Just a Simple Dice App vs Bio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Just a Simple Dice App
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.
- Digital dice simulation
- Tap to roll functionality
- iMessage stickers
- Apple Watch support
- Apple Silicon compatibility
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Do you need one tiny die but can't find one when you really need it? Here is a simple dice app to help. You don't need to roll your device. Just tap. Also provides: - Apple Watch support. - Apple Vision Pro support. - Apple TV support. - Apple Silicon support. - iMessage stickers.
Bio
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.
- Protein & Peptide Conversion
- Nucleic Acid & Genomics Toolkit
- Biochemistry & Solution Preparation
- Microbiology & Cell Culture Tools
- Buffer & Solution Preparation Library
- Native iOS Performance
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Bio-Calculator 2.0 is a professional mobile application tailored for researchers, students, biotech developers, and laboratory professionals. More than just a toolset, it is your high-efficiency scientific assistant at the laboratory bench. 【Comprehensive Feature Modules】 1. Protein & Peptide Conversion • Precisely convert between Protein Size (kDa), Mass (mg), and Moles (nmol). • Estimate DNA/mRNA coding capacity based on protein molecular weight. • Protein Molarity conversion with built-in common protein data. 2. Nucleic Acid & Genomics Toolkit • Sequence MW Calculation: Input DNA/RNA sequences to automatically obtain molecular weight and GC content. • Molar Conversions: Switch between nucleic acid length (bp/nt), mass, and moles. • Absorbance Conversion: Quickly convert OD260 readings into nucleic acid mass concentration. • Ligation Reaction: Intelligently calculate vector-to-insert molar ratios for cloning experiments. • Nucleic Acid Concentration: Convert between mass concentration and molarity. 3. Biochemistry & Solution Preparation • Molarity Calculator: Built-in database of thousands of compounds and reagents for instant mass and concentration calculations. • Dilution Calculator: Full support for C1V1 = C2V2 calculations across various concentration units. • Centrifugation: Precise conversion between Relative Centrifugal Force (RCF/g) and Revolutions Per Minute (RPM) based on rotor radius. • Temperature Units: Covers various scales including Celsius, Fahrenheit, and Kelvin. • Molecular Weight: Calculate accurate MW based on compound formulas. • Concentration Conversion: Switch between mass concentration and molarity for solutions. 4. Microbiology & Cell Culture • Growth Prediction: Predict microbial doubling time based on two OD measurements. • CFU Counter: Automatically process serial dilution data to calculate viable cell concentration. • TCID50: Essential Tissue Culture Infectious Dose calculations for virology. • Dilution Planning: Strategic planning for colony counting dilutions. 5. Massive Buffer & Solution Preparation Library Step-by-step preparation guides for 100+ standard lab solutions: • Stock Solutions: EDTA, Tris-Cl, DTT, IPTG, ATP, HEPES, and more (includes sterilization and storage advice). • Buffer Systems: PBS, D-PBS, TAE, TBE, RIPA Lysis, Co-IP, SSPE, etc. • Each guide includes component ratios, sterilization methods (Autoclave vs. Filter), storage temperatures, and safety precautions. Why choose BioCalculator 2.0? • Native Performance: Built natively for iOS with a modern, intuitive UI and silky-smooth operation. • Industry Focused: From biotech startups to academic labs, our tools fit your daily workflow perfectly. • Global Science Calculator: Unique floating window design allows you to access scientific calculations from anywhere. • Laboratory Precision: Say goodbye to floating-point errors and embrace professional scientific accuracy. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Just a Simple Dice App | Bio |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (4 ratings) | 5.0 (2 ratings) |
| Positive reviews | 87.5% of reviews | — |
| Number of ratings | 4 — better | 2 |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPad, iPod, Apple TV, Apple Watch, Vision Pro — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 30 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Bummo.Dev | 杰 吴 |
Customer experience
Just a Simple Dice App
Bio
In-app purchases
Just a Simple Dice App
No in-app purchases
Bio
- Monthly Plan$2.991 Month
- Yearly Plan$19.991 Year
- Lifetime member$44.99









