# Calculator Smart vs Ez Bill

The clearest difference is review sentiment: Ez Bill at 90% against Calculator Smart's 36%. Ez Bill also leads on in-app purchases (none vs 3) and ads (none vs shown). Calculator Smart's advantage is rating (4.7 vs 4.4) and ratings volume (498 vs 37). On price there is nothing between them.

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

Calculator Smart holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Calculator Smart has 498 ratings behind it against 37, so its average is the more settled of the two. Written reviews complicate that: 36% of Calculator Smart's written reviews are positive against 90% of Ez Bill's, so the app with the better star average is not the one people write more warmly about.

Calculator Smart ships an update every 4 months, Ez Bill every 3 weeks. The most recent releases landed on November 6, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Calculator Smart | Ez Bill |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (498 ratings)](https://appshunter.io/ios/app/calculator-smart/id698030968/reviews)** | [4.4 (37 ratings)](https://appshunter.io/ios/app/ez-bill-tip-calculator/id734187671/reviews) |
| Number of ratings | **498** | 37 |
| Positive reviews | 36.4% of reviews | **89.8% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 24 MB | 47 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | **iPhone, iPad, iPod, Mac, Apple TV, Apple Watch** | iPhone, iPad, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Miroslav Otsedarski](https://appshunter.io/developer/450091139) | [Stefano Acerbetti](https://appshunter.io/developer/1053239548) |

## 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 |


### Ez Bill

[App page](https://appshunter.io/ios/app/ez-bill-tip-calculator/id734187671)

Effortlessly split bills and calculate tips with friends. This app simplifies group dining by automatically calculating each person's share, including tax and customizable tip percentages. Enjoy a user-friendly interface designed for low-light environments.

**Highlights:** Calculate individual bill and tip amounts, Pre-tax tip calculation, Split bills with up to 30 people, Customizable service-based tipping, Automatic US sales tax calculation, Today screen widget for quick access, Customizable backgrounds and tip labels

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 📱 Works on multiple devices (iPhone, iPad, Apple Watch)
- 💡 Calculates tax and tip automatically
- ✨ Clean and simple interface
- 📍 Location-based tax calculation

**What reviewers complain about**

- 🐛 Inaccurate math calculations
- 🐛 Incorrect tax rates for specific locations (CT)
- 🐛 Watch app issues (tip showing correctly, screen visibility)
- 🐛 Number pad on watch difficult to use
- 🐛 Swiping between percentages too sensitive

**Reported bugs**

- Math is wrong (e.g., 20% of $90 is not $16.59)
- Not pulling correct, current meal tax for CT
- Tip showing correctly issues on Apple Watch
- App locks up on Apple Watch
- Cannot see screen to adjust tax rate on Apple Watch

**Requested features**

- Add widgets
- Manually set CT meal tax
- Option to input untaxed amount and then tax/tip
- Include total tip and total bill
- Default widget party size to 1


## Frequently asked questions

### Is Calculator Smart free?

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

### Is Ez Bill free?

Ez Bill is free to download, with no in-app purchases.

### Which has better reviews, Calculator Smart or Ez Bill?

Calculator Smart is rated higher. Calculator Smart averages 4.7 out of 5 from 498 ratings, while Ez Bill averages 4.4 from 37 ratings.

### Do Calculator Smart or Ez Bill have ads?

Calculator Smart shows ads; Ez Bill does not.

### Which is updated more often, Calculator Smart or Ez Bill?

Calculator Smart ships an update every 4 months, and Ez Bill every 3 weeks. Most recently, Calculator Smart was updated on November 6, 2026 and Ez Bill on November 1, 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.*