# CalcBox vs 출석왕

The clearest difference is in-app purchases: 출석왕 at none against CalcBox's 2. 출석왕 also leads on update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CalcBox sells 2 in-app purchases, starting at $0.99 per month. 출석왕 asks for nothing beyond the download.

CalcBox ships an update every 3 weeks, 출석왕 every 4 days. The most recent releases landed on November 12, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | CalcBox | 출석왕 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (384 ratings)](https://appshunter.io/ios/app/calcbox-all-in-one-calculator/id6480165885/reviews)** | — |
| Number of ratings | **384** | — |
| Positive reviews | 92.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 72 MB | 16 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Realbyte Inc.](https://appshunter.io/developer/560481813) | [Taemin Kim](https://appshunter.io/developer/1888391322) |

## What reviewers say

### CalcBox

[App page](https://appshunter.io/ios/app/calcbox-all-in-one-calculator/id6480165885)

This app combines numerous essential calculation tools into a single, user-friendly interface. It handles everything from basic arithmetic and unit conversions to financial planning, health tracking, and academic performance. Simplify your daily tasks with this comprehensive utility.

**Highlights:** Basic and scientific calculations, Extensive unit and currency conversion, Financial calculators (loan, deposit, tip, discount), Health and fitness trackers (BMI, ovulation), Time and date calculations (D-Day, world clock), Academic tools (GPA calculator)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $0.99 | per month |
| 1 Year Subscription | $9.99 | per year |

**What reviewers like**

- ✨ All-in-one calculator with comprehensive features
- 👍 User-friendly and intuitive interface
- 🆓 Free app with no mandatory payments
- 🔄 Unit conversion capabilities (currency, distance, weight, etc.)
- 📊 Calculation history tracking

**What reviewers complain about**

- 📢 Excessive and intrusive advertisements
- 🚫 No option to remove ads permanently
- 😤 Ads cannot be closed easily
- 💳 Subscription model instead of one-time payment
- 🔄 Ad rotation with deceptive content

**Reported bugs**

- Ads cannot be closed with X button
- Excessive ads appearing after initial use period
- Deceptive ad behavior after one week of use

**Requested features**

- One-time payment option to remove ads permanently
- Premium ad-free version (like Money Manager app)
- Set as default calculator option
- Deposit/savings calculator with day-level precision
- Bitcoin/cryptocurrency support


### 출석왕

[App page](https://appshunter.io/ios/app/id6777592605)

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

**In-app purchases:** none


## Frequently asked questions

### Is CalcBox free?

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

### Is 출석왕 free?

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

### Do CalcBox or 출석왕 have ads?

Both CalcBox and 출석왕 show ads.

### Which is updated more often, CalcBox or 출석왕?

CalcBox ships an update every 3 weeks, and 출석왕 every 4 days. Most recently, CalcBox was updated on November 12, 2026 and 출석왕 on November 5, 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.*