Calculator Quest vs Digit Invader Calculator
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Calculator Quest
This app merges a functional calculator with role-playing game elements. It offers a "Calc mode" for standard calculations, a fast-typing number game, and a mental arithmetic challenge.
- Standard calculator functionality
- Fast-typing number game
- Mental arithmetic time attack
- RPG elements
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A calculator and an RPG combine to form a miraculous hybrid! Includes bonus quick-typing game and math game! ※Rest assured, this app also works as a calculator. - Use for regular calculator operations! Calc mode! - Type the numbers and symbols as fast as you can! Quickdraw Colosseum! - Try your hand at the “mental arithmetic” time attack mode in Mental Math Kingdom!
Digit Invader Calculator
This app combines a functional calculator with a retro arcade game inspired by classic calculator interfaces. It offers automatic game saving, a high score list, and multitasking support on iPads. A scaled-down version is also available for Apple Watch.
- Retro calculator game
- Basic calculator functions
- Automatic game save
- High score list
- iPad Stage Manager support
- Apple Watch version
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- The calculator includes basic functions, while the Digit Invader game replicates the old-school calculator gaming experience. - The game state is automatically saved when the user explicitly pauses or implicitly switches to a different app, allowing them to resume later. - A high score list is provided for users to challenge themselves. - Compatible with Stage Manager on supported iPads, enabling multitasking while having fun occasionally. - A special scaled-down version of Digit Invader is available for Apple Watch, allowing users to enjoy the game during exercise breaks or while waiting in line. - Localized in Japanese, Traditional Chinese, and Simplified Chinese..
Screenshots
Verdict
The clearest difference is rating: Digit Invader Calculator at 4.8 against Calculator Quest's 4.1. Digit Invader Calculator also leads on ads (none vs shown) and update cadence (every 9 days vs every 4 months). Calculator Quest's advantage is iOS requirement (15.0 vs 17.6). On price, ratings volume, in-app purchases and monetization model 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.
Digit Invader Calculator holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 14 and 12 respectively. Written reviews point the same way: 72% of Calculator Quest's written reviews are positive against 100% of Digit Invader Calculator's.
Calculator Quest ships an update every 4 months, Digit Invader Calculator every 9 days. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.
| Parameter | Calculator Quest | Digit Invader Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (14 ratings) | 4.8 (12 ratings) — better |
| Positive reviews | 72.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 14 — better | 12 |
| Update frequency | Every 4 months | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 9 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Masakazu Yonehara | Daniel Fu Keung Kwan |
Customer experience
Calculator Quest
Digit Invader Calculator
Bugs and requests
Calculator Quest
Reported bugs
4 issues- App crashes immediately after killing monsters
- Ads showing up on the top blocking off numbers
- App needs to be updated for iOS 11
- Can't use on new iPhone
Requested features
13 requests- Pay to remove ads option
- Offline play option
- More games to play
- Increase calculation level
- Add different calculation types (add, subtract, multiply, divide)
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- Add maps and companions for RPG elements
- Make game the main focus, not calculator
- Add hidden command games
- More gameplay features
- Enhance calculation function
- Make questions harder with progression
- Add items like skipping problems
- Update for newer iOS versions
Digit Invader Calculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator Quest
No in-app purchases
Digit Invader Calculator
No in-app purchases
Questions
Is Calculator Quest free?
Is Digit Invader Calculator free?
Which has better reviews, Calculator Quest or Digit Invader Calculator?
Do Calculator Quest or Digit Invader Calculator have ads?
Which is updated more often, Calculator Quest or Digit Invader Calculator?
Other comparisons
