# Audio SA vs PurrTalk | LINE Chat Analyzer

The clearest difference is in-app purchases: PurrTalk | LINE Chat Analyzer at none against Audio SA's 1. PurrTalk | LINE Chat Analyzer also leads on ads (none vs shown). Audio SA's advantage is iOS requirement (15.6 vs 17.0). On price and device support there is nothing between them.

Both are free to download. Audio SA sells 1 one-off in-app purchase. PurrTalk | LINE Chat Analyzer asks for nothing beyond the download.

## The numbers

| Metric | Audio SA | PurrTalk | LINE Chat Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/purrtalk-line-chat-analyzer/id6763679341/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 28 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) | [锦菊 曾](https://appshunter.io/developer/1844998310) |

## What reviewers say

### Audio SA

[App page](https://appshunter.io/ios/app/audio-sa/id6444715596)

This app analyzes audio waveforms to create visual voiceprints as TFFT images. It offers extensive customization for FFT analysis, including adjustable ranges, sizes, scales, and window functions. A simple waveform generator is also included for learning purposes.

**Highlights:** TFFT voiceprint image generation, High-resolution image export, Customizable FFT analysis settings, Adjustable audio waveform analysis range, Simple waveform generator (sine, square, noise), Multiple FFT sizes and window functions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads. | $3.99 | one-time |


### PurrTalk | LINE Chat Analyzer

[App page](https://appshunter.io/ios/app/purrtalk-line-chat-analyzer/id6763679341)

Analyze your LINE chat history to uncover relationship dynamics. This app provides compatibility scores, relationship archetypes, and insights into communication patterns like reply pace and affection words. All analysis is performed locally on your device for maximum privacy.

**Highlights:** Compatibility score, Relationship archetypes, Communication lenses, Affection word analysis, Reply pace breakdown, Time-series communication graph, AI-powered summary

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Audio SA free?

Audio SA is free to download, with in-app purchases available.

### Is PurrTalk | LINE Chat Analyzer free?

PurrTalk | LINE Chat Analyzer is free to download, with no in-app purchases.

### Do Audio SA or PurrTalk | LINE Chat Analyzer have ads?

Audio SA shows ads; PurrTalk | LINE Chat Analyzer does not.

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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.*