# Study Buddy Guru vs Grade 9 Biology Quiz

The clearest difference is rating: Grade 9 Biology Quiz at 5.0 against Study Buddy Guru's 4.2. Grade 9 Biology Quiz also leads on iOS requirement (12.0 vs 15.6). Study Buddy Guru's advantage is ratings volume (5 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Study Buddy Guru sells 12 in-app purchases, starting at $0.29 per month and Grade 9 Biology Quiz sells 7 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Grade 9 Biology Quiz holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Study Buddy Guru has 5 ratings behind it against 1, so its average is the more settled of the two.

Study Buddy Guru ships an update monthly, Grade 9 Biology Quiz every 3 weeks. The most recent releases landed on September 18, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Study Buddy Guru | Grade 9 Biology Quiz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (5 ratings)](https://appshunter.io/ios/app/study-buddy-guru-learn-stem/id1574450368/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/grade-9-biology-quiz/id1574976416/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 99 MB | 68 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [ADIMPRESSION PTE. LTD.](https://appshunter.io/developer/879924923) | [Arshad Iqbal](https://appshunter.io/developer/1547001151) |

## What reviewers say

### Study Buddy Guru

[App page](https://appshunter.io/ios/app/study-buddy-guru-learn-stem/id1574450368)

This app provides engaging video lessons and interactive quizzes to help students master chemistry, biology, and science. It offers personalized feedback and explanations to guide learning at your own pace, aiming to improve academic performance.

**Highlights:** Engaging video lessons, Automated progress feedback, Helpful concept explanations, Quizzes and challenges, Study at your own pace, Personalized learning guidance

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Biology - Learn Slow Paced | $0.29 | per month |
| Science - Learn Slow Paced | $0.29 | per month |
| Mathematics - Learn Slow Paced | $0.49 | per month |
| Mathematics - Learn Medium Paced | $0.99 | per month |
| Biology - Learn Medium Paced | $0.99 | per month |
| Science - Learn Medium Paced | $0.99 | per month |
| Mathematics - Learn Fast Paced | $1.99 | per month |
| Biology - Learn Fast Paced | $3.99 | per month |
| Science - Learn Fast Paced | $3.99 | per month |
| Chemistry - Learn Slow Paced | $5.99 | per month |
| Chemistry - Learn Medium Paced | $6.99 | per month |
| Chemistry - Learn Fast Paced | $9.99 | per month |


### Grade 9 Biology Quiz

[App page](https://appshunter.io/ios/app/grade-9-biology-quiz/id1574976416)

Practice over 1500 biology multiple-choice questions with this app. It covers grade 9 biology topics, offering self-assessment tests and revision notes for online learning and homeschooling.

**Highlights:** 1500+ biology MCQs, Self-assessment tests, Revision notes, Grade 9 biology curriculum, Homeschooling support, Chapter-wise quizzes

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Package | $4.99 | per month |
| 3 Months Package | $9.99 | per 3 months |
| 6 Months Package | $14.99 | per 6 months |
| 1 Year Package | $19.99 | per year |
| 1500 Coins | $0.99 | one-time |
| 3500 Coins | $1.99 | one-time |
| 6000 Coins | $2.99 | one-time |


## Frequently asked questions

### Is Study Buddy Guru free?

Study Buddy Guru is free to download, with in-app purchases available.

### Is Grade 9 Biology Quiz free?

Grade 9 Biology Quiz is free to download, with in-app purchases available.

### Which has better reviews, Study Buddy Guru or Grade 9 Biology Quiz?

Grade 9 Biology Quiz is rated higher. Study Buddy Guru averages 4.2 out of 5 from 5 ratings, while Grade 9 Biology Quiz averages 5.0 from 1 ratings.

### Do Study Buddy Guru or Grade 9 Biology Quiz have ads?

Both Study Buddy Guru and Grade 9 Biology Quiz show ads.

### Which is updated more often, Study Buddy Guru or Grade 9 Biology Quiz?

Study Buddy Guru ships an update monthly, and Grade 9 Biology Quiz every 3 weeks. Most recently, Study Buddy Guru was updated on September 18, 2026 and Grade 9 Biology Quiz on June 4, 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.*