# MegaCalcBox vs DuelTool

The clearest difference is rating: MegaCalcBox at 4.7 against DuelTool's 1.0. MegaCalcBox also leads on review sentiment (89% vs 50%) and ratings volume (3 vs 1). DuelTool's advantage is in-app purchases (none vs 1) and iOS requirement (7.0 vs 16.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. MegaCalcBox sells 1 one-off in-app purchase. DuelTool asks for nothing beyond the download.

MegaCalcBox holds the better App Store score, 4.7 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 89% of MegaCalcBox's written reviews are positive against 50% of DuelTool's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on August 1, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | MegaCalcBox | DuelTool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/megacalcbox-multi-calculator/id405755454/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/dueltool/id836442259/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | **88.6% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Freemium | **Free** |
| Size | 12 MB | 1 MB |
| Requires iOS | 16.6 | **7.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Kind Park LLC](https://appshunter.io/developer/1887561843) | [People Software Corporation](https://appshunter.io/developer/433853161) |

## What reviewers say

### MegaCalcBox

[App page](https://appshunter.io/ios/app/megacalcbox-multi-calculator/id405755454)

This app offers over 35 professional calculators for finance, travel, health, utilities, and more. It features a clean design, smart tools like favorites and instant results, and operates completely offline with no data collection.

**Highlights:** 35+ professional calculators, Financial, travel, health, and utility tools, Offline operation, Smart features (favorites, instant results), Clean interface with dark mode, No ads or data collection

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MegaCalcBox Pro | $1.99 | one-time |


### DuelTool

[App page](https://appshunter.io/ios/app/dueltool/id836442259)

This utility helps manage life points and battle calculations for YU-GI-OH! duels. It features intuitive controls for increasing or decreasing life points, calculating battle damage, and supports special card effects. Additional functions include dice rolling, coin flips, and undo/reset options for a smoother gameplay experience.

**Highlights:** Life Point calculation, Battle Phase damage calculation, Special card effect support, Dice and coin support, Undo and reset functions, Customizable buttons

**In-app purchases:** none


## Frequently asked questions

### Is MegaCalcBox free?

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

### Is DuelTool free?

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

### Which has better reviews, MegaCalcBox or DuelTool?

MegaCalcBox is rated higher. MegaCalcBox averages 4.7 out of 5 from 3 ratings, while DuelTool averages 1.0 from 1 ratings.

### Do MegaCalcBox or DuelTool have ads?

Neither MegaCalcBox nor DuelTool shows ads.

### Which is updated more often, MegaCalcBox or DuelTool?

MegaCalcBox ships an update every 2 months, and DuelTool every 2 months. Most recently, MegaCalcBox was updated on August 1, 2026 and DuelTool on September 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.*