# FX Calculus Problem Solver vs Integral Calculator with Steps

The clearest difference is review sentiment: FX Calculus Problem Solver at 48% against Integral Calculator with Steps's 0%. FX Calculus Problem Solver also leads on in-app purchases (none vs 1) and ads (none vs shown). Integral Calculator with Steps's advantage is rating (3.8 vs 3.4). On price, update cadence, monetization model and device support there is nothing between them.

Both are free to download. Integral Calculator with Steps sells 1 one-off in-app purchase. FX Calculus Problem Solver asks for nothing beyond the download.

Integral Calculator with Steps holds the better App Store score, 3.8 against 3.4. Both are backed by a comparable volume of ratings — 78 and 23 respectively. Written reviews complicate that: 48% of FX Calculus Problem Solver's written reviews are positive against 0% of Integral Calculator with Steps's, so the app with the better star average is not the one people write more warmly about.

FX Calculus Problem Solver ships an update every 5 months, Integral Calculator with Steps every 3 months. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | FX Calculus Problem Solver | Integral Calculator with Steps |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (78 ratings)](https://appshunter.io/ios/app/fx-calculus-problem-solver/id833967111/reviews) | **[3.8 (23 ratings)](https://appshunter.io/ios/app/integral-calculator-with-steps/id1593386062/reviews)** |
| Number of ratings | **78** | 23 |
| Positive reviews | **48.5% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 35 MB | 42 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Euclidus Inc](https://appshunter.io/developer/490623202) | [Asad Ahsan](https://appshunter.io/developer/1326954499) |

## What reviewers say

### FX Calculus Problem Solver

[App page](https://appshunter.io/ios/app/fx-calculus-problem-solver/id833967111)

Solve calculus homework and textbook problems with this comprehensive math software. It offers animated solution steps, a scientific and graphing calculator, and an intuitive editor for typing in your own problems. Ideal for students preparing for exams.

**Highlights:** Animated step-by-step solutions, Scientific calculator, Graphing calculator, Automatic problem solving, Math problem expression editor, Over 1,000 sample problems

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent for learning calculus
- 👍 Step-by-step solutions provided
- 👍 Helpful for reviewing concepts
- 👍 Good for checking homework answers
- 👍 Can simplify complex problems

**What reviewers complain about**

- 😞 Frequent crashes and freezing
- 😞 Inaccurate answers for some problems
- 😞 "Scam" due to payment issues
- 😞 Premium version stops working after purchase
- 😞 Paid content is essential

**Reported bugs**

- App crashes when launching animated solutions board
- App crashes after solving 2-3 operations
- App freezes when clicking solve button
- App crashes when hitting solve button
- App stops working after paying for premium

**Requested features**

- Add summation functionality
- Add trigonometry functions and equations
- Add camera recognition for problems
- Add curve fitting feature
- Add INC and DEC coordinates on graph


### Integral Calculator with Steps

[App page](https://appshunter.io/ios/app/integral-calculator-with-steps/id1593386062)

This free tool helps you evaluate integrals instantly, providing step-by-step calculations for both definite and indefinite integrals. It simplifies complex functions and offers accurate results with a user-friendly interface and an advanced scientific keyboard.

**Highlights:** Instant integral evaluation, Step-by-step calculations, Definite and indefinite integrals, User-friendly interface, Advanced scientific keyboard, Downloadable PDF results

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Integral Calculator Premium | $4.99 | one-time |


## Frequently asked questions

### Is FX Calculus Problem Solver free?

FX Calculus Problem Solver is free to download, with no in-app purchases.

### Is Integral Calculator with Steps free?

Integral Calculator with Steps is free to download, with in-app purchases available.

### Which has better reviews, FX Calculus Problem Solver or Integral Calculator with Steps?

Integral Calculator with Steps is rated higher. FX Calculus Problem Solver averages 3.4 out of 5 from 78 ratings, while Integral Calculator with Steps averages 3.8 from 23 ratings.

### Do FX Calculus Problem Solver or Integral Calculator with Steps have ads?

Integral Calculator with Steps shows ads; FX Calculus Problem Solver does not.

### Which is updated more often, FX Calculus Problem Solver or Integral Calculator with Steps?

FX Calculus Problem Solver ships an update every 5 months, and Integral Calculator with Steps every 3 months. Most recently, FX Calculus Problem Solver was updated on September 20, 2026 and Integral Calculator with Steps on September 22, 2026.

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