# Quiz Sound Effect vs Custom Prediction ~ 自由に予言できる

The clearest difference is price: Quiz Sound Effect at Free against Custom Prediction ~ 自由に予言できる's $1.99. Custom Prediction ~ 自由に予言できる's advantage is ads (none vs shown) and update cadence (every 6 weeks vs every 3 months). On in-app purchases and device support there is nothing between them.

Quiz Sound Effect is free to download; Custom Prediction ~ 自由に予言できる costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Quiz Sound Effect ships an update every 3 months, Custom Prediction ~ 自由に予言できる every 6 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Quiz Sound Effect | Custom Prediction ~ 自由に予言できる |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/quiz-sound-effect/id1601668405/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Ad-supported | — |
| Size | 16 MB | 42 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) | [Moving Squad Inc.](https://appshunter.io/developer/1004830155) |

## What reviewers say

### Quiz Sound Effect

[App page](https://appshunter.io/ios/app/quiz-sound-effect/id1601668405)

Access a collection of sound effects commonly used in quizzes. Includes sounds for questions, thinking, correct/incorrect answers, and various other cues. Ideal for enhancing quiz experiences.

**Highlights:** Question sounds, Thinking sounds, Correct answer sounds, Incorrect answer sounds, Bell sounds, Win sounds, Applause sounds

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Custom Prediction ~ 自由に予言できる

[App page](https://appshunter.io/ios/app/custom-prediction/id6459885605)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Quiz Sound Effect free?

Quiz Sound Effect is free to download, with no in-app purchases.

### Is Custom Prediction ~ 自由に予言できる free?

Custom Prediction ~ 自由に予言できる costs $1.99, with no in-app purchases.

### Do Quiz Sound Effect or Custom Prediction ~ 自由に予言できる have ads?

Quiz Sound Effect shows ads; Custom Prediction ~ 自由に予言できる does not.

### Which is updated more often, Quiz Sound Effect or Custom Prediction ~ 自由に予言できる?

Quiz Sound Effect ships an update every 3 months, and Custom Prediction ~ 自由に予言できる every 6 weeks. Most recently, Quiz Sound Effect was updated on November 3, 2026 and Custom Prediction ~ 自由に予言できる on October 30, 2026.

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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.*