# HPLC Troubleshooting Guide vs Moustra

The clearest difference is update cadence: Moustra at weekly against HPLC Troubleshooting Guide's every 2 months. HPLC Troubleshooting Guide's advantage is iOS requirement (8.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HPLC Troubleshooting Guide ships an update every 2 months, Moustra weekly. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | HPLC Troubleshooting Guide | Moustra |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | — |
| Size | 49 MB | 44 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thermo Fisher Scientific](https://appshunter.io/developer/407517076) | [Moustra](https://appshunter.io/developer/1845728241) |

## 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


### Moustra

[App page](https://appshunter.io/ios/app/moustra/id6753925485)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is HPLC Troubleshooting Guide free?

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

### Is Moustra free?

Moustra is free to download, with no in-app purchases.

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

Neither HPLC Troubleshooting Guide nor Moustra shows ads.

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

HPLC Troubleshooting Guide ships an update every 2 months, and Moustra weekly. Most recently, HPLC Troubleshooting Guide was updated on October 8, 2026 and Moustra on October 24, 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.*