# FFT Plot vs Smaart RTA

The clearest difference is price: Smaart RTA at Free against FFT Plot's $9.99. Smaart RTA also leads on update cadence (every 2 months vs every 17 months) and ratings volume (429 vs 90). FFT Plot's advantage is review sentiment (84% vs 41%) and in-app purchases (none vs 6). On rating, ads and device support there is nothing between them.

Smaart RTA is free to download; FFT Plot costs $9.99 up front. Smaart RTA sells 6 in-app purchases, starting at $1.99 per month. FFT Plot asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for FFT Plot against 4.8 for Smaart RTA. Both are backed by a comparable volume of ratings — 90 and 429 respectively. Written reviews are what separate them: 84% of FFT Plot's written reviews are positive against 41% of Smaart RTA's.

FFT Plot ships an update every 17 months, Smaart RTA every 2 months. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | FFT Plot | Smaart RTA |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.8 (90 ratings)](https://appshunter.io/ios/app/fft-plot/id569468015/reviews) | [4.8 (429 ratings)](https://appshunter.io/ios/app/smaart-rta/id6738144288/reviews) |
| Number of ratings | 90 | **429** |
| Positive reviews | **84.4% of reviews** | 40.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 7 MB | 11 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ONYX Apps](https://appshunter.io/developer/356553882) | [Rational Acoustics LLC](https://appshunter.io/developer/1755441542) |

## What reviewers say

### FFT Plot

[App page](https://appshunter.io/ios/app/fft-plot/id569468015)

This real-time audio analysis app provides precision sound measurement and visualization. It's ideal for detecting sound issues, room tuning, and speaker calibration, offering detailed frequency analysis for musicians and audio professionals.

**Highlights:** Real-time audio analysis, Frequency detection, Averaging options, Window functions, Linear and logarithmic scales, Weighting options, Draggable cursors

**In-app purchases:** none


### Smaart RTA

[App page](https://appshunter.io/ios/app/smaart-rta/id6738144288)

Analyze audio in real time with professional-grade tools. Visualize frequency content, manage feedback, and monitor sound pressure levels with precision and ease, all from your mobile device.

**Highlights:** Professional RTA graph with averaging options, Spectrograph for feedback and frequency management, SPL meter with A & C weighting, Adjustable RTA graph settings, Plot calibrated levels, Target curves

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smaart RTA - Monthly | $1.99 | per month |
| Smaart RTA Pro - Monthly | $4.99 | per month |
| Smaart RTA - Annual | $19.99 | per year |
| Smaart RTA Pro - Annual | $49.99 | per year |
| Smaart RTA - Lifetime | $59.99 | one-time |
| Smaart RTA Pro - Lifetime | $149.99 | one-time |


## Frequently asked questions

### Is FFT Plot free?

FFT Plot costs $9.99, with no in-app purchases.

### Is Smaart RTA free?

Smaart RTA is free to download, with in-app purchases available.

### Which has better reviews, FFT Plot or Smaart RTA?

FFT Plot and Smaart RTA are both rated 4.8 out of 5 on the App Store, from 90 and 429 ratings respectively.

### Do FFT Plot or Smaart RTA have ads?

Neither FFT Plot nor Smaart RTA shows ads.

### Which is updated more often, FFT Plot or Smaart RTA?

FFT Plot ships an update every 17 months, and Smaart RTA every 2 months. Most recently, FFT Plot was updated on October 19, 2026 and Smaart RTA on October 18, 2026.

---

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