# Kavim iBus vs Spark System

The clearest difference is update cadence: Spark System at fortnightly against Kavim iBus's every 5 weeks. Spark System also leads on iOS requirement (15.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

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

Kavim iBus ships an update every 5 weeks, Spark System fortnightly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Kavim iBus | Spark System |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Size | 11 MB | 151 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [ISR](https://appshunter.io/developer/1174205767) | [mati skiba](https://appshunter.io/developer/1719522362) |

## What reviewers say

### Kavim iBus

[App page](https://appshunter.io/ios/app/kavim-ibus/id1391073863)

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

**In-app purchases:** none


### Spark System

[App page](https://appshunter.io/ios/app/spark-system/id6473700835)

**In-app purchases:** none


## Frequently asked questions

### Is Kavim iBus free?

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

### Is Spark System free?

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

### Do Kavim iBus or Spark System have ads?

Neither Kavim iBus nor Spark System shows ads.

### Which is updated more often, Kavim iBus or Spark System?

Kavim iBus ships an update every 5 weeks, and Spark System fortnightly. Most recently, Kavim iBus was updated on October 24, 2026 and Spark System on October 27, 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.*