# HPLC Calculator vs Expert Buffer Designer

The clearest difference is in-app purchases: Expert Buffer Designer at none against HPLC Calculator's 6. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. HPLC Calculator sells 6 in-app purchases, starting at $0.59 per month. Expert Buffer Designer asks for nothing beyond the download.

## The numbers

| Metric | HPLC Calculator | Expert Buffer Designer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/expert-buffer-designer/id6739745588/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | — |
| Monetization | — | Ad-supported |
| Size | 66 MB | 26 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Youhana Mehany](https://appshunter.io/developer/1600330996) | [Bioprocess Tools LLC](https://appshunter.io/developer/1786829896) |

## What reviewers say

### HPLC Calculator

[App page](https://appshunter.io/ios/app/hplc-calculator/id1600330994)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.59 | per month |
| Remove Ads | $4.99 | per year |
| 50K Token Top-Up | $2.99 | one-time |
| 100K Token Top-Up | $4.99 | one-time |
| 250K Token Top-Up | $9.99 | one-time |
| 500K Token Top-Up | $12.99 | one-time |


### Expert Buffer Designer

[App page](https://appshunter.io/ios/app/expert-buffer-designer/id6739745588)

This application helps scientists and lab professionals design and analyze buffer solutions with a pH calculator and real-time feedback. It offers comprehensive buffer selection, variability analysis, and dynamic pH adjustment for precise results.

**Highlights:** Comprehensive buffer selection with sensitivity visualization, Instant variability analysis with heat map, Detailed compound and ion insights, Dynamic pH adjustment with real-time feedback, Personalized buffer library, Multi-platform availability (iOS, iPad, Mac)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HPLC Calculator free?

HPLC Calculator is free to download, with in-app purchases available.

### Is Expert Buffer Designer free?

Expert Buffer Designer is free to download, with no in-app purchases.

### Do HPLC Calculator or Expert Buffer Designer have ads?

Both HPLC Calculator and Expert Buffer Designer show ads.

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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.*