# Amazing Slow Downer vs Rational Tonality

The clearest difference is price: Rational Tonality at $1.00 against Amazing Slow Downer's $14.99. Rational Tonality also leads on rating (5.0 vs 3.9) and update cadence (every 10 days vs every 2 months). Amazing Slow Downer's advantage is ratings volume (462 vs 7) and chart position (#22 vs unranked). On ads, in-app purchases, monetization model and device support there is nothing between them.

Amazing Slow Downer costs $14.99 and Rational Tonality $1.00 up front. Neither carries in-app purchases, so what you see is what you pay.

Rational Tonality holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Amazing Slow Downer has 462 ratings behind it against 7, so its average is the more settled of the two.

Amazing Slow Downer ships an update every 2 months, Rational Tonality every 10 days. The most recent releases landed on November 10, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Amazing Slow Downer | Rational Tonality |
| --- | --- | --- |
| Price | $14.99 | **$1.00** |
| Rating | [3.9 (462 ratings)](https://appshunter.io/ios/app/amazing-slow-downer/id308998718/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/rational-tonality/id1634264373/reviews)** |
| Number of ratings | **462** | 7 |
| Positive reviews | 68.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Paid | Paid |
| Best chart rank | **#22** | — |
| Size | 6 MB | 41 MB |
| Requires iOS | 16.0 | **13.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [Roni Music](https://appshunter.io/developer/308998721) | [Scott Dixon](https://appshunter.io/developer/1634264375) |

## What reviewers say

### Amazing Slow Downer

[App page](https://appshunter.io/ios/app/amazing-slow-downer/id308998718)

**Currently charting:** #22 Top Paid · Music, #191 Top Paid (US App Store)

Learn songs and techniques by slowing down music without altering pitch. Adjust playback speed, change tuning, and create seamless loops. Ideal for musicians, transcribers, and dancers.

**Highlights:** Adjust playback speed (25%-200%), Change pitch without distortion, Create seamless loops, Support for Apple Music streaming, Change tuning and musical key

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent for learning songs
- 👍 Great for transcribing and practicing
- 🎶 Allows slowing down and looping songs
- 💡 Useful for language learning
- 👍 Intuitive and easy to use

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- 🔌 Compatibility issues with Apple Music
- 💰 Considered expensive by some
- 🔍 Difficulty setting precise loop points
- 🔇 No volume control independent of device

**Reported bugs**

- Playback freezing or not working as expected
- Inability to access purchased songs from iTunes library
- Connectivity issues when trying to use with Spotify

**Requested features**

- Add ability to record and import voice memos
- Improve library management and organization
- Implement Audiobus support for looping in other apps
- Add more precise speed and pitch adjustment controls
- Provide option to display waveform for better visualization


### Rational Tonality

[App page](https://appshunter.io/ios/app/rational-tonality/id1634264373)

This app provides reference tones for musicians playing continuous-pitch instruments. It helps achieve resonant ensemble intonation during solo practice sessions. Updates and tutorials are planned soon.

**Highlights:** Reference tones for practice, Continuous-pitch instrument support, Ensemble intonation training, Solo practice aid, Soft launch version

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

**In-app purchases:** none


## Frequently asked questions

### Is Amazing Slow Downer free?

Amazing Slow Downer costs $14.99, with no in-app purchases.

### Is Rational Tonality free?

Rational Tonality costs $1.00, with no in-app purchases.

### Which has better reviews, Amazing Slow Downer or Rational Tonality?

Rational Tonality is rated higher. Amazing Slow Downer averages 3.9 out of 5 from 462 ratings, while Rational Tonality averages 5.0 from 7 ratings.

### Do Amazing Slow Downer or Rational Tonality have ads?

Neither Amazing Slow Downer nor Rational Tonality shows ads.

### Which is updated more often, Amazing Slow Downer or Rational Tonality?

Amazing Slow Downer ships an update every 2 months, and Rational Tonality every 10 days. Most recently, Amazing Slow Downer was updated on November 10, 2026 and Rational Tonality on November 3, 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.*