# K21 App vs SOULSTRACK

The clearest difference is ads: SOULSTRACK at none against K21 App's shown. SOULSTRACK also leads on monetization model (free vs ad-supported) and iOS requirement (12.0 vs 15.0). K21 App's advantage is update cadence (every 6 months vs every 11 months). On price, review sentiment, 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.

K21 App ships an update every 6 months, SOULSTRACK every 11 months. The most recent releases landed on August 22, 2026 and July 6, 2026 respectively.

## The numbers

| Metric | K21 App | SOULSTRACK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (45 ratings)](https://appshunter.io/ios/app/soulstrack/id6504493479/reviews)** |
| Number of ratings | — | **45** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 months** | Every 11 months |
| Monetization | Ad-supported | **Free** |
| Size | 56 MB | 15 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [K21 Kirche fuer das 21. Jahrhundert](https://appshunter.io/developer/1539651110) | [Whitley Cobb Pittman](https://appshunter.io/developer/1752516354) |

## What reviewers say

### K21 App

[App page](https://appshunter.io/ios/app/k21-app/id1539651108)

Stay updated with the latest content, sermons, and news. Receive notifications for events and announcements so you don't miss out. Easily make donations and sign up for small groups.

**Highlights:** Latest content and sermons, Event and news notifications, Easy donations, Small group sign-ups, Access to church news

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

**In-app purchases:** none


### SOULSTRACK

[App page](https://appshunter.io/ios/app/soulstrack/id6504493479)

This app helps local churches streamline soulwinning efforts and disciple new believers. It provides digital gospel scripts, contact management for follow-up, and tools to plan outreaches and monitor church growth with detailed statistics.

**Highlights:** Digital gospel script, Contact management for follow-up, Outreach planning and region assignment, Geographical mapping of saved souls, Personal and collective soul-winning statistics, Real-time growth monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is K21 App free?

K21 App is free to download, with no in-app purchases.

### Is SOULSTRACK free?

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

### Do K21 App or SOULSTRACK have ads?

K21 App shows ads; SOULSTRACK does not.

### Which is updated more often, K21 App or SOULSTRACK?

K21 App ships an update every 6 months, and SOULSTRACK every 11 months. Most recently, K21 App was updated on August 22, 2026 and SOULSTRACK on July 6, 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.*