# Calculus vs Focus Flip

The clearest difference is update cadence: Focus Flip at every 2 days against Calculus's every 2 weeks. Calculus's advantage is iOS requirement (15.1 vs 18.2). On price, ads, in-app purchases 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 and Focus Flip sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Calculus ships an update every 2 weeks, Focus Flip every 2 days. The most recent releases landed on July 17, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Calculus | Focus Flip |
| --- | --- | --- |
| 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 | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 36 MB | 51 MB |
| Requires iOS | **15.1** | 18.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [AlicSystems](https://appshunter.io/developer/1793437899) | [Anul Agarwal](https://appshunter.io/developer/1515910661) |

## What reviewers say

### 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 |


### Focus Flip

[App page](https://appshunter.io/ios/app/focus-flip-study-timer/id6756534301)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Study Timer Weekly 1 | $1.99 | per 7 days |
| Pomodoro Timer Lifetime 1 | $7.99 | one-time |


## Frequently asked questions

### Is Calculus free?

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

### Is Focus Flip free?

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

### Do Calculus or Focus Flip have ads?

Neither Calculus nor Focus Flip shows ads.

### Which is updated more often, Calculus or Focus Flip?

Calculus ships an update every 2 weeks, and Focus Flip every 2 days. Most recently, Calculus was updated on July 17, 2026 and Focus Flip on September 15, 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.*