Calculator Quest vs Nukleus
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!
Nukleus
Test your reflexes in this addictive single-tap game. Match the core's color to incoming objects to survive as long as possible. Compete with friends on the Game Center leaderboard.
- Single tap gameplay
- Color matching mechanic
- Requires quick reflexes
- Full concentration needed
- Game Center leaderboard
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Nukleus is an addictive single tap game that requires quick reflexes and full concentration. Tap to change color of the core to match the incoming objects. How long you can stay alive? Challenge your friends with Game Center leaderboard.
Screenshots
Verdict
The clearest difference is in-app purchases: Calculator Quest at none against Nukleus's 4. Nukleus's advantage is ads (none vs shown) and update cadence (every 5 days vs every 4 months). On price, rating, review sentiment and ratings volume 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. Nukleus sells 4 one-off in-app purchases. Calculator Quest asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.1 for Calculator Quest against 4.1 for Nukleus. Both are backed by a comparable volume of ratings — 14 and 28 respectively. Written reviews are what separate them: 72% of Calculator Quest's written reviews are positive against 67% of Nukleus's.
Calculator Quest ships an update every 4 months, Nukleus every 5 days. The most recent releases landed on October 29, 2026 and November 2, 2026 respectively.
| Parameter | Calculator Quest | Nukleus |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (14 ratings) | 4.1 (28 ratings) |
| Positive reviews | 72.3% of reviews — better | 67.3% of reviews |
| Number of ratings | 14 | 28 — better |
| Update frequency | Every 4 months | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Masakazu Yonehara | Umbrella Games LLC |
Customer experience
Calculator Quest
Nukleus
User reviews
Calculator Quest
From 14 App Store ratingsWhat we love
- 💡 Unique RPG calculator concept
- 👍 Fun and engaging gameplay
- 🎨 Cute and retro graphics
- 🎮 Good for learning math
- ✨ Original and interesting idea
Room to improve
- 😠 Intrusive ads
- 📉 Lack of RPG depth
- 🚫 No offline play option
- 👎 Ads block numbers
- 🤷♂️ Unclear RPG elements
Nukleus
From 28 App Store ratingsWhat we love
- 🤩 Addictive gameplay
- 🧠 Mind battling and challenging
- ⏱️ Great time killer
- ✨ Smooth gameplay
- 👍 Simple yet fun
Room to improve
- 😩 Too many ads
- ⏳ Ads are too long
- 😵 Difficulty for colorblind users
- 🎶 Cannot listen to own music
- 🔄 New version control disliked
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
Nukleus
Reported bugs
4 issues- App crashes on startup
- New scores not appearing on leaderboard
- Game closes immediately upon opening
- Game crashes after title screen
Requested features
6 requests- Allow listening to own music
- Option to buy out ads
- Adjust ad frequency
- Add textures for colorblind accessibility
- Hardcore mode for more challenge
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- Timer-based ads instead of per-game
In-app purchases
Calculator Quest
No in-app purchases
Nukleus
- Remove Ads$0.99
- 3000 Orbs$0.99
- 10,000 Orbs$1.99
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- 30,000 Orbs$2.99
