# BARTEOS BTE vs Calculator Express with Notes

The clearest difference is in-app purchases: BARTEOS BTE at none against Calculator Express with Notes's 2. BARTEOS BTE also leads on ads (none vs shown) and iOS requirement (11.0 vs 14.0). Calculator Express with Notes's advantage is update cadence (monthly vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Calculator Express with Notes sells 2 one-off in-app purchases. BARTEOS BTE asks for nothing beyond the download.

BARTEOS BTE ships an update every 2 months, Calculator Express with Notes monthly. The most recent releases landed on September 10, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | BARTEOS BTE | Calculator Express with Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (43 ratings)](https://appshunter.io/ios/app/calculator-express-with-notes/id1604079825/reviews)** |
| Number of ratings | — | **43** |
| Positive reviews | — | 69.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 38 MB | 28 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [BTE AUSTRALIA PTY LTD](https://appshunter.io/developer/1577960732) | [RAMAN KHVASHCHEUSKI](https://appshunter.io/developer/1437493298) |

## What reviewers say

### BARTEOS BTE

[App page](https://appshunter.io/ios/app/barteos-bte/id1577960730)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calculator Express with Notes

[App page](https://appshunter.io/ios/app/calculator-express-with-notes/id1604079825)

A beautifully designed utility app offering six essential tools, including currency, unit, and percentage converters, plus calculators for BMI, tips, and world time. Users can customize the app's appearance and manage calculation history with notes and labels.

**Highlights:** Currency converter, Unit converter, Percentage calculator, BMI calculator, Tip calculator, World time converter, Customizable appearance, Calculation history with notes

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads -50% off | $1.99 | one-time |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is BARTEOS BTE free?

BARTEOS BTE is free to download, with no in-app purchases.

### Is Calculator Express with Notes free?

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

### Do BARTEOS BTE or Calculator Express with Notes have ads?

Calculator Express with Notes shows ads; BARTEOS BTE does not.

### Which is updated more often, BARTEOS BTE or Calculator Express with Notes?

BARTEOS BTE ships an update every 2 months, and Calculator Express with Notes monthly. Most recently, BARTEOS BTE was updated on September 10, 2026 and Calculator Express with Notes on August 19, 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.*