# DuelTool vs Max Calc

The clearest difference is review sentiment: Max Calc at 100% against DuelTool's 50%. Max Calc also leads on rating (5.0 vs 1.0) and update cadence (every 9 days vs every 2 months). DuelTool's advantage is in-app purchases (none vs 2) and iOS requirement (7.0 vs 17.0). On price, ratings volume, ads and monetization model there is nothing between them.

Both are free to download. Max Calc sells 2 one-off in-app purchases. DuelTool asks for nothing beyond the download.

Max Calc holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 50% of DuelTool's written reviews are positive against 100% of Max Calc's.

DuelTool ships an update every 2 months, Max Calc every 9 days. The most recent releases landed on September 9, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | DuelTool | Max Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/dueltool/id836442259/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/max-calc/id6463495098/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Free | Free |
| Size | 1 MB | 8 MB |
| Requires iOS | **7.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [People Software Corporation](https://appshunter.io/developer/433853161) | [Anatolii Mazkun](https://appshunter.io/developer/1697280298) |

## What reviewers say

### 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


### Max Calc

[App page](https://appshunter.io/ios/app/max-calc/id6463495098)

This app offers a versatile calculation suite, combining standard, scientific, developer, and accounting functions. It also includes a unit converter and tools for health and date calculations, all within a user-friendly interface.

**Highlights:** Standard and Scientific Calculator, Developer Calculator (hex, binary), Accounting Calculator, 130+ Unit Converter, Body and Date/Time Calculator, History tracking, Customizable result formatting

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 days Free Using  All Premium | Free | one-time |
| Premium features | $4.99 | one-time |


## Frequently asked questions

### Is DuelTool free?

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

### Is Max Calc free?

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

### Which has better reviews, DuelTool or Max Calc?

Max Calc is rated higher. DuelTool averages 1.0 out of 5 from 1 ratings, while Max Calc averages 5.0 from 1 ratings.

### Do DuelTool or Max Calc have ads?

Neither DuelTool nor Max Calc shows ads.

### Which is updated more often, DuelTool or Max Calc?

DuelTool ships an update every 2 months, and Max Calc every 9 days. Most recently, DuelTool was updated on September 9, 2026 and Max Calc on June 4, 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.*