# Bio vs Liyn

The clearest difference is in-app purchases: Liyn at none against Bio's 3. Liyn also leads on update cadence (every 4 days vs every 2 weeks). On price, rating, ratings volume and ads there is nothing between them.

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

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

Bio ships an update every 2 weeks, Liyn every 4 days. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Bio | Liyn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/bio-calculator/id6498629520/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/liyn/id6751191151/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Freemium | **Free** |
| Size | 51 MB | 3 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [杰 吴](https://appshunter.io/developer/1729187814) | [Wai Man SIN](https://appshunter.io/developer/1786960385) |

## What reviewers say

### 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 |


### Liyn

[App page](https://appshunter.io/ios/app/liyn/id6751191151)

This AI assistant offers advanced multi-turn dialogue for problem-solving in writing, programming, translation, and academics. It supports photo, internet, and file searches for instant AI analysis.

**Highlights:** Multi-turn interactive dialogue, Problem formulation and solution, Writing assistance, Programming help, Translation support, Academic and work problem-solving, Photo and internet search, File upload analysis

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bio free?

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

### Is Liyn free?

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

### Which has better reviews, Bio or Liyn?

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

### Do Bio or Liyn have ads?

Neither Bio nor Liyn shows ads.

### Which is updated more often, Bio or Liyn?

Bio ships an update every 2 weeks, and Liyn every 4 days. Most recently, Bio was updated on October 24, 2026 and Liyn on October 8, 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.*