# SMART USEN vs Reverse Audio

The clearest difference is review sentiment: Reverse Audio at 88% against SMART USEN's 16%. Reverse Audio also leads on rating (4.7 vs 1.0) and monetization model (free with in-app purchases vs subscription). SMART USEN's advantage is ads (none vs shown) and iOS requirement (12.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. SMART USEN sells 1 in-app purchase, starting at $4.99 per month and Reverse Audio sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Reverse Audio holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Reverse Audio has 40K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 16% of SMART USEN's written reviews are positive against 88% of Reverse Audio's.

SMART USEN ships an update every 6 weeks, Reverse Audio every 2 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | SMART USEN | Reverse Audio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/smart-usen/id730729239/reviews) | **[4.7 (40K ratings)](https://appshunter.io/ios/app/reverse-audio/id1254981556/reviews)** |
| Number of ratings | 1 | **40K** |
| Positive reviews | 16.0% of reviews | **87.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Subscription | **Free with in-app purchases** |
| Best chart rank | — | **#35** |
| Size | 15 MB | 36 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [USEN](https://appshunter.io/developer/405001406) | [Nobutaka Yuasa](https://appshunter.io/developer/1077141399) |

## What reviewers say

### SMART USEN

[App page](https://appshunter.io/ios/app/smart-usen/id730729239)

Access over 1,000 music and original talk channels, from J-POP to jazz and classical. Enjoy unlimited listening for a low monthly fee with simple, intuitive controls. Try it free before subscribing.

**Highlights:** 1,000+ music channels, Original talk programs, Unlimited listening, Simple channel selection, Free trial available, Monthly subscription

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| スタンダード | $4.99 | per month |


### Reverse Audio

[App page](https://appshunter.io/ios/app/reverse-audio/id1254981556)

**Currently charting:** #35 Top Free · Music (US App Store)

Record audio from your microphone and play it back forwards or in reverse. Adjust playback speed and pitch for creative sound manipulation. Import audio files from other apps and save your creations for later access.

**Highlights:** Record audio, Reverse playback, Adjust playback rate, Modify pitch, Import audio files, Save audio files

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Coffee | $1.99 | one-time |
| Medium Coffee | $2.99 | one-time |
| Remove Ads | $4.99 | one-time |
| Large Coffee | $4.99 | one-time |
| Barista Special | $9.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🤩 Fun and entertaining
- 🎉 Excellent audio quality
- 💯 Works as expected
- 🔍 Useful for finding hidden messages

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- 🔊 Distorted audio in reverse playback
- 🔒 Cannot import external audio files

**Reported bugs**

- Recording not playing back in reverse
- Cannot save or share reversed recordings

**Requested features**

- Add ability to import audio files
- Implement more audio manipulation options
- Provide video reverse playback


## Frequently asked questions

### Is SMART USEN free?

SMART USEN is free to download, with in-app purchases available.

### Is Reverse Audio free?

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

### Which has better reviews, SMART USEN or Reverse Audio?

Reverse Audio is rated higher. SMART USEN averages 1.0 out of 5 from 1 ratings, while Reverse Audio averages 4.7 from 40K ratings.

### Do SMART USEN or Reverse Audio have ads?

Reverse Audio shows ads; SMART USEN does not.

### Which is updated more often, SMART USEN or Reverse Audio?

SMART USEN ships an update every 6 weeks, and Reverse Audio every 2 months. Most recently, SMART USEN was updated on November 1, 2026 and Reverse Audio on November 1, 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.*