# i vs CHKNESA

The clearest difference is update cadence: CHKNESA at every 3 weeks against i's every 12 months. CHKNESA also leads on iOS requirement (9.0 vs 12.1). 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 12 months, CHKNESA every 3 weeks. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | i | CHKNESA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 weeks** |
| Size | 64 MB | 127 MB |
| Requires iOS | 12.1 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Hong Kong Examinations And Assessment Authority](https://appshunter.io/developer/1515449413) | [BULL.B TECHNOLOGY LIMITED](https://appshunter.io/developer/996574459) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-invigilation-hkdse/id6444061740)

**Features:** macOS Compatibility

**In-app purchases:** none


### CHKNESA

[App page](https://appshunter.io/ios/app/chknesa/id6467186790)

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

**In-app purchases:** none


## Frequently asked questions

### Is i free?

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

### Is CHKNESA free?

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

### Do i or CHKNESA have ads?

Neither i nor CHKNESA shows ads.

### Which is updated more often, i or CHKNESA?

i ships an update every 12 months, and CHKNESA every 3 weeks. Most recently, i was updated on November 3, 2026 and CHKNESA on November 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.*