# ZERO8 vs K1

ZERO8 and K1 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

ZERO8 ships an update every 24 months, K1 every 13 months. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | ZERO8 | K1 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 13 months** |
| Size | 64 MB | 64 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [XIAOXIAO ZHANG](https://appshunter.io/developer/1554288618) | [XIAOZHONG MA](https://appshunter.io/developer/1667250115) |

## What reviewers say

### ZERO8

[App page](https://appshunter.io/ios/app/zero8/id1554288616)

**Features:** macOS Compatibility

**In-app purchases:** none


### K1

[App page](https://appshunter.io/ios/app/k1/id1667250113)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ZERO8 free?

ZERO8 is free to download, with no in-app purchases.

### Is K1 free?

K1 is free to download, with no in-app purchases.

### Do ZERO8 or K1 have ads?

Neither ZERO8 nor K1 shows ads.

### Which is updated more often, ZERO8 or K1?

ZERO8 ships an update every 24 months, and K1 every 13 months. Most recently, ZERO8 was updated on September 10, 2026 and K1 on September 17, 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.*