# Study Buddy Guru vs NOS Teacher App

The clearest difference is in-app purchases: NOS Teacher App at none against Study Buddy Guru's 12. NOS Teacher App also leads on ads (none vs shown). Study Buddy Guru's advantage is update cadence (monthly vs every 15 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Study Buddy Guru sells 12 in-app purchases, starting at $0.29 per month. NOS Teacher App asks for nothing beyond the download.

Study Buddy Guru ships an update monthly, NOS Teacher App every 15 months. The most recent releases landed on September 18, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Study Buddy Guru | NOS Teacher App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/study-buddy-guru-learn-stem/id1574450368/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 15 months |
| Monetization | Free with in-app purchases | — |
| Size | 99 MB | 15 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [ADIMPRESSION PTE. LTD.](https://appshunter.io/developer/879924923) | [The Solutions Unit (TSU) / Part of Shnoudi Trading Co. (STC)](https://appshunter.io/developer/796964392) |

## 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 |


### NOS Teacher App

[App page](https://appshunter.io/ios/app/nos-teacher-app/id6477440140)

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

**In-app purchases:** none


## Frequently asked questions

### Is Study Buddy Guru free?

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

### Is NOS Teacher App free?

NOS Teacher App is free to download, with no in-app purchases.

### Do Study Buddy Guru or NOS Teacher App have ads?

Study Buddy Guru shows ads; NOS Teacher App does not.

### Which is updated more often, Study Buddy Guru or NOS Teacher App?

Study Buddy Guru ships an update monthly, and NOS Teacher App every 15 months. Most recently, Study Buddy Guru was updated on September 18, 2026 and NOS Teacher App on October 2, 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.*