# Calculator⁻ vs Progressbar Calculator

The clearest difference is in-app purchases: Calculator⁻ at none against Progressbar Calculator's 11. Calculator⁻ also leads on ratings volume (3.6K vs 28) and update cadence (every 2 months vs every 8 months). Progressbar Calculator's advantage is iOS requirement (9.0 vs 13.0). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Progressbar Calculator sells 11 one-off in-app purchases. Calculator⁻ asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for Calculator⁻ against 4.4 for Progressbar Calculator. That said, the two scores are not equally well evidenced: Calculator⁻ has 3.6K ratings behind it against 28, so its average is the more settled of the two. Written reviews are what separate them: 52% of Calculator⁻'s written reviews are positive against 58% of Progressbar Calculator's.

Calculator⁻ ships an update every 2 months, Progressbar Calculator every 8 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Calculator⁻ | Progressbar Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (3.6K ratings)](https://appshunter.io/ios/app/calculator/id1327796464/reviews) | **[4.4 (28 ratings)](https://appshunter.io/ios/app/progressbar-calculator-retro/id1545181404/reviews)** |
| Number of ratings | **3.6K** | 28 |
| Positive reviews | 52.0% of reviews | **57.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 4 MB | 80 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UniCom Technology](https://appshunter.io/developer/1270764210) | [SH Limited](https://appshunter.io/developer/960275282) |

## What reviewers say

### Calculator⁻

[App page](https://appshunter.io/ios/app/calculator/id1327796464)

A straightforward calculator app designed for simplicity, offering basic arithmetic operations and percentage calculations. It allows users to record and recall past results, customize colors, and enable touch sounds for a personalized experience.

**Highlights:** Basic arithmetic operations, Percentage calculations, Record and recall results, Customizable colors, Touch sound option

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient calculations
- 💡 Retro design
- 👍 Simple and straightforward

**What reviewers complain about**

- 🐛 Decimal point issues
- 🐛 Incorrect calculations
- 🐛 Broken buttons
- 🔍 Confusing button layout

**Reported bugs**

- Decimal point problem: .5 becomes 5
- Button that should be 7 shows as 9 and gives 9 when used
- Percentage button does not work correctly

**Requested features**

- Backspace button
- Percentage button that works properly
- Arrange buttons in standard calculator layout


### Progressbar Calculator

[App page](https://appshunter.io/ios/app/progressbar-calculator-retro/id1545181404)

This calculator app offers a nostalgic retro interface with familiar and intuitive controls. It performs basic arithmetic, square roots, and percentages, with the ability to open multiple calculation windows. Enjoy a visually appealing experience reminiscent of older operating systems.

**Highlights:** Retro visuals, Familiar & intuitive interface, Big buttons, Basic arithmetic calculations, Square root and percentages, Multiple calculation windows, Variety of backgrounds

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 Gems 50% OFF | $0.99 | one-time |
| 30 Gems | $1.99 | one-time |
| 80 Gems 50% OFF | $1.99 | one-time |
| Remove Ads 50% OFF | $2.49 | one-time |
| 150 Gems 50% OFF | $2.99 | one-time |
| 80 Gems | $3.99 | one-time |
| Remove Ads | $4.99 | one-time |
| 150 Gems | $5.99 | one-time |
| Unlock all 50% OFF | $12.99 | one-time |
| Unlock All | $25.99 | one-time |
| 1 Million Coins | $99.99 | one-time |


## Frequently asked questions

### Is Calculator⁻ free?

Calculator⁻ is free to download, with no in-app purchases.

### Is Progressbar Calculator free?

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

### Which has better reviews, Calculator⁻ or Progressbar Calculator?

Progressbar Calculator is rated higher. Calculator⁻ averages 4.4 out of 5 from 3.6K ratings, while Progressbar Calculator averages 4.4 from 28 ratings.

### Do Calculator⁻ or Progressbar Calculator have ads?

Both Calculator⁻ and Progressbar Calculator show ads.

### Which is updated more often, Calculator⁻ or Progressbar Calculator?

Calculator⁻ ships an update every 2 months, and Progressbar Calculator every 8 months. Most recently, Calculator⁻ was updated on October 24, 2026 and Progressbar Calculator on October 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*