# ONERKW App vs Justacall

The clearest difference is in-app purchases: ONERKW App at none against Justacall's 1. Justacall's advantage is iOS requirement (14.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Justacall sells 1 in-app purchase, starting at $2.99 per month. ONERKW App asks for nothing beyond the download.

ONERKW App ships an update fortnightly, Justacall monthly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | ONERKW App | Justacall |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Size | 83 MB | 112 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [RKW SE](https://appshunter.io/developer/1553430747) | [Kevin Augustin](https://appshunter.io/developer/1761501290) |

## What reviewers say

### ONERKW App

[App page](https://appshunter.io/ios/app/onerkw-app/id1553430744)

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

**In-app purchases:** none


### Justacall

[App page](https://appshunter.io/ios/app/justacall/id6615068119)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly plan | $2.99 | per month |


## Frequently asked questions

### Is ONERKW App free?

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

### Is Justacall free?

Justacall is free to download, with in-app purchases available.

### Do ONERKW App or Justacall have ads?

Neither ONERKW App nor Justacall shows ads.

### Which is updated more often, ONERKW App or Justacall?

ONERKW App ships an update fortnightly, and Justacall monthly. Most recently, ONERKW App was updated on October 24, 2026 and Justacall on October 27, 2026.

---

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