# Calculator + vs Roman Numbers

The clearest difference is in-app purchases: Roman Numbers at none against Calculator +'s 12. Roman Numbers also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 85%). Calculator +'s advantage is ratings volume (10K vs 1) and update cadence (every 5 days vs every 11 days). On price, ads and device support there is nothing between them.

Both are free to download. Calculator + sells 12 in-app purchases, starting at $4.99 per month. Roman Numbers asks for nothing beyond the download.

Roman Numbers holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Calculator + has 10K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 85% of Calculator +'s written reviews are positive against 100% of Roman Numbers's.

Calculator + ships an update every 5 days, Roman Numbers every 11 days. The most recent releases landed on October 26, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Calculator + | Roman Numbers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (10K ratings)](https://appshunter.io/ios/app/calculator-plus/id351815470/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/roman-numbers/id1485298435/reviews)** |
| Number of ratings | **10K** | 1 |
| Positive reviews | 84.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Every 11 days |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 50 MB | 3 MB |
| Requires iOS | 16.4 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [xNeat.com](https://appshunter.io/developer/327498295) | [Yurii Sushko](https://appshunter.io/developer/1368611820) |

## What reviewers say

### Calculator +

[App page](https://appshunter.io/ios/app/calculator-plus/id351815470)

This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.

**Highlights:** Free basic and scientific calculator, Intuitive interface with equation and result display, Fraction and percent support, Advanced editing capabilities, Polynomial and linear equation solver, Graphing calculator, Unit conversion and geometric calculators

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scientific Calculator | $4.99 | per month |
| Calculator | $39.99 | per year |
| Linear Calculator | $2.99 | one-time |
| Factoring Calculator | $2.99 | one-time |
| Handwriting Calculator | $2.99 | one-time |
| Currency Converter | $2.99 | one-time |
| Themes Pack | $2.99 | one-time |
| Graphing Calculator | $3.99 | one-time |
| Fraction Calculator | $3.99 | one-time |
| Scientific Calculator | $4.99 | one-time |
| Calculator Plus | $4.99 | one-time |
| Calculator | $16.99 | one-time |

**What reviewers like**

- 👍 Great features and easy to use
- 👍 Efficient and quick
- 👍 Versatile, functional calculator
- 👍 Fantastic, easy to use app
- 👍 Awesome calculator app

**What reviewers complain about**

- 🐛 New updated layout is awful
- 🐛 App is now terrible
- 🔒 Paying customer screwed over by update
- 🔒 Now timed trial, no free w/ads version
- 🔒 Not honest

**Reported bugs**

- Fraction calculator has TWO subtraction buttons and NO division button
- Decimals seem to be changed to fraction with no apparent way of changing it back
- Functionality is dropped by forcing you to the main menu every time you open it
- Currency converter broken
- Login screen freezes

**Requested features**

- Add mod function
- Add commas
- Add 1/x function
- Support for Retina Display
- Add number 4 with two lines


### Roman Numbers

[App page](https://appshunter.io/ios/app/roman-numbers/id1485298435)

Easily convert between standard numbers and Roman numerals. This utility also includes key historical dates from Ancient Rome.

**Highlights:** Number to Roman numeral conversion, Roman numeral to number conversion, Ancient Roman historical dates, Simple user interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculator + free?

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

### Is Roman Numbers free?

Roman Numbers is free to download, with no in-app purchases.

### Which has better reviews, Calculator + or Roman Numbers?

Roman Numbers is rated higher. Calculator + averages 4.6 out of 5 from 10K ratings, while Roman Numbers averages 5.0 from 1 ratings.

### Do Calculator + or Roman Numbers have ads?

Both Calculator + and Roman Numbers show ads.

### Which is updated more often, Calculator + or Roman Numbers?

Calculator + ships an update every 5 days, and Roman Numbers every 11 days. Most recently, Calculator + was updated on October 26, 2026 and Roman Numbers on October 20, 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.*