# i勤怠7 vs ZeroContact

The clearest difference is update cadence: ZeroContact at every 6 days against i勤怠7's fortnightly. i勤怠7's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.6). On price, 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.

i勤怠7 ships an update fortnightly, ZeroContact every 6 days. The most recent releases landed on October 9, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | i勤怠7 | ZeroContact |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Size | 53 MB | 4 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ワンダフルフライ株式会社](https://appshunter.io/developer/1078093943) | [HIROKI NIIYAMA](https://appshunter.io/developer/1867050101) |

## What reviewers say

### i勤怠7

[App page](https://appshunter.io/ios/app/i7/id1619244283)

**In-app purchases:** none


### ZeroContact

[App page](https://appshunter.io/ios/app/zerocontact/id6757471357)

**In-app purchases:** none


## Frequently asked questions

### Is i勤怠7 free?

i勤怠7 is free to download, with no in-app purchases.

### Is ZeroContact free?

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

### Do i勤怠7 or ZeroContact have ads?

Neither i勤怠7 nor ZeroContact shows ads.

### Which is updated more often, i勤怠7 or ZeroContact?

i勤怠7 ships an update fortnightly, and ZeroContact every 6 days. Most recently, i勤怠7 was updated on October 9, 2026 and ZeroContact on October 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*