# i41CX+ vs Calculator´

The clearest difference is price: Calculator´ at Free against i41CX+'s $24.99. Calculator´ also leads on ratings volume (465 vs 106). i41CX+'s advantage is in-app purchases (none vs 4) and review sentiment (91% vs 68%). On update cadence, ads, device support and iOS requirement there is nothing between them.

Calculator´ is free to download; i41CX+ costs $24.99 up front. Calculator´ sells 4 in-app purchases, starting at $0.49 per year. i41CX+ asks for nothing beyond the download.

i41CX+ holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 106 and 465 respectively. Written reviews point the same way: 91% of i41CX+'s written reviews are positive against 68% of Calculator´'s.

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | i41CX+ | Calculator´ |
| --- | --- | --- |
| Price | $24.99 | **Free** |
| Rating | **[4.8 (106 ratings)](https://appshunter.io/ios/app/i41cx-plus/id289068865/reviews)** | [4.6 (465 ratings)](https://appshunter.io/ios/app/calculator/id878851717/reviews) |
| Number of ratings | 106 | **465** |
| Positive reviews | **91.3% of reviews** | 67.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 123 MB | 13 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Antonio Lagana](https://appshunter.io/developer/289068868) | [Oval Software Oy](https://appshunter.io/developer/1438258178) |

## 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


### Calculator´

[App page](https://appshunter.io/ios/app/calculator/id878851717)

This app is a powerful and intelligent calculator with a smart UI and live results. It offers basic, advanced, and scientific functions, a history log, customizable themes, and user-definable functions. It also includes features like an on-screen timer and iPad multitasking support.

**Highlights:** Live results and natural feel UI, User-definable advanced functions, History log with easy access, Customizable themes and colors, On-screen timer, iPad multitasking and Spotlight search

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard features w/ Free Week | $0.49 | per year |
| Standard features w/ Free Year | $0.49 | per year |
| Complete feature-set | $3.99 | per year |
| Converter + Graphing | $3.99 | one-time |

**What reviewers like**

- 👍 Clean and intuitive user interface
- 🚀 Fast and efficient performance
- 📊 Shows calculation progression like paper tape
- 🎨 Customizable appearance and themes
- 📱 Works well as iPhone/iPad replacement for default calculator

**What reviewers complain about**

- 💰 Switched to subscription model from free/one-time purchase
- 😤 Bait-and-switch pricing strategy
- 🔐 Paywall on basic features like clear button
- 📺 Ads and pop-ups introduced
- ⚠️ Removed features after update

**Reported bugs**

- Buttons below numbers 1, 2, 3 not responding
- App crashes when screen fills with numbers
- Numbers deleted backwards after full screen
- Swipe down converter doesn't work properly on iPad
- Pressing equals multiple times adds duplicate results

**Requested features**

- Haptic feedback support
- Fraction calculation support
- RPN mode
- iCloud sync for history
- Automatic parentheses


## Frequently asked questions

### Is i41CX+ free?

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

### Is Calculator´ free?

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

### Which has better reviews, i41CX+ or Calculator´?

i41CX+ is rated higher. i41CX+ averages 4.8 out of 5 from 106 ratings, while Calculator´ averages 4.6 from 465 ratings.

### Do i41CX+ or Calculator´ have ads?

Neither i41CX+ nor Calculator´ shows ads.

### Which is updated more often, i41CX+ or Calculator´?

i41CX+ ships an update every 5 weeks, and Calculator´ every 5 weeks. Most recently, i41CX+ was updated on September 23, 2026 and Calculator´ on September 22, 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.*