# SKC vs HemiSync

The clearest difference is price: HemiSync at Free against SKC's $1.99. HemiSync also leads on ratings volume (9 vs 2). SKC's advantage is rating (5.0 vs 4.2) and in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

HemiSync is free to download; SKC costs $1.99 up front. HemiSync sells 1 in-app purchase, starting at $0.99 per month. SKC asks for nothing beyond the download.

SKC holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 2 and 9 respectively.

SKC ships an update every 9 days, HemiSync every 5 weeks. The most recent releases landed on September 18, 2026 and August 29, 2026 respectively.

## The numbers

| Metric | SKC | HemiSync |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/skc-yugioh-database/id6737700875/reviews)** | [4.2 (9 ratings)](https://appshunter.io/ios/app/hemisync/id6751762821/reviews) |
| Number of ratings | 2 | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 5 weeks |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 21 MB | 61 MB |
| Requires iOS | 18.6 | **18.4** |
| Devices | iPhone | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [javier Gomez](https://appshunter.io/developer/1777468065) | [EngineZero](https://appshunter.io/developer/1573141529) |

## What reviewers say

### SKC

[App page](https://appshunter.io/ios/app/skc-yugioh-database/id6737700875)

Access a comprehensive database for Yu-Gi-Oh! cards and products. Search by name or ID, view detailed card effects, ban list status, and product contents. Discover trending cards and upcoming TCG information with a fast, clean interface.

**Highlights:** Search cards by name or ID, Detailed card information (effects, ban list, printing dates), Product details and related cards, Upcoming TCG product information, Current and past format ban lists, Trending cards and products, Fast and clean UI

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

**In-app purchases:** none


### HemiSync

[App page](https://appshunter.io/ios/app/hemisync/id6751762821)

This app generates binaural beats and isochronic tones to aid in meditation and relaxation. Explore various sound frequencies and pre-set combinations for personal wellness routines, with customizable timers and controls.

**Highlights:** Binaural beat and isochronic tone generation, Customizable frequency ranges (Delta, Theta, Alpha, Beta, Gamma), Pre-configured audio presets, Session timer functionality, Solfeggio frequency options

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | per month |


## Frequently asked questions

### Is SKC free?

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

### Is HemiSync free?

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

### Which has better reviews, SKC or HemiSync?

SKC is rated higher. SKC averages 5.0 out of 5 from 2 ratings, while HemiSync averages 4.2 from 9 ratings.

### Do SKC or HemiSync have ads?

Neither SKC nor HemiSync shows ads.

### Which is updated more often, SKC or HemiSync?

SKC ships an update every 9 days, and HemiSync every 5 weeks. Most recently, SKC was updated on September 18, 2026 and HemiSync on August 29, 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.*