# iKF vs SIBYL

The clearest difference is iOS requirement: SIBYL at 13.0 against iKF's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

iKF ships an update every 3 weeks, SIBYL monthly. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | iKF | SIBYL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (84 ratings)](https://appshunter.io/ios/app/ikf/id1629620859/reviews)** | — |
| Number of ratings | **84** | — |
| Positive reviews | 75.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | — |
| Size | 243 MB | 47 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dongguan Awu Technology Co., Ltd.](https://appshunter.io/developer/1616506708) | [炜伦 刘](https://appshunter.io/developer/1715954217) |

## What reviewers say

### iKF

[App page](https://appshunter.io/ios/app/ikf/id1629620859)

Tailor your audio experience with personalized settings and unique functionalities. This app allows for custom sound profiles, noise cancellation adjustments, and control over device interactions. It also provides essential management features like battery checks and firmware updates.

**Highlights:** Burn-in Function, Noise Cancellation modes, Customise gesture controls, Customise equaliser settings, Set a private alarm, Check battery levels, Update firmware

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use interface
- 👍 Good sound quality
- 👍 Effective noise reduction
- 👍 Useful for various activities (music, gaming, fitness)
- 👍 Good app complements headphones

**What reviewers complain about**

- 🐛 App has bugs
- 🐛 Modes for music are glitched
- 🐛 Sound effect menu is blank
- 🐛 Cannot create an account
- 🐛 Repeated disconnections

**Reported bugs**

- 502 error when creating account
- App has many bugs
- Modes for different music are glitched
- Sound effect menu is blank on iPhone 13 Pro Max
- Headphones are noisy and disconnect repeatedly

**Requested features**

- Add English language support
- Translate the whole system to English
- Allow users to change language to English


### SIBYL

[App page](https://appshunter.io/ios/app/sibyl/id1645493417)

**In-app purchases:** none


## Frequently asked questions

### Is iKF free?

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

### Is SIBYL free?

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

### Do iKF or SIBYL have ads?

Neither iKF nor SIBYL shows ads.

### Which is updated more often, iKF or SIBYL?

iKF ships an update every 3 weeks, and SIBYL monthly. Most recently, iKF was updated on October 9, 2026 and SIBYL on October 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.*