RationalNumberCalculator vs MathPapa
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RationalNumberCalculator
Perform calculations with fractions, decimals, and mixed numbers. Supports addition, subtraction, multiplication, and division. Results can be displayed in various formats.
- Fraction arithmetic
- Decimal and fraction operations
- Four arithmetic operations
- Display results as decimal
- Display results as improper fraction
- Display results as mixed fraction
Read full descriptionHide full description
It is a calculator for a fraction calculation. We will do the four arithmetic operations of fraction and fraction, decimal and fraction. The results can be displayed decimal, improper fraction, mixed fraction.
MathPapa
This app provides step-by-step solutions to algebra problems, helping users understand how to solve equations and inequalities. It can also graph equations, factor expressions, and evaluate mathematical expressions.
- Step-by-step equation solving
- Linear and quadratic equation solver
- Linear and quadratic inequality solver
- Equation graphing
- Quadratic expression factoring
- Order of operations
- Expression evaluation
Read full descriptionHide full description
SOLVE your algebra problems step-by-step with MathPapa! MathPapa can solve your equations (and show the work!) and help you when you're stuck on your math homework. FEATURES: • Solves linear equations and quadratic equations. • Solves linear and quadratic inequalities. • Graphs equations. • Factors quadratic expressions. • Order of operations step-by-step. • Evaluates expressions. • Solves systems of two equations. STEP-BY-STEP SOLUTIONS: MathPapa's goal is to help you learn algebra step-by-step. Get help on your algebra problems with the MathPapa Algebra Calculator! HOW TO USE THE CALCULATOR: Just type your problem into the text box. For example, enter 3x+5=17 into the text box to get a step-by-step explanation of how to solve 3x+5=17. MATH SYMBOLS: Here are some symbols that the calculator understands: + (Addition) - (Subtraction) * (Multiplication) / (Division) ^ (Exponent: "raised to the power") √ (Square Root) |x| (Absolute Value of x) MATHPAPA PREMIUM PRICING AND TERMS: For MathPapa Premium, there is a Monthly subscription for $9.99. This price is for U.S. customers. Pricing in other countries may vary. Subscriptions will be charged via your iTunes account at the end of the free trial. Subscriptions will automatically renew unless canceled in Account Settings at least 24 hours before the end of the current period. Unused portion of Free Trial, if offered, is forfeited after purchase. For more information, read our Terms and Privacy Policy: Terms of Service: https://www.mathpapa.com/terms/ Privacy Policy: https://www.mathpapa.com/privacy/
Screenshots
Verdict
The clearest difference is in-app purchases: RationalNumberCalculator at none against MathPapa's 2. RationalNumberCalculator also leads on rating (5.0 vs 4.7) and iOS requirement (11.0 vs 15.0). MathPapa's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 9 months). On price 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. MathPapa sells 2 in-app purchases, starting at $9.99 per month. RationalNumberCalculator asks for nothing beyond the download.
RationalNumberCalculator holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: MathPapa has 17K ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 64% of RationalNumberCalculator's written reviews are positive against 78% of MathPapa's, so the app with the better star average is not the one people write more warmly about.
RationalNumberCalculator ships an update every 9 months, MathPapa every 3 weeks. The most recent releases landed on November 4, 2026 and November 9, 2026 respectively.
| Parameter | RationalNumberCalculator | MathPapa |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | 4.7 (17K ratings) |
| Positive reviews | 63.6% of reviews | 77.8% of reviews — better |
| Number of ratings | 6 | 17K — better |
| Update frequency | Every 9 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 4 MB | 5 MB |
| Age rating | 4+ | 12+ |
| Developer | Jirou Fukuda | MathPapa, Inc. |
Customer experience
RationalNumberCalculator
MathPapa
Bugs and requests
RationalNumberCalculator
Not enough reviews yet to summarise bugs or requests.
MathPapa
Reported bugs
2 issues- Doesn't always recognize certain input formats
- Step-by-step solutions not always available even with subscription
Requested features
5 requests- Add history/log of past calculations
- Support for more math functions like differentiation and integration
- Ability to input expressions with exponents as expressions
- Option to display answers in different formats (decimal, fraction, mixed number)
- Ability to take a photo of a problem and have it solved
In-app purchases
RationalNumberCalculator
No in-app purchases
MathPapa
- MathPapa Premium Monthly7 Days trial$9.991 Month
- MathPapa Pro Upgrade$49.99
Questions
Is RationalNumberCalculator free?
Is MathPapa free?
Which has better reviews, RationalNumberCalculator or MathPapa?
Do RationalNumberCalculator or MathPapa have ads?
Which is updated more often, RationalNumberCalculator or MathPapa?
Other comparisons
