# FFT vs LM AUDIO

The clearest difference is review sentiment: FFT at 86% against LM AUDIO's 0%. LM AUDIO's advantage is price (Free vs $10.99) and in-app purchases (none vs 1). On update cadence, ads and device support there is nothing between them.

LM AUDIO is free to download; FFT costs $10.99 up front. FFT sells 1 one-off in-app purchase. LM AUDIO asks for nothing beyond the download.

FFT ships an update every 6 months, LM AUDIO every 3 months. The most recent releases landed on September 22, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | FFT | LM AUDIO |
| --- | --- | --- |
| Price | $10.99 | **Free** |
| Rating | **[4.0 (6 ratings)](https://appshunter.io/ios/app/fft/id298840058/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | **86.1% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 30 MB | 3 MB |
| Requires iOS | 15.0 | **7.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | +4 | 4+ |
| Developer | [Andrew Smith](https://appshunter.io/developer/291822462) | [PT. Kramat Motor](https://appshunter.io/developer/1280833868) |

## What reviewers say

### FFT

[App page](https://appshunter.io/ios/app/fft/id298840058)

Analyze audio with high-resolution frequency and amplitude graphs. Features include a signal generator, cursor readouts, and adjustable graph smoothing. Save and export your analysis results.

**Highlights:** High-resolution amplitude vs. frequency graph, Built-in low-distortion signal generator, Adjustable graph smoothing and decay time, Cursor readout for dB and frequency, Save and export analysis graphs and data, Peak tracking for highest frequency identification

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reference Curve Files | $9.99 | one-time |


### LM AUDIO

[App page](https://appshunter.io/ios/app/lm-audio/id1118657152)

This application allows users to control various audio settings for car amplifiers with integrated DSP. Adjust EQ, bass, 3D sound, time alignment, and filters. Save and load sound settings directly from your phone or the amplifier.

**Highlights:** DSP control, EQ adjustment, Bass and 3D sound settings, Time alignment, Filter control, Save sound settings to phone, Save sound settings to amplifier

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FFT free?

FFT costs $10.99, and also offers in-app purchases.

### Is LM AUDIO free?

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

### Do FFT or LM AUDIO have ads?

Neither FFT nor LM AUDIO shows ads.

### Which is updated more often, FFT or LM AUDIO?

FFT ships an update every 6 months, and LM AUDIO every 3 months. Most recently, FFT was updated on September 22, 2026 and LM AUDIO on June 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*