Equation Solver & Simplifier vs X
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Equation Solver & Simplifier
This app helps you solve algebraic equations by showing every step of the simplification process. It can find the value of 'x' or the zeros of a function using a numeric algorithm after simplifying your input.
- Algebraic equation solving
- Step-by-step simplification
- Numeric algorithm for solutions
- History function
- Decimal input support
- Constants and variables support
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Finish homework instantly. Prepare for exams stress-free. Free, complete step-by-step solutions. Enter your equation, solve it, and understand every transformation instantly. HOW IT WORKS Enter your values into the correct fields and get started. You receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don’t need it. Only anonymized data is collected, such as: - which features are used - how many solutions are generated This helps us improve. We cannot trace anything back to you. COSTS Everything is free to use. 24/7 access to your solutions. All solution steps always remain complete. If you need many solutions in a short time, various purchase options are available. EXTRAS - curated learning videos - feedback for incorrect inputs - manage your own solutions - app introduction CONTACT Questions and feedback via Discord or directly in the app review.
X
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X-Squared Challenge is a math app that challenges players to build equations — not just solve them. Using integers, operators, parentheses, and exponents, players construct expressions that equal a target number while following the order of operations (PEMDAS). Three ways to play: LEARN — Pick one operation and build a two-card equation. The gentlest introduction, with no login and no scoring. PRACTICE — Three or four cards, every integer available, no pressure and no score. COMPETE — Level 4 and Level 6 puzzles that earn points, with streaks and a score that follows you across devices. This game is unique in that it requires creative reasoning — players must create equations rather than simply solve them. The game promotes enhanced learning for students and others practicing their understanding of the order of operations and math facts. Anyone who plays, regardless of their current level of mathematics, will improve their basic math skills. X-Squared Challenge was derived from a patented product called the X-Squared Math Card Deck, produced by Cognitive Card Games LLC. That order of operations deck is the only one available to the public with two important characteristics: it is both simple and complete. The elements are easy to use and understand in creating equations that conform to the rules of the order of operations. It is complete in that it includes all elements of PEMDAS: parentheses cards, exponent cards, multiplication, division, addition, and subtraction cards. The parentheses and exponent cards are transparent so they can overlay integer cards. The app incorporates all of the characteristics of the card deck.
Screenshots
Verdict
The clearest difference is in-app purchases: X at none against Equation Solver & Simplifier's 8. Equation Solver & Simplifier's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement 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. Equation Solver & Simplifier sells 8 one-off in-app purchases. X asks for nothing beyond the download.
Equation Solver & Simplifier ships an update every 3 weeks, X every 2 months. The most recent releases landed on October 8, 2026 and September 24, 2026 respectively.
| Parameter | Equation Solver & Simplifier | X |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (10 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 182 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Glindemann, Sennoun, Langer GbR | Cognitive Card Games LLC |
In-app purchases
Equation Solver & Simplifier
- +30 User Tokens$0.29
- +1 Convenience Token / 6h, max. +2$0.59
- +2 Convenience Tokens / 6h, max. +4$0.99
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- +150 User Tokens$0.99
- +300 User Tokens$1.49
- +4 Convenience Tokens / 6h, max. +8$1.59
- Remove Ads$1.99
- Lifetime Access$1.99
X
No in-app purchases
Questions
Is Equation Solver & Simplifier free?
Is X free?
Do Equation Solver & Simplifier or X have ads?
Which is updated more often, Equation Solver & Simplifier or X?
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