Comparison

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.

Head to head
About

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.

Highlights
  • Digital dice simulation
  • Tap to roll functionality
  • iMessage stickers
  • Apple Watch support
  • Apple Silicon compatibility
Features
Read full description

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.

About

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.

Highlights
  • Protein & Peptide Conversion
  • Nucleic Acid & Genomics Toolkit
  • Biochemistry & Solution Preparation
  • Microbiology & Cell Culture Tools
  • Buffer & Solution Preparation Library
  • Native iOS Performance
Features
Read full description

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

Just a Simple Dice App2 screens
Bio4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard6 real differences · 4 level
Just a Simple Dice App versus Bio: the parameters behind the verdict, then further details
ParameterJust a Simple Dice AppBio
Price$1.99Free — better
Rating5.0 (4 ratings)5.0 (2 ratings)
Positive reviews87.5% of reviews—
Number of ratings4 — better2
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPad, iPod, Apple TV, Apple Watch, Vision Pro — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size30 MB51 MB
Age rating4+4+
DeveloperBummo.Dev杰 吴

Customer experience

Just a Simple Dice App

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive87.5%
Neutral0.0%
Negative12.5%

Bio

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Just a Simple Dice App

No in-app purchases

3 purchases

Bio

Subscriptions2
  • Monthly Plan$2.991 Month
  • Yearly Plan$19.991 Year
One-time1
  • Lifetime member$44.99

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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