# iFactorAnalysis™ Lite vs Calculus

The clearest difference is in-app purchases: iFactorAnalysis™ Lite at none against Calculus's 2. iFactorAnalysis™ Lite also leads on iOS requirement (13.0 vs 15.1). Calculus's advantage is update cadence (every 2 weeks vs every 8 months). On price, ads and device support there is nothing between them.

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

iFactorAnalysis™ Lite ships an update every 8 months, Calculus every 2 weeks. The most recent releases landed on October 19, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | iFactorAnalysis™ Lite | Calculus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (2 ratings)](https://appshunter.io/ios/app/calculus-homework-helper/id6754210755/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 18 MB | 36 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Acurasoft Inc.](https://appshunter.io/developer/1356241818) | [AlicSystems](https://appshunter.io/developer/1793437899) |

## What reviewers say

### iFactorAnalysis™ Lite

[App page](https://appshunter.io/ios/app/ifactoranalysis-lite/id1356253906)

**Features:** macOS Compatibility

**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 iFactorAnalysis™ Lite free?

iFactorAnalysis™ Lite is free to download, with no in-app purchases.

### Is Calculus free?

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

### Do iFactorAnalysis™ Lite or Calculus have ads?

Neither iFactorAnalysis™ Lite nor Calculus shows ads.

### Which is updated more often, iFactorAnalysis™ Lite or Calculus?

iFactorAnalysis™ Lite ships an update every 8 months, and Calculus every 2 weeks. Most recently, iFactorAnalysis™ Lite was updated on October 19, 2026 and Calculus on September 27, 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.*