** | [4.7 (14K ratings)](https://appshunter.io/ios/app/clevcalc-calculator/id1221235593/reviews) |
| Number of ratings | 106 | **14K** |
| Positive reviews | **91.3% of reviews** | 91.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 123 MB | 117 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Antonio Lagana](https://appshunter.io/developer/289068868) | [Cleveni Inc.](https://appshunter.io/developer/1221235592) |

## What reviewers say

### i41CX+

[App page](https://appshunter.io/ios/app/i41cx-plus/id289068865)

This advanced RPN scientific calculator offers workstation-class Computer Algebra System (CAS) capabilities, going beyond traditional replicas. It provides access to an extensive library of modules and programs, enhanced with iOS features, customizable skins, and iCloud support for seamless data management.

**Highlights:** RPN logic with 4-element stack, Extensive memory registers, Over 400 built-in functions, Computer Algebra System (CAS), Virtual thermal printer/plotter, Access to HP-41 module library, Customizable skins and keyboard overlays

**In-app purchases:** none

**What reviewers like**

- 🚀 Fantastic emulation of the original HP41 calculator
- 🔒 Faithful to the original hardware and functionality
- 👍 Includes all the expansion modules and accessories
- 👍 Responsive and never crashes
- 👍 Excellent implementation of RPN and programmability

**What reviewers complain about**

- 🔋 Can drain battery when left on
- 👎 Small button size can lead to mis-taps
- 👎 Slow startup time in some versions

**Reported bugs**

- Issues with the 41Z math module producing garbled output
- Scaling problems with overlays

**Requested features**

- Landscape mode for better button size
- Haptic feedback for button presses
- Ability to load and save programs/modules via cloud/email
- Macros or scripting support


### ClevCalc

[App page](https://appshunter.io/ios/app/clevcalc-calculator/id1221235593)

This comprehensive calculator app offers a wide range of tools for everyday calculations, from basic arithmetic and scientific functions to unit and currency conversions. It includes specialized calculators for loans, health, fuel costs, GPA, and more, all within a clean and user-friendly interface.

**Highlights:** Scientific calculator, Unit converter, Currency converter, Loan calculator, Health calculator (BMI, BMR), Date calculator, GPA calculator

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription | $2.99 | per month |
| Premium Subscription | $24.99 | per year |
| Premium version | $13.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient calculations
- 💡 Versatile features (currency, unit conversions, etc.)
- 👍 Intuitive interface
- 👍 Helpful for daily tasks

**What reviewers complain about**

- 💰 Subscription model too expensive
- 🔍 Ads can be intrusive
- 🐛 Occasional UI issues (e.g. ads blocking functionality)
- 🔍 Lack of advanced features (e.g. RPN mode, binary calculator)

**Reported bugs**

- Keystrokes not always registering
- Compatibility issues with older devices

**Requested features**

- Dark mode option
- Ability to save/recall calculations
- More customization options
- Integration with other apps/platforms


## Frequently asked questions

### Is i41CX+ free?

i41CX+ costs $24.99, with no in-app purchases.

### Is ClevCalc free?

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

### Which has better reviews, i41CX+ or ClevCalc?

i41CX+ is rated higher. i41CX+ averages 4.8 out of 5 from 106 ratings, while ClevCalc averages 4.7 from 14K ratings.

### Do i41CX+ or ClevCalc have ads?

ClevCalc shows ads; i41CX+ does not.

### Which is updated more often, i41CX+ or ClevCalc?

i41CX+ ships an update every 5 weeks, and ClevCalc monthly. Most recently, i41CX+ was updated on September 25, 2026 and ClevCalc on September 24, 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.*