# HPLC Troubleshooting Guide vs HPLC Calculator

The clearest difference is in-app purchases: HPLC Troubleshooting Guide at none against HPLC Calculator's 6. HPLC Troubleshooting Guide also leads on ads (none vs shown) and iOS requirement (8.0 vs 13.0). On price, update cadence and device support there is nothing between them.

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

HPLC Troubleshooting Guide ships an update every 2 months, HPLC Calculator every 5 weeks. The most recent releases landed on October 8, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | HPLC Troubleshooting Guide | HPLC Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/hplc-troubleshooting-guide/id573520445/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 49 MB | 66 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thermo Fisher Scientific](https://appshunter.io/developer/407517076) | [Youhana Mehany](https://appshunter.io/developer/1600330996) |

## What reviewers say

### HPLC Troubleshooting Guide

[App page](https://appshunter.io/ios/app/hplc-troubleshooting-guide/id573520445)

This application provides comprehensive guidance for diagnosing and resolving issues with High-Performance Liquid Chromatography (HPLC) systems. It offers quick tips, solutions for common problems across various detection methods, and helpful tools like a method transfer calculator.

**Highlights:** Instrument setup troubleshooting tips, Solutions for HPLC, nano LC, fluorescence, and charged aerosol detection, HPLC and UHPLC method transfer calculator, Links to relevant HPLC application content, Built-in sharing for team collaboration

**Features:** Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is HPLC Troubleshooting Guide free?

HPLC Troubleshooting Guide is free to download, with no in-app purchases.

### Is HPLC Calculator free?

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

### Do HPLC Troubleshooting Guide or HPLC Calculator have ads?

HPLC Calculator shows ads; HPLC Troubleshooting Guide does not.

### Which is updated more often, HPLC Troubleshooting Guide or HPLC Calculator?

HPLC Troubleshooting Guide ships an update every 2 months, and HPLC Calculator every 5 weeks. Most recently, HPLC Troubleshooting Guide was updated on October 8, 2026 and HPLC Calculator on October 27, 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.*