Sample Size Calculator App vs Equation Solver 4in1
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sample Size Calculator App
This app calculates sample sizes for statistical studies. It dynamically adjusts the sample size based on user inputs for margin of error, confidence level, population size, and proportion.
- Dynamic sample size calculation
- Adjustable margin of error
- Configurable confidence level
- Population size input
- Proportion input
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Sample size statistical calculator. The sample size changes dinamically with every change in the inputs of margin of error, confidence level, population size and proportion.
Equation Solver 4in1
This app helps you solve various types of equations, including linear, quadratic, cubic, and quartic. It provides step-by-step solutions for linear and quadratic equations and stores your calculation history.
- Linear equation solver
- Quadratic equation solver
- Cubic equation solver
- Quartic equation solver
- Step-by-step solutions
- Equation history
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Equation Solver is the ultimate app that helps you solve linear equations in one variable, quadratic equations with real and complex roots, cubic and quartic equations. It's intuitive and easy to use. Just type in any equation you want to solve and Equation Solver will show you the result. Everything you need to solve equations or check results! Features: • Linear Equation Solver. • Quadratic Equation Solver. • Cubic Equation Solver. • Quartic Equation Solver. • Solves equations with fractions and parentheses. Note: the app doesn’t yet support equations with a variable in the denominator. • Supports integers, fractions and decimals, including negative values. • Detailed step-by-step instructions for linear equations and quadratic equations. • Stores history with the possibility to recall previous equations. • Back and forward buttons to check and recall recent equations. • Sends results and history via email.
Screenshots
Verdict
The clearest difference is review sentiment: Sample Size Calculator App at 100% against Equation Solver 4in1's 28%. Sample Size Calculator App also leads on price ($0.99 vs $5.99) and iOS requirement (8.0 vs 12.0). Equation Solver 4in1's advantage is device support (4 vs 2). On update cadence, ads, in-app purchases and monetization model 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
Sample Size Calculator App costs $0.99 and Equation Solver 4in1 $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Sample Size Calculator App ships an update every 8 months, Equation Solver 4in1 every 7 months. The most recent releases landed on September 22, 2026 and September 28, 2026 respectively.
| Parameter | Sample Size Calculator App | Equation Solver 4in1 |
|---|---|---|
| Price | $0.99 — better | $5.99 |
| Rating | 3.5 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews — better | 27.6% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 8 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 8.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 2 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | LHC Apps | Intemodino Group s.r.o. |
Customer experience
Sample Size Calculator App
Equation Solver 4in1
In-app purchases
Sample Size Calculator App
No in-app purchases
Equation Solver 4in1
No in-app purchases
Questions
Is Sample Size Calculator App free?
Is Equation Solver 4in1 free?
Do Sample Size Calculator App or Equation Solver 4in1 have ads?
Which is updated more often, Sample Size Calculator App or Equation Solver 4in1?
Other comparisons
