Comparison

oMeoo vs Bio

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

oMeoo

Features
Read full description

Introduction: oMeoo is a tailor-made diary app for iOS users. It allows for quick recording of daily life events and helps in managing reminders for important occurrences. Key Features: 1. Quick Recording: Capture your life moments with a single tap. Event Reminders: Never miss any important events. Clean Interface: User-friendly and straightforward. Data Security: Ensuring the privacy of your data. Use Cases: Whether it's for keeping track of daily chores or reminders for significant meetings, oMeoo makes it easy to manage. Suitable for all iOS users needing recording and reminder functions

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

oMeoo4 screens
Bio4 screens

Verdict

The call

The clearest difference is in-app purchases: oMeoo at none against Bio's 3. Bio's advantage is update cadence (every 2 weeks vs monthly). On price, ads, device support and iOS requirement 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

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

UpkeepUpdate frequency

oMeoo ships an update monthly, Bio every 2 weeks. The most recent releases landed on May 19, 2026 and September 11, 2026 respectively.

Scorecard2 real differences · 7 level
oMeoo versus Bio: the parameters behind the verdict, then further details
ParameteroMeooBio
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better17.0
Further details — not scored
Size15 MB51 MB
Age rating17+4+
Developer东举 杨杰 吴

In-app purchases

None

oMeoo

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 oMeoo free?
oMeoo is free to download, with no in-app purchases.
Is Bio free?
Bio is free to download, with in-app purchases available.
Do oMeoo or Bio have ads?
Neither oMeoo nor Bio shows ads.
Which is updated more often, oMeoo or Bio?
oMeoo ships an update monthly, and Bio every 2 weeks. Most recently, oMeoo was updated on May 19, 2026 and Bio on September 11, 2026.

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