# Equation Solver & Simplifier vs X

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.

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.

## The numbers

| Metric | Equation Solver & Simplifier | X |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (10 ratings)](https://appshunter.io/ios/app/equation-solver-and-simplifier/id1500087226/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 182 MB | 29 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Cognitive Card Games LLC](https://appshunter.io/developer/1843132107) |

## What reviewers say

### Equation Solver & Simplifier

[App page](https://appshunter.io/ios/app/equation-solver-and-simplifier/id1500087226)

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.

**Highlights:** Algebraic equation solving, Step-by-step simplification, Numeric algorithm for solutions, History function, Decimal input support, Constants and variables support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Remove Ads | $1.99 | one-time |
| Lifetime Access | $1.99 | one-time |


### X

[App page](https://appshunter.io/ios/app/x-squared-challenge/id6760794467)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Equation Solver & Simplifier free?

Equation Solver & Simplifier is free to download, with in-app purchases available.

### Is X free?

X is free to download, with no in-app purchases.

### Do Equation Solver & Simplifier or X have ads?

Neither Equation Solver & Simplifier nor X shows ads.

### Which is updated more often, Equation Solver & Simplifier or X?

Equation Solver & Simplifier ships an update every 3 weeks, and X every 2 months. Most recently, Equation Solver & Simplifier was updated on October 8, 2026 and X on September 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*