# Calculus Solver vs Inkulus

The clearest difference is update cadence: Inkulus at monthly against Calculus Solver's every 11 months. Calculus Solver's advantage is iOS requirement (17.6 vs 26). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Calculus Solver sells 2 in-app purchases, starting at $4.99 per 7 days and Inkulus sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Calculus Solver ships an update every 11 months, Inkulus monthly. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Calculus Solver | Inkulus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/inkulus/id6760616214/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 12 MB | 4 MB |
| Requires iOS | **17.6** | 26 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nicolas Gustavo Melian](https://appshunter.io/developer/1777868675) | [Teksum Development](https://appshunter.io/developer/1689891632) |

## What reviewers say

### Calculus Solver

[App page](https://appshunter.io/ios/app/calculus-solver-step-by-step/id6753817856)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $4.99 | per 7 days |
| Yearly Plan | $24.99 | per year |


### Inkulus

[App page](https://appshunter.io/ios/app/inkulus/id6760616214)

This app makes learning calculus engaging and effective through interactive tutorials, competitive gameplay, and real-time feedback. It allows users to actively solve problems, track progress, and develop a deeper understanding of mathematical concepts.

**Highlights:** Interactive calculus tutorials, Multiple game modes, 1v1 math battles, XP progression and statistics, Drawing canvas for touch/Apple Pencil, Active learning approach

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Inkulus Pro Weekly | $2.99 | per 7 days |
| Inkulus Pro Monthly | $7.99 | per month |
| Inkulus Pro Yearly | $69.99 | per year |


## Frequently asked questions

### Is Calculus Solver free?

Calculus Solver is free to download, with in-app purchases available.

### Is Inkulus free?

Inkulus is free to download, with in-app purchases available.

### Do Calculus Solver or Inkulus have ads?

Neither Calculus Solver nor Inkulus shows ads.

### Which is updated more often, Calculus Solver or Inkulus?

Calculus Solver ships an update every 11 months, and Inkulus monthly. Most recently, Calculus Solver was updated on October 6, 2026 and Inkulus on October 3, 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.*