# Science Quiz & Knowledge Test vs Yestor

The clearest difference is in-app purchases: Yestor at none against Science Quiz & Knowledge Test's 5. Yestor also leads on ads (none vs shown) and rating (5.0 vs 4.7). Science Quiz & Knowledge Test's advantage is ratings volume (46 vs 6) and device support (3 vs 1). On price and review sentiment there is nothing between them.

Both are free to download. Science Quiz & Knowledge Test sells 5 in-app purchases, starting at $1.99 per 7 days. Yestor asks for nothing beyond the download.

Yestor holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Science Quiz & Knowledge Test has 46 ratings behind it against 6, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Science Quiz & Knowledge Test ships an update every 5 weeks, Yestor every 9 days. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Science Quiz & Knowledge Test | Yestor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (46 ratings)](https://appshunter.io/ios/app/science-quiz-and-knowledge-test/id1142302901/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/yestor/id6765753270/reviews)** |
| Number of ratings | **46** | 6 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 127 MB | 104 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Asad Shoaib](https://appshunter.io/developer/1142302870) | [Ryan Clark](https://appshunter.io/developer/1896001653) |

## What reviewers say

### Science Quiz & Knowledge Test

[App page](https://appshunter.io/ios/app/science-quiz-and-knowledge-test/id1142302901)

Engage with thousands of science questions across various disciplines. This interactive trivia game offers detailed explanations, multiple play modes, and progress tracking to enhance your scientific knowledge and critical thinking skills.

**Highlights:** Thousands of science questions, Detailed explanations for each question, Multiple play modes (Solo, Multiplayer), Science Knowledge Score tracking, Exam preparation assistance, Achievements and leaderboards

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro - No Ads & Unlock Topics | $1.99 | per 7 days |
| Pro - No Ads & Unlock Topics | $5.99 | per month |
| Pro - No Ads & Unlock Topics | $19.99 | per year |
| Reset Timer | $0.99 | one-time |
| Half Eliminator | $0.99 | one-time |


### Yestor

[App page](https://appshunter.io/ios/app/yestor/id6765753270)

Test your historical knowledge with a daily guessing game. Pinpoint the year of a historical event using clues and earn points for precision. Unlock rewards and compete on the leaderboard.

**Highlights:** Daily historical guessing game, Pinpoint event years, Clue-based gameplay, Score points for precision, Unlockable app icons, Global leaderboard

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

**In-app purchases:** none


## Frequently asked questions

### Is Science Quiz & Knowledge Test free?

Science Quiz & Knowledge Test is free to download, with in-app purchases available.

### Is Yestor free?

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

### Which has better reviews, Science Quiz & Knowledge Test or Yestor?

Yestor is rated higher. Science Quiz & Knowledge Test averages 4.7 out of 5 from 46 ratings, while Yestor averages 5.0 from 6 ratings.

### Do Science Quiz & Knowledge Test or Yestor have ads?

Science Quiz & Knowledge Test shows ads; Yestor does not.

### Which is updated more often, Science Quiz & Knowledge Test or Yestor?

Science Quiz & Knowledge Test ships an update every 5 weeks, and Yestor every 9 days. Most recently, Science Quiz & Knowledge Test was updated on November 2, 2026 and Yestor on October 25, 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.*