# Scientific Calculator vs BIM Service

The clearest difference is in-app purchases: BIM Service at none against Scientific Calculator's 3. BIM Service also leads on ads (none vs shown). Scientific Calculator's advantage is update cadence (every 2 months vs every 7 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Scientific Calculator sells 3 in-app purchases, starting at $1.59 per month. BIM Service asks for nothing beyond the download.

Scientific Calculator ships an update every 2 months, BIM Service every 7 months. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Scientific Calculator | BIM Service |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/scientific-calculator-cal/id6504383829/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free with in-app purchases | — |
| Size | 36 MB | 24 MB |
| Requires iOS | 15.6 | **15.5** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [长宏 侯](https://appshunter.io/developer/1726037103) | [AdvanTex Software GmbH & Co. KG](https://appshunter.io/developer/1237550911) |

## What reviewers say

### Scientific Calculator

[App page](https://appshunter.io/ios/app/scientific-calculator-cal/id6504383829)

Perform complex calculations with a natural input interface. This app offers instant results in both number and expression formats, supporting a wide range of mathematical functions. Enjoy a clean design with customizable options and offline availability.

**Highlights:** Natural input expression entry, Instant calculation results, Number and expression format display, Percentage calculation (tip & math), Trigonometric and logarithmic functions, Result history and copy/paste, Dark/light mode and orientation support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Monthly) | $1.59 | per month |
| Pro (Yearly) | $12.99 | per year |
| Remove Ads | $2.99 | one-time |


### BIM Service

[App page](https://appshunter.io/ios/app/bim-service/id6748942321)

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

**In-app purchases:** none


## Frequently asked questions

### Is Scientific Calculator free?

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

### Is BIM Service free?

BIM Service is free to download, with no in-app purchases.

### Do Scientific Calculator or BIM Service have ads?

Scientific Calculator shows ads; BIM Service does not.

### Which is updated more often, Scientific Calculator or BIM Service?

Scientific Calculator ships an update every 2 months, and BIM Service every 7 months. Most recently, Scientific Calculator was updated on October 17, 2026 and BIM Service on October 24, 2026.

---

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