# Just a Simple Dice App vs Bio

The clearest difference is price: Bio at Free against Just a Simple Dice App's $1.99. Bio also leads on update cadence (every 2 weeks vs monthly). Just a Simple Dice App's advantage is in-app purchases (none vs 3) and device support (6 vs 2). On rating, ratings volume and ads there is nothing between them.

Bio is free to download; Just a Simple Dice App costs $1.99 up front. Bio sells 3 in-app purchases, starting at $2.99 per month. Just a Simple Dice App asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Just a Simple Dice App against 5.0 for Bio. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

Just a Simple Dice App ships an update monthly, Bio every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Just a Simple Dice App | Bio |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/just-a-simple-dice-app/id989101771/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/bio-calculator/id6498629520/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Paid | **Freemium** |
| Size | 30 MB | 51 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple TV, Apple Watch, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bummo.Dev](https://appshunter.io/developer/918897632) | [杰 吴](https://appshunter.io/developer/1729187814) |

## What reviewers say

### Just a Simple Dice App

[App page](https://appshunter.io/ios/app/just-a-simple-dice-app/id989101771)

This utility app provides a simple and convenient way to simulate dice rolls. It offers iMessage stickers and supports Apple Watch for on-the-go use. Perfect for when you need a quick, hassle-free dice roll.

**Highlights:** Digital dice simulation, Tap to roll functionality, iMessage stickers, Apple Watch support, Apple Silicon compatibility

**Features:** macOS Compatibility, Apple Watch app, iMessage stickers

**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 Just a Simple Dice App free?

Just a Simple Dice App costs $1.99, with no in-app purchases.

### Is Bio free?

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

### Which has better reviews, Just a Simple Dice App or Bio?

Just a Simple Dice App and Bio are both rated 5.0 out of 5 on the App Store, from 4 and 2 ratings respectively.

### Do Just a Simple Dice App or Bio have ads?

Neither Just a Simple Dice App nor Bio shows ads.

### Which is updated more often, Just a Simple Dice App or Bio?

Just a Simple Dice App ships an update monthly, and Bio every 2 weeks. Most recently, Just a Simple Dice App 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.*