Comparison

DuelTool vs Numby

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

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.

Highlights
  • Life Point calculation
  • Battle Phase damage calculation
  • Special card effect support
  • Dice and coin support
  • Undo and reset functions
  • Customizable buttons
Read full description

[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.

About

Numby

Features
Read full description

Numby is a calculator reimagined with design at its core. Tired of cluttered, outdated calculator apps? Numby offers a refreshingly clean experience with bold, easy-to-read numbers and a thoughtfully minimal interface. Why Numby? Beautiful Typography โ€” Large, high-contrast display makes results instantly readable. Color-Coded Operators โ€” Blue for division, red for multiplication. Recognize operations at a glance. Minimal Design โ€” No clutter, no distractions. Just clean, focused calculations. Expression Preview โ€” See your current calculation below the result. Everyday tools deserve great design. Try Numby today.

Screenshots

DuelTool4 screens
Numby3 screens

Verdict

The call

The clearest difference is update cadence: Numby at every 2 days against DuelTool's every 2 months. DuelTool's advantage is iOS requirement (7.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DuelTool ships an update every 2 months, Numby every 2 days. The most recent releases landed on October 23, 2026 and October 14, 2026 respectively.

Scorecard2 real differences ยท 6 level
DuelTool versus Numby: the parameters behind the verdict, then further details
ParameterDuelToolNumby
PriceFreeFree
Positive reviews50.0% of reviewsโ€”
Update frequencyEvery 2 monthsEvery 2 days โ€” better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeโ€”
DevicesiPhone, iPod โ€” betteriPhone
Requires iOS7.0 โ€” better16.6
Further details โ€” not scored
Size1 MB16 MB
Age rating4+4+
DeveloperPeople Software CorporationTEAM MILESTONE GP.

In-app purchases

None

DuelTool

No in-app purchases

None

Numby

No in-app purchases

Questions

Is DuelTool free?
DuelTool is free to download, with no in-app purchases.
Is Numby free?
Numby is free to download, with no in-app purchases.
Do DuelTool or Numby have ads?
Neither DuelTool nor Numby shows ads.
Which is updated more often, DuelTool or Numby?
DuelTool ships an update every 2 months, and Numby every 2 days. Most recently, DuelTool was updated on October 23, 2026 and Numby on October 14, 2026.

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