Calculator⁻ vs Roman Numbers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator⁻
A straightforward calculator app designed for simplicity, offering basic arithmetic operations and percentage calculations. It allows users to record and recall past results, customize colors, and enable touch sounds for a personalized experience.
- Basic arithmetic operations
- Percentage calculations
- Record and recall results
- Customizable colors
- Touch sound option
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It is a simple and easy calculator. It is a simple calculator with no complex functions at all. Features: Addition, subtraction, multiplication, division, percent operation Recording and recalling calculation results The numbers, operators, parentheses, results Custom colors Use touch sound Very useful for school children
Roman Numbers
Easily convert between standard numbers and Roman numerals. This utility also includes key historical dates from Ancient Rome.
- Number to Roman numeral conversion
- Roman numeral to number conversion
- Ancient Roman historical dates
- Simple user interface
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This simple application allows you to convert numeric numbers to and from Roman numerals and contains the main dates of the history of Ancient Rome.
Screenshots
Verdict
The clearest difference is review sentiment: Roman Numbers at 100% against Calculator⁻'s 52%. Roman Numbers also leads on rating (5.0 vs 4.4) and update cadence (every 11 days vs every 2 months). Calculator⁻'s advantage is ratings volume (3.6K vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Roman Numbers holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Calculator⁻ has 3.6K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 52% of Calculator⁻'s written reviews are positive against 100% of Roman Numbers's.
Calculator⁻ ships an update every 2 months, Roman Numbers every 11 days. The most recent releases landed on October 29, 2026 and October 20, 2026 respectively.
| Parameter | Calculator⁻ | Roman Numbers |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (3.6K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 52.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3.6K — better | 1 |
| Update frequency | Every 2 months | Every 11 days — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | UniCom Technology | Yurii Sushko |
Customer experience
Calculator⁻
Roman Numbers
Bugs and requests
Calculator⁻
Reported bugs
3 issues- Decimal point problem: .5 becomes 5
- Button that should be 7 shows as 9 and gives 9 when used
- Percentage button does not work correctly
Requested features
3 requests- Backspace button
- Percentage button that works properly
- Arrange buttons in standard calculator layout
Roman Numbers
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator⁻
No in-app purchases
Roman Numbers
No in-app purchases
Questions
Is Calculator⁻ free?
Is Roman Numbers free?
Which has better reviews, Calculator⁻ or Roman Numbers?
Do Calculator⁻ or Roman Numbers have ads?
Which is updated more often, Calculator⁻ or Roman Numbers?
Other comparisons
