# I vs JKESS

The clearest difference is update cadence: I at every 4 months against JKESS's every 8 months. I also leads on iOS requirement (8.0 vs 13.0). 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.

I ships an update every 4 months, JKESS every 8 months. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | I | JKESS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 8 months |
| Size | 11 MB | 26 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Spetrotec LTD](https://appshunter.io/developer/660726738) | [Shenzhen Nengyi Electronic Technology Co.,Ltd](https://appshunter.io/developer/1745332820) |

## What reviewers say

### I

[App page](https://appshunter.io/ios/app/i-watcher/id660726735)

**Features:** macOS Compatibility

**In-app purchases:** none


### JKESS

[App page](https://appshunter.io/ios/app/jkess/id6502400975)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is I free?

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

### Is JKESS free?

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

### Do I or JKESS have ads?

Neither I nor JKESS shows ads.

### Which is updated more often, I or JKESS?

I ships an update every 4 months, and JKESS every 8 months. Most recently, I was updated on October 6, 2026 and JKESS on October 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.*