# KF @Work vs RST Parents

KF @Work and RST Parents 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.

KF @Work ships an update every 9 months, RST Parents every 14 months. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | KF @Work | RST Parents |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 14 months |
| Size | 56 MB | 65 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Kinderfreunde Wedemark gemeinnutzige GmbH](https://appshunter.io/developer/1678463753) | [The Reggio School of Tokyo](https://appshunter.io/developer/1764464490) |

## What reviewers say

### KF @Work

[App page](https://appshunter.io/ios/app/kf-work/id6446629359)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### RST Parents

[App page](https://appshunter.io/ios/app/rst-parents/id6657980642)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is KF @Work free?

KF @Work is free to download, with no in-app purchases.

### Is RST Parents free?

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

### Do KF @Work or RST Parents have ads?

Neither KF @Work nor RST Parents shows ads.

### Which is updated more often, KF @Work or RST Parents?

KF @Work ships an update every 9 months, and RST Parents every 14 months. Most recently, KF @Work was updated on October 12, 2026 and RST Parents on October 2, 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.*