# Seyfert vs PartyKeys Glow

The clearest difference is price: PartyKeys Glow at Free against Seyfert's $1.99. PartyKeys Glow also leads on update cadence (daily vs every 2 days). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

PartyKeys Glow is free to download; Seyfert costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Seyfert ships an update every 2 days, PartyKeys Glow daily. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Seyfert | PartyKeys Glow |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/seyfert/id6794878287/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 days | **Daily** |
| Monetization | Paid | — |
| Size | 3 MB | 5 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Konstantin Torsten Schutz](https://appshunter.io/developer/6778600016) | [Beijing Visual & Sense Technology Co., Ltd.](https://appshunter.io/developer/1086893265) |

## What reviewers say

### Seyfert

[App page](https://appshunter.io/ios/app/seyfert/id6794878287)

This music effect plugin creates unique echoes that orbit and revolve around the listener. It offers advanced control over pitch, depth, and tone for each echo, with a built-in reverb and EQ for a rich soundscape. It functions as a standalone app or an Audio Unit for music production software.

**Highlights:** Orbital echo generation, Spin and Doppler pitch-bend effects, 3D binaural imaging, Octave shimmer and transpose, Per-echo tone and drive, Echo-focused reverb and EQ, Standalone and AUv3 support

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

**In-app purchases:** none


### PartyKeys Glow

[App page](https://appshunter.io/ios/app/partykeys-glow/id6809326041)

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

**In-app purchases:** none


## Frequently asked questions

### Is Seyfert free?

Seyfert costs $1.99, with no in-app purchases.

### Is PartyKeys Glow free?

PartyKeys Glow is free to download, with no in-app purchases.

### Do Seyfert or PartyKeys Glow have ads?

Neither Seyfert nor PartyKeys Glow shows ads.

### Which is updated more often, Seyfert or PartyKeys Glow?

Seyfert ships an update every 2 days, and PartyKeys Glow daily. Most recently, Seyfert was updated on October 24, 2026 and PartyKeys Glow on October 8, 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.*