Roman Numbers vs Jettle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Jettle
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Jettle: Your Pocket-Sized Math Genius Jettle is an intuitive mobile application designed to simplify mathematics for students, professionals, and lifelong learners. Built on a powerful computational engine, Jettle goes beyond a standard calculator by providing accurate solutions, interactive graphing, and concept explanations that turn complex problems into manageable tasks. Whether you are tackling high school algebra or optimizing financial models, Jettle is the ultimate companion for clarity and speed. Key Features Geometry Calculator: Instantly calculate the area and perimeter of figures. Interactive Graphing: Visualize functions and data points effortlessly using the Grapher function. Concepts Dictionary: Access a comprehensive database of mathematical words, from basic geometry to advanced calculus and statistical distribution models. Who is it for? Jettle is built for anyone who needs to crunch numbers with confidence. It is an essential tool for students preparing for exams, engineers checking field calculations, and finance professionals needing quick validation for complex equations. With a clean, ad-free interface and offline capabilities, Jettle ensures that mathematical support is always just a tap away.
Screenshots
Verdict
The clearest difference is ads: Jettle at none against Roman Numbers's shown. Roman Numbers's advantage is iOS requirement (14.0 vs 18.0). On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Roman Numbers ships an update every 11 days, Jettle weekly. The most recent releases landed on October 20, 2026 and October 9, 2026 respectively.
| Parameter | Roman Numbers | Jettle |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 11 days | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 14.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 3 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Yurii Sushko | Yunqing Fei |
In-app purchases
Roman Numbers
No in-app purchases
Jettle
No in-app purchases









