Calculator mini vs Bio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator mini
A straightforward calculator app featuring a clean design. It offers essential calculation functions, a history log, and home screen widget support for quick access. Enjoy a seamless and elegant user experience for your everyday calculations.
- Basic calculation functions
- Combination calculation
- History records
- Home screen widgets
- Sleek design
Read full descriptionHide full description
Calculator mini is a simple calculator tool designed with a sleek and elegant design language. We hope you will like it. - Quick Preview - · Basic Calculation Functions · Combination Calc · History Records · Support for Home Screen Widgets - More Information - · Privacy Policy: https://tdpezpb5hr.feishu.cn/docx/OjEKdqLN8oRcUOxYfq2cBZ1incg · Terms of Use: https://tdpezpb5hr.feishu.cn/docx/HAW9dnsetokuOGxFIYScZqzbnJb
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
Read full descriptionHide 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
Verdict
The clearest difference is rating: Bio at 5.0 against Calculator mini's 4.2. Calculator mini's advantage is update cadence (every 2 days vs every 2 weeks) and monetization model (free vs freemium). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Calculator mini sells 1 one-off in-app purchase and Bio sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Bio holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 5 and 2 respectively.
Calculator mini ships an update every 2 days, Bio every 2 weeks. The most recent releases landed on October 11, 2026 and October 15, 2026 respectively.
| Parameter | Calculator mini | Bio |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (5 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | 2 |
| Update frequency | Every 2 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | 鑫 吴 | 杰 吴 |
Customer experience
Calculator mini
Bio
In-app purchases
Calculator mini
- Calculator mini · Pro$0.99
Bio
- Monthly Plan$2.991 Month
- Yearly Plan$19.991 Year
- Lifetime member$44.99









