Calculator· vs Roman Numbers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator·
This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.
- Basic arithmetic operations
- Percentage calculations
- Multiple color schemes
- Copy results
- Square, square root, inverse functions
- iPad Split View support
- Apple Watch support
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A truly no-frills calculator with the perfect blend of features and simplicity. Tired of getting lost in features you don’t use, but wish you had just a few more? Try Calculator· today! Features: • The essentials—add, subtract, multiply, divide, percent • Multiple color schemes • Copy your result (double tap result to copy) • Square, square root, and inverse functions on iPad landscape • Split View for iPad so you can run two apps at once • Apple Watch Support This app contains auto-renewable subscriptions: • Premium Access • 1 month and 1 year durations available Limit one free trial per user. Charged through your iTunes account at confirmation of purchase. Your account will be charged within 24-hours prior to the end of the current period. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. You can manage your subscriptions and turn off auto-renewal from your Account Settings in iTunes after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that product, where applicable. • Privacy policy: https://www.iubenda.com/privacy-policy/905866 • Terms of use: http://www.timosstudios.com/terms-of-use You can follow the instructions on our website to change or cancel your subscription: http://www.timosstudios.com/how-to-cancel-subscription-on-ios
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 in-app purchases: Roman Numbers at none against Calculator·'s 3. Roman Numbers also leads on update cadence (every 11 days vs every 3 months) and review sentiment (100% vs 84%). Calculator·'s advantage is ratings volume (34K vs 1). On price, rating, ads and device support 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. Calculator· sells 3 in-app purchases, starting at $0.99 per month. Roman Numbers asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for Calculator· against 5.0 for Roman Numbers. That said, the two scores are not equally well evidenced: Calculator· has 34K ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 84% of Calculator·'s written reviews are positive against 100% of Roman Numbers's.
Calculator· ships an update every 3 months, Roman Numbers every 11 days. The most recent releases landed on October 28, 2026 and October 20, 2026 respectively.
| Parameter | Calculator· | Roman Numbers |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (34K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 84.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 34K — better | 1 |
| Update frequency | Every 3 months | Every 11 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 47 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Tim O's Studios, LLC | Yurii Sushko |
Customer experience
Calculator·
Roman Numbers
Bugs and requests
Calculator·
Reported bugs
3 issues- Crashes when performing long calculations
- Freezes when opening the app
- Incorrect results for some complex calculations
Requested features
4 requests- Add a backspace/undo button
- Implement a history/memory feature
- Provide more customization options
- Reduce frequency of ads
Roman Numbers
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator·
- Upgrade App3 Days trial$0.991 Month
- Upgrade App$4.991 Year
- Upgrade App$1.99
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?
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