# PNU APP vs Calculus

The clearest difference is in-app purchases: PNU APP at none against Calculus's 2. Calculus's advantage is update cadence (every 2 weeks vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Calculus sells 2 in-app purchases, starting at $4.99 per 7 days. PNU APP asks for nothing beyond the download.

PNU APP ships an update every 6 weeks, Calculus every 2 weeks. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PNU APP | Calculus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (4 ratings)](https://appshunter.io/ios/app/calculus-homework-helper/id6754210755/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 68 MB | 36 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Krung Thai Bank](https://appshunter.io/developer/383583054) | [AlicSystems](https://appshunter.io/developer/1793437899) |

## What reviewers say

### PNU APP

[App page](https://appshunter.io/ios/app/pnu-app/id6504337345)

**In-app purchases:** none


### Calculus

[App page](https://appshunter.io/ios/app/calculus-homework-helper/id6754210755)

This AI-powered math companion provides instant, step-by-step solutions to calculus problems. Easily input questions via photo or typing to understand derivatives, integrals, and limits.

**Highlights:** Photo solver for instant problem capture, Manual input for equation entry, Detailed step-by-step explanations, Instant and accurate solutions, Covers derivatives, integrals, limits, and more

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $4.99 | per 7 days |
| Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is PNU APP free?

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

### Is Calculus free?

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

### Do PNU APP or Calculus have ads?

Neither PNU APP nor Calculus shows ads.

### Which is updated more often, PNU APP or Calculus?

PNU APP ships an update every 6 weeks, and Calculus every 2 weeks. Most recently, PNU APP was updated on October 28, 2026 and Calculus on October 24, 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.*