# Calculator⁼ vs SR Pro Services

The clearest difference is in-app purchases: SR Pro Services at none against Calculator⁼'s 8. SR Pro Services also leads on ads (none vs shown) and update cadence (fortnightly vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Calculator⁼ sells 8 in-app purchases, starting at $0.49 per 7 days. SR Pro Services asks for nothing beyond the download.

Calculator⁼ ships an update monthly, SR Pro Services fortnightly. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Calculator⁼ | SR Pro Services |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (358K ratings)](https://appshunter.io/ios/app/calculator/id487127942/reviews)** | — |
| Number of ratings | **358K** | — |
| Positive reviews | 35.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 159 MB | 24 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Impala Studios](https://appshunter.io/developer/1063279743) | [Nirav Patel](https://appshunter.io/developer/1451634418) |

## What reviewers say

### Calculator⁼

[App page](https://appshunter.io/ios/app/calculator/id487127942)

This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.

**Highlights:** Basic & Scientific Calculator, Live Currency Converter, History Tape, Equation Edit Function, Degrees or Radians Calculation, Memory Banks

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Access | $0.49 | per 7 days |
| Monthly full access | $1.99 | per month |
| Weekly Premium Access | $1.99 | per 7 days |
| Limited Time Offer | $4.99 | per year |
| Premium Yearly | $5.99 | per year |
| Annual Premium Access | $9.99 | per year |
| Retro Theme Calculator' | $0.99 | one-time |
| Lifetime Full Access | $14.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 📊 Helpful history feature
- 💻 Versatile (basic and scientific)
- 🔍 Clear display and large buttons

**What reviewers complain about**

- 🤖 Intrusive and excessive ads
- 💰 Subscription model for ad-free version
- 🔄 Ads interrupting calculations
- 🕰️ Slow performance due to ads

**Reported bugs**

- History not always showing all entries
- Ads covering up parts of the screen
- Inability to close full-screen ads

**Requested features**

- Add fraction button
- Option to clear calculation history
- Ability to copy/paste results
- Customizable layout and themes


### SR Pro Services

[App page](https://appshunter.io/ios/app/sr-pro-services/id6788355213)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator⁼ free?

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

### Is SR Pro Services free?

SR Pro Services is free to download, with no in-app purchases.

### Do Calculator⁼ or SR Pro Services have ads?

Calculator⁼ shows ads; SR Pro Services does not.

### Which is updated more often, Calculator⁼ or SR Pro Services?

Calculator⁼ ships an update monthly, and SR Pro Services fortnightly. Most recently, Calculator⁼ was updated on October 15, 2026 and SR Pro Services on October 9, 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.*