# 学霸君 vs Bio

The clearest difference is in-app purchases: 学霸君 at none against Bio's 3. 学霸君 also leads on iOS requirement (9.0 vs 17.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Bio sells 3 in-app purchases, starting at $2.99 per month. 学霸君 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for 学霸君 against 5.0 for Bio. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Both ship on a similar rhythm, roughly every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | 学霸君 | Bio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/id1609773159/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/bio-calculator/id6498629520/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | **Free** | Freemium |
| Size | 23 MB | 51 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [晓鹏 杨](https://appshunter.io/developer/1436797152) | [杰 吴](https://appshunter.io/developer/1729187814) |

## What reviewers say

### 学霸君

[App page](https://appshunter.io/ios/app/id1609773159)

This app utilizes the Ebbinghaus forgetting curve to create personalized vocabulary review plans, helping users master a vast amount of words. It includes word lists for various English proficiency levels and exams, aiding in improving speaking, listening, reading, and writing skills.

**Highlights:** Ebbinghaus memory curve for vocabulary, Personalized review plans, Extensive word lists for various exams, Improve speaking, listening, reading, writing, Supports multiple English proficiency levels

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

**In-app purchases:** none


### Bio

[App page](https://appshunter.io/ios/app/bio-calculator/id6498629520)

This scientific assistant provides researchers and students with essential tools for everyday lab calculations. It offers modules for protein and nucleic acid conversions, solution preparation, microbiology, and buffer recipes. Streamline your laboratory workflow with precise and efficient scientific computations.

**Highlights:** Protein & Peptide Conversion, Nucleic Acid & Genomics Toolkit, Biochemistry & Solution Preparation, Microbiology & Cell Culture Tools, Buffer & Solution Preparation Library, Native iOS Performance

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $2.99 | per month |
| Yearly Plan | $19.99 | per year |
| Lifetime member | $44.99 | one-time |


## Frequently asked questions

### Is 学霸君 free?

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

### Is Bio free?

Bio is free to download, with in-app purchases available.

### Which has better reviews, 学霸君 or Bio?

学霸君 and Bio are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do 学霸君 or Bio have ads?

Neither 学霸君 nor Bio shows ads.

### Which is updated more often, 学霸君 or Bio?

学霸君 ships an update every 2 weeks, and Bio every 2 weeks. Most recently, 学霸君 was updated on October 24, 2026 and Bio on October 24, 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.*