# Smart Calculator vs RushCountdown

The clearest difference is in-app purchases: RushCountdown at none against Smart Calculator's 1. RushCountdown also leads on ads (none vs shown) and iOS requirement (16.0 vs 18.0). Smart Calculator's advantage is device support (3 vs 1). On price there is nothing between them.

Both are free to download. Smart Calculator sells 1 one-off in-app purchase. RushCountdown asks for nothing beyond the download.

## The numbers

| Metric | Smart Calculator | RushCountdown |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/smart-calculator-all-in-one/id6782349282/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | — |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 2 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Arima Jain](https://appshunter.io/developer/1679158070) | [旭东 关](https://appshunter.io/developer/1523053218) |

## What reviewers say

### Smart Calculator

[App page](https://appshunter.io/ios/app/smart-calculator-all-in-one/id6782349282)

This app is an all-in-one calculator and AI math assistant. It offers a wide range of calculation tools, unit converters, and AI-powered problem-solving with step-by-step explanations. It's designed for students, professionals, and everyday users needing quick, accurate results.

**Highlights:** AI Math Solver with step-by-step explanations, Camera-based Photo Math Solver, Standard, Scientific, and Financial Calculators, Extensive Unit and Currency Converters, Math Notes for organization and reference, Digital Compass and Calculation History, Offline functionality

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


### RushCountdown

[App page](https://appshunter.io/ios/app/rushcountdown/id6792314926)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart Calculator free?

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

### Is RushCountdown free?

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

### Do Smart Calculator or RushCountdown have ads?

Smart Calculator shows ads; RushCountdown does not.

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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.*