# Objective Calculator vs Cuspart

The clearest difference is ads: Objective Calculator at none against Cuspart's shown. Objective Calculator also leads on update cadence (every 3 weeks vs every 4 months) and ratings volume (19 vs 1). Cuspart's advantage is rating (5.0 vs 4.7). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Objective Calculator sells 1 one-off in-app purchase and Cuspart sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Cuspart holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Objective Calculator has 19 ratings behind it against 1, so its average is the more settled of the two.

Objective Calculator ships an update every 3 weeks, Cuspart every 4 months. The most recent releases landed on October 17, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Objective Calculator | Cuspart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (19 ratings)](https://appshunter.io/ios/app/objective-calculator/id1287000522/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cuspart-mycal/id1546543143/reviews)** |
| Number of ratings | **19** | 1 |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 13 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Thiago Anderson Martins](https://appshunter.io/developer/1287000521) | [Mustafa Tolga DALBUDAK](https://appshunter.io/developer/1479052908) |

## What reviewers say

### Objective Calculator

[App page](https://appshunter.io/ios/app/objective-calculator/id1287000522)

This versatile calculator app offers a unique tabbed interface for managing multiple calculations simultaneously. It includes a scientific calculator, currency converter, and drawing/annotation capabilities for notes and reminders. Optimized for modern iOS devices, it provides real-time results and advanced history features.

**Highlights:** Tabbed interface for multiple calculations, Scientific calculator functions, Drawing and annotation notes, Real-time problem solving, Currency converter with 33 currencies, Advanced history management, Color themes and dark/light mode

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Objective Calculator Pro | $1.99 | one-time |


### Cuspart

[App page](https://appshunter.io/ios/app/cuspart-mycal/id1546543143)

This app offers a professional-grade calculator with advanced math functions, a constants library, and intuitive history tracking. Customize your experience with various color themes and an accessible interface designed for ease of use.

**Highlights:** Basic and advanced arithmetic, Roots, powers, and logarithms, Constants library (π, e), Operation history, Customizable color themes, Accessible UI design

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $0.99 | per month |
| 3 Month Subscription | $2.99 | per 3 months |
| 12 Month Subscription | $9.99 | per year |
| Remove Ads | $2.49 | one-time |


## Frequently asked questions

### Is Objective Calculator free?

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

### Is Cuspart free?

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

### Which has better reviews, Objective Calculator or Cuspart?

Cuspart is rated higher. Objective Calculator averages 4.7 out of 5 from 19 ratings, while Cuspart averages 5.0 from 1 ratings.

### Do Objective Calculator or Cuspart have ads?

Cuspart shows ads; Objective Calculator does not.

### Which is updated more often, Objective Calculator or Cuspart?

Objective Calculator ships an update every 3 weeks, and Cuspart every 4 months. Most recently, Objective Calculator was updated on October 17, 2026 and Cuspart on October 1, 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.*