# Calculator Smart vs ETracking Expense

The clearest difference is in-app purchases: ETracking Expense at none against Calculator Smart's 3. ETracking Expense also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 4 months). Calculator Smart's advantage is device support (6 vs 3). On price and iOS requirement there is nothing between them.

Both are free to download. Calculator Smart sells 3 one-off in-app purchases. ETracking Expense asks for nothing beyond the download.

Calculator Smart ships an update every 4 months, ETracking Expense every 3 weeks. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Calculator Smart | ETracking Expense |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (494 ratings)](https://appshunter.io/ios/app/calculator-smart/id698030968/reviews)** | — |
| Number of ratings | **494** | — |
| Positive reviews | 36.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 21 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod, Mac, Apple TV, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Miroslav Otsedarski](https://appshunter.io/developer/450091139) | [vinh pham](https://appshunter.io/developer/1477047764) |

## What reviewers say

### Calculator Smart

[App page](https://appshunter.io/ios/app/calculator-smart/id698030968)

This app offers a powerful and precise calculator for everyday math and advanced scientific computations. It features a clean interface with large buttons, supporting complex equations, multiple modes, and intuitive input methods. Personalize your experience with colorful skins and custom icons.

**Highlights:** 30+ scientific operations, Degrees and Radians support, Parentheses and nested equations, Intuitive input with slide-to-delete, Copy & Paste results, Apple Watch app and Lock Screen Widget, Colorful skins and custom icons

**Features:** Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Colorful Skins and Remove Ads | $1.99 | one-time |
| Colorful Skins | $1.99 | one-time |
| Colorful Skins for Mac app | $1.99 | one-time |


### ETracking Expense

[App page](https://appshunter.io/ios/app/etracking-expense/id6756063858)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculator Smart free?

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

### Is ETracking Expense free?

ETracking Expense is free to download, with no in-app purchases.

### Do Calculator Smart or ETracking Expense have ads?

Calculator Smart shows ads; ETracking Expense does not.

### Which is updated more often, Calculator Smart or ETracking Expense?

Calculator Smart ships an update every 4 months, and ETracking Expense every 3 weeks. Most recently, Calculator Smart was updated on October 11, 2026 and ETracking Expense 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.*