DuelTool vs Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DuelTool
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.
- Life Point calculation
- Battle Phase damage calculation
- Special card effect support
- Dice and coin support
- Undo and reset functions
- Customizable buttons
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[Features of the application] This is a tool to use when the duel in YU-GI-OH!. Can calculate the Life Points of the player. [How to use] When the bar is red, Life Points will reduce. Conversely, When the bar is blue, Life Points will increase. If you tap the Life Points part, you can change the player to reduce the Life Points. [Other Functions] Calculation of the Battle Phase damage.(VS button) Supports Shrinka and Solemn Judgment.(1/2 button) Supports dice and coin. Supports undo and reset. Can customize the upper 3 buttons from setting screen. Come on, let's start duel! #This app and developers, have no relationship with KAZUKI TAKAHASHI/SHUEISHA /KONAMI.
Calculator
This universal calculator offers traditional functions plus advanced features like equation solving, geometric calculations, and derivative work. Its smart scanner can read math from text, making it ideal for students and daily use.
- Equation solving
- Geometric calculations
- Derivative calculations
- Smart scanner for text input
- Traditional calculator functions
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Andulator is a universal calculator designed for college and school students, as well as anyone who needs a reliable calculator in daily life. It provides all the traditional functionalities and much more: • Solve equations easily • Perform geometric calculations • Work with derivatives • Use the built-in smart scanner to instantly read numbers and operation symbols from handwritten or printed text Andulator combines powerful features with simplicity, making it the perfect tool for both learning and everyday use.
Screenshots
Verdict
The clearest difference is rating: Calculator at 5.0 against DuelTool's 1.0. Calculator also leads on update cadence (every 8 days vs every 2 months). DuelTool's advantage is iOS requirement (7.0 vs 17.0). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Calculator holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
DuelTool ships an update every 2 months, Calculator every 8 days. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.
| Parameter | DuelTool | Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 2 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 7.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | People Software Corporation | Bytesly Technologies, LLC |
Customer experience
DuelTool
Calculator
In-app purchases
DuelTool
No in-app purchases
Calculator
No in-app purchases
