# Calculus vs SJCCI Mobile App

The clearest difference is in-app purchases: SJCCI Mobile App at none against Calculus's 13. SJCCI Mobile App also leads on update cadence (every 2 months vs every 16 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Calculus sells 13 one-off in-app purchases. SJCCI Mobile App asks for nothing beyond the download.

Calculus ships an update every 16 months, SJCCI Mobile App every 2 months. The most recent releases landed on September 27, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Calculus | SJCCI Mobile App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (4 ratings)](https://appshunter.io/ios/app/calculus-pro/id1638196645/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 40 MB | 70 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Richard Ssenyonjo](https://appshunter.io/developer/1528776742) | [Livro Systems Incorporated](https://appshunter.io/developer/1896544025) |

## What reviewers say

### Calculus

[App page](https://appshunter.io/ios/app/calculus-pro/id1638196645)

Learn calculus comprehensively through 10 chapters and reinforce your understanding with an interactive quiz game. This app caters to both beginners and advanced learners, offering hints and challenging problems. Enjoy a clear, adaptable interface with font size adjustments and light/dark mode support.

**Highlights:** 10-chapter calculus curriculum, Interactive calculus quiz game, Beginner to advanced learning paths, Adjustable font size, Light and dark mode support, Covers differentiation, integration, and differential equations

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get 1,000 Coins | $0.99 | one-time |
| Get 5,000 Coins | $1.99 | one-time |
| Get 10,000 Coins | $2.99 | one-time |
| Unlock Calculus 1 | $2.99 | one-time |
| Unlock Calculus 2 | $2.99 | one-time |
| Unlock Calculus 3 | $2.99 | one-time |
| Unlock Chapter 5 | $2.99 | one-time |
| Unlock Calculus 8 | $2.99 | one-time |
| Unlock Calculus 9 | $2.99 | one-time |
| Unlock Calculus 4 | $2.99 | one-time |
| Unlock Calculus 6 | $2.99 | one-time |
| Unlock Calculus 7 | $2.99 | one-time |
| Unlock Calculus 10 | $2.99 | one-time |


### SJCCI Mobile App

[App page](https://appshunter.io/ios/app/sjcci-mobile-app/id6764210275)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculus free?

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

### Is SJCCI Mobile App free?

SJCCI Mobile App is free to download, with no in-app purchases.

### Do Calculus or SJCCI Mobile App have ads?

Neither Calculus nor SJCCI Mobile App shows ads.

### Which is updated more often, Calculus or SJCCI Mobile App?

Calculus ships an update every 16 months, and SJCCI Mobile App every 2 months. Most recently, Calculus was updated on September 27, 2026 and SJCCI Mobile App on October 20, 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.*