# 2581=? vs Calculator Quest

The clearest difference is review sentiment: Calculator Quest at 72% against 2581=?'s 22%. Calculator Quest also leads on rating (4.1 vs 2.3) and update cadence (every 4 months vs every 9 months). 2581=?'s advantage is ads (none vs shown) and iOS requirement (7.0 vs 13.0). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

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

Calculator Quest holds the better App Store score, 4.1 against 2.3. Both are backed by a comparable volume of ratings — 7 and 14 respectively. Written reviews point the same way: 22% of 2581=?'s written reviews are positive against 72% of Calculator Quest's.

2581=? ships an update every 9 months, Calculator Quest every 4 months. The most recent releases landed on October 11, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 2581=? | Calculator Quest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (7 ratings)](https://appshunter.io/ios/app/2581/id517654307/reviews) | **[4.1 (14 ratings)](https://appshunter.io/ios/app/calculator-quest/id562822539/reviews)** |
| Number of ratings | 7 | **14** |
| Positive reviews | 22.2% of reviews | **72.3% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 6 MB | 9 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RUCKYGAMES CO., LTD.](https://appshunter.io/developer/315948909) | [Masakazu Yonehara](https://appshunter.io/developer/1339210794) |

## What reviewers say

### 2581=?

[App page](https://appshunter.io/ios/app/2581/id517654307)

A simple puzzle game where players select the correct answer by tapping. It challenges users to think differently and rely on intuition rather than logic.

**Highlights:** Intuitive tap-based gameplay, Pattern recognition challenges, Minimalist design, Quick play sessions

**In-app purchases:** none


### Calculator Quest

[App page](https://appshunter.io/ios/app/calculator-quest/id562822539)

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.

**Highlights:** Standard calculator functionality, Fast-typing number game, Mental arithmetic time attack, RPG elements

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 Unique RPG calculator concept
- 👍 Fun and engaging gameplay
- 🎨 Cute and retro graphics
- 🎮 Good for learning math
- ✨ Original and interesting idea

**What reviewers complain about**

- 😠 Intrusive ads
- 📉 Lack of RPG depth
- 🚫 No offline play option
- 👎 Ads block numbers
- 🤷‍♂️ Unclear RPG elements

**Reported bugs**

- 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**

- Pay to remove ads option
- Offline play option
- More games to play
- Increase calculation level
- Add different calculation types (add, subtract, multiply, divide)


## Frequently asked questions

### Is 2581=? free?

2581=? is free to download, with no in-app purchases.

### Is Calculator Quest free?

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

### Which has better reviews, 2581=? or Calculator Quest?

Calculator Quest is rated higher. 2581=? averages 2.3 out of 5 from 7 ratings, while Calculator Quest averages 4.1 from 14 ratings.

### Do 2581=? or Calculator Quest have ads?

Calculator Quest shows ads; 2581=? does not.

### Which is updated more often, 2581=? or Calculator Quest?

2581=? ships an update every 9 months, and Calculator Quest every 4 months. Most recently, 2581=? was updated on October 11, 2026 and Calculator Quest on October 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*