# K7D vs Velvet Machine

The clearest difference is review sentiment: Velvet Machine at 100% against K7D's 80%. Velvet Machine also leads on rating (4.9 vs 4.6) and iOS requirement (12.0 vs 17.0). K7D's advantage is price ($3.99 vs $7.99). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

K7D costs $3.99 and Velvet Machine $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Velvet Machine holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 79 and 47 respectively. Written reviews point the same way: 80% of K7D's written reviews are positive against 100% of Velvet Machine's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | K7D | Velvet Machine |
| --- | --- | --- |
| Price | **$3.99** | $7.99 |
| Rating | [4.6 (79 ratings)](https://appshunter.io/ios/app/k7d-tape-delay/id1460245991/reviews) | **[4.9 (47 ratings)](https://appshunter.io/ios/app/velvet-machine/id1534554750/reviews)** |
| Number of ratings | **79** | 47 |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Paid | Paid |
| Size | 114 MB | 7 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Imaginando Lda](https://appshunter.io/developer/895445015) | [Yuri Turov](https://appshunter.io/developer/720810462) |

## What reviewers say

### K7D

[App page](https://appshunter.io/ios/app/k7d-tape-delay/id1460245991)

This app offers a vintage tape delay effect with analog emulation and modern controls. It recreates classic hardware echo machines for a warm, characterful sound. Use it standalone or as an AUv3 plugin in iOS DAWs.

**Highlights:** Analog modeled dual playhead delay, Modeled microphone input with saturation, Normal and Ping Pong modes, High pass and Low pass feedback filters, Powerful LFO time modulation, BPM syncable delay time, MIDI delay time modulation

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🎶 Incredible sound quality
- 🎨 Creative and musical delay
- 💡 Generous presets and easy to use
- 💰 Top-tier for the price
- 🕰️ Authentic tape delay feel

**What reviewers complain about**

- 💻 Extreme lag and crashes
- 🐛 Audio delay issues and glitches
- ⚠️ High resource usage
- ❌ No background audio standalone
- 📉 Randomiser not working (initially)

**Reported bugs**

- App crashing with many instruments
- Project crashes and data loss
- App not opening after crashes
- App deleting progress
- Randomiser not working

**Requested features**

- Fix background audio standalone
- Fix randomiser feature
- Improve CPU efficiency
- Make iPad and iPhone versions compatible
- Add reverse playback option


### Velvet Machine

[App page](https://appshunter.io/ios/app/velvet-machine/id1534554750)

This audio effect plugin generates unique sonic textures by blurring and stretching sounds. It can create reverb-like qualities, act as a delay, and offers extensive control over its volume envelope and timing. Requires a compatible host app and a relatively modern device for optimal performance.

**Highlights:** Real-time convolution with enveloped velvet noise, Sound stretching and blurring up to 10 seconds, Reverb-like textures with flexible volume envelope, Variable density random multi-tap delay, Host tempo sync for time and predelay, High cut and low cut filters, Adjustable dry/wet mix

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is K7D free?

K7D costs $3.99, with no in-app purchases.

### Is Velvet Machine free?

Velvet Machine costs $7.99, with no in-app purchases.

### Which has better reviews, K7D or Velvet Machine?

Velvet Machine is rated higher. K7D averages 4.6 out of 5 from 79 ratings, while Velvet Machine averages 4.9 from 47 ratings.

### Do K7D or Velvet Machine have ads?

Neither K7D nor Velvet Machine shows ads.

### Which is updated more often, K7D or Velvet Machine?

K7D ships an update every 3 months, and Velvet Machine every 3 months. Most recently, K7D was updated on November 11, 2026 and Velvet Machine on November 7, 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.*