# Biological Buffer Calculator vs Capgene

The clearest difference is price: Biological Buffer Calculator at Free against Capgene's $0.99. Biological Buffer Calculator also leads on iOS requirement (8.0 vs 17.0). Capgene's advantage is update cadence (every 6 weeks vs every 77 months). On ads, in-app purchases and device support there is nothing between them.

Biological Buffer Calculator is free to download; Capgene costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Biological Buffer Calculator ships an update every 77 months, Capgene every 6 weeks. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Biological Buffer Calculator | Capgene |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[2.6 (8 ratings)](https://appshunter.io/ios/app/biological-buffer-calculator/id408368126/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 77 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 5 MB | 2 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wiley](https://appshunter.io/developer/334132751) | [晨 陈](https://appshunter.io/developer/1342101362) |

## What reviewers say

### Biological Buffer Calculator

[App page](https://appshunter.io/ios/app/biological-buffer-calculator/id408368126)

This utility app assists chemists and biochemists in preparing precise buffer solutions. Users input desired volume, pH, and concentration, along with stock solution details, to receive exact mixing instructions.

**Highlights:** Buffer system selection, Volume, pH, and concentration input, Stock solution concentration input, Precise mixing volume calculation, Pocket companion for labs

**Features:** Vision Pro support

**In-app purchases:** none


### Capgene

[App page](https://appshunter.io/ios/app/capgene/id6767604825)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Biological Buffer Calculator free?

Biological Buffer Calculator is free to download, with no in-app purchases.

### Is Capgene free?

Capgene costs $0.99, with no in-app purchases.

### Do Biological Buffer Calculator or Capgene have ads?

Neither Biological Buffer Calculator nor Capgene shows ads.

### Which is updated more often, Biological Buffer Calculator or Capgene?

Biological Buffer Calculator ships an update every 77 months, and Capgene every 6 weeks. Most recently, Biological Buffer Calculator was updated on October 3, 2026 and Capgene on October 10, 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.*