# DuelTool vs CalcBoard

The clearest difference is in-app purchases: DuelTool at none against CalcBoard's 1. DuelTool also leads on iOS requirement (7.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

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

DuelTool ships an update every 2 months, CalcBoard every 3 months. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | DuelTool | CalcBoard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/dueltool/id836442259/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 1 MB | 50 MB |
| Requires iOS | **7.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [People Software Corporation](https://appshunter.io/developer/433853161) | [Colby Clark](https://appshunter.io/developer/1110053823) |

## 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


### CalcBoard

[App page](https://appshunter.io/ios/app/calcboard-multi-calculator/id6759535339)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalcBoard Premium | $2.99 | one-time |


## Frequently asked questions

### Is DuelTool free?

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

### Is CalcBoard free?

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

### Do DuelTool or CalcBoard have ads?

Neither DuelTool nor CalcBoard shows ads.

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

DuelTool ships an update every 2 months, and CalcBoard every 3 months. Most recently, DuelTool was updated on October 13, 2026 and CalcBoard on October 16, 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.*