# OptoSphere AR Experience vs QuizSpark Pro

The clearest difference is iOS requirement: OptoSphere AR Experience at 12.0 against QuizSpark Pro's 15.6. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | OptoSphere AR Experience | QuizSpark Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (1.9K ratings)](https://appshunter.io/ios/app/quizspark-pro/id6752763599/reviews)** |
| Number of ratings | — | **1.9K** |
| Positive reviews | — | 78.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Free |
| Size | 436 MB | 150 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OPTMEDIA CREATIVE STUDIO INC](https://appshunter.io/developer/1143950087) | [永欣 潘](https://appshunter.io/developer/1837689296) |

## What reviewers say

### OptoSphere AR Experience

[App page](https://appshunter.io/ios/app/optosphere-ar-experience/id6737808653)

**Features:** macOS Compatibility

**In-app purchases:** none


### QuizSpark Pro

[App page](https://appshunter.io/ios/app/quizspark-pro/id6752763599)

Engage in a trivia adventure where knowledge is rewarded. Answer questions across various subjects to earn coins and unlock achievements. The app features adaptive difficulty and daily rewards to keep you motivated and learning.

**Highlights:** Reward-driven quizzes, Progressive challenge path, Achievement badge system, Daily streak rewards, Limited-time challenges, Gamified self-improvement

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Good game
- 👍 Fun quiz game
- 👍 Thoughtful questions
- 👍 Good graphics
- 👍 Quick payout

**What reviewers complain about**

- 🐛 Keeps asking same questions
- 💡 Withdrawal limit too low

**Reported bugs**

- Keeps asking same questions
- App not working properly

**Requested features**

- Improve payout system
- Fix app issues


## Frequently asked questions

### Is OptoSphere AR Experience free?

OptoSphere AR Experience is free to download, with no in-app purchases.

### Is QuizSpark Pro free?

QuizSpark Pro is free to download, with no in-app purchases.

### Do OptoSphere AR Experience or QuizSpark Pro have ads?

Neither OptoSphere AR Experience nor QuizSpark Pro shows ads.

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