Comparison

Roman Numerals Converter vs Atom Structure

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Roman Numerals Converter

Easily convert between Roman and Arabic numerals. Supports numbers up to 3,999,999 and validates Roman numeral input. Includes a conversion history and email sharing.

Highlights
  • Roman to Arabic conversion
  • Arabic to Roman conversion
  • Input validation
  • Conversion history
  • Email results
  • Supports numbers up to 3,999,999
Features
Read full description

A handy and easy to use app to convert Roman numerals to Arabic numbers and vice versa. Features: • Converts Roman numerals to Arabic numbers and vice versa. Just enter either a whole number from 1 to 3,999,999 or a Roman numeral and click '='. • A horizontal bar placed above a Roman numeral indicates multiplication by 1000. • Keyboards to input Roman numerals and Arabic numbers. • The app validates the input of Roman numerals. • Flip button to easily switch between Roman numerals and Arabic numbers. • Roman Numerals Pro stores conversion history (last 25 results). • Results can be sent via email.

About

Atom Structure

Features
Read full description

Explore the fascinating structure of atoms and electron distribution with interactive learning! “The Structure of an Atom (Electron Distribution) by EduTech Era” helps students understand how electrons are arranged around the nucleus and how this arrangement influences chemical behavior. With clear visuals, step-by-step explanations, and interactive examples, this app makes learning atomic structure simple and engaging. Features: - Detailed explanation of atomic structure and electron shells - Interactive visuals to explore electron distribution - Simple, student-friendly language for all learning levels - Real-life examples to connect concepts with chemistry - Zoom, rotate, and explore diagrams for better clarity - Works fully offline - no internet required - Ideal for school students, teachers, and self-learners Whether you're studying chemistry for exams or just curious about atoms, this app provides a complete and engaging way to understand the fundamentals of atomic structure and electron arrangement. Download now and explore the building blocks of matter!

Screenshots

Roman Numerals Converter4 screens
Atom Structure4 screens

Verdict

The call

The clearest difference is price: Atom Structure at $1.99 against Roman Numerals Converter's $3.99. On update cadence, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Roman Numerals Converter costs $3.99 and Atom Structure $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Roman Numerals Converter ships an update every 37 months, Atom Structure every 41 months. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

Scorecard1 real difference · 9 level
Roman Numerals Converter versus Atom Structure: the parameters behind the verdict, then further details
ParameterRoman Numerals ConverterAtom Structure
Price$3.99$1.99 — better
Rating5.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 37 months — betterEvery 41 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS11.0 — better12.0
Further details — not scored
Size12 MB232 MB
Age rating4+4+
DeveloperIntemodino Group s.r.o.VIRTUAL FILAMENTS PRIVATE LIMITED

In-app purchases

None

Roman Numerals Converter

No in-app purchases

None

Atom Structure

No in-app purchases

Questions

Is Roman Numerals Converter free?
Roman Numerals Converter costs $3.99, with no in-app purchases.
Is Atom Structure free?
Atom Structure costs $1.99, with no in-app purchases.
Do Roman Numerals Converter or Atom Structure have ads?
Neither Roman Numerals Converter nor Atom Structure shows ads.
Which is updated more often, Roman Numerals Converter or Atom Structure?
Roman Numerals Converter ships an update every 37 months, and Atom Structure every 41 months. Most recently, Roman Numerals Converter was updated on November 1, 2026 and Atom Structure on November 7, 2026.

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