# KrisKompass vs Sonalog

The clearest difference is in-app purchases: KrisKompass at none against Sonalog's 1. KrisKompass also leads on update cadence (daily vs every 5 weeks) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Sonalog sells 1 one-off in-app purchase. KrisKompass asks for nothing beyond the download.

KrisKompass ships an update daily, Sonalog every 5 weeks. The most recent releases landed on October 16, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | KrisKompass | Sonalog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 5 weeks |
| Size | 44 MB | 5 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TIMOTHY DONALD WALSH](https://appshunter.io/developer/6786311841) | [YANGLI CHEN](https://appshunter.io/developer/1886058795) |

## What reviewers say

### KrisKompass

[App page](https://appshunter.io/ios/app/kriskompass/id6786311839)

**In-app purchases:** none


### Sonalog

[App page](https://appshunter.io/ios/app/sonalog-home-disaster-prep/id6790403062)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $3.99 | one-time |


## Frequently asked questions

### Is KrisKompass free?

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

### Is Sonalog free?

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

### Do KrisKompass or Sonalog have ads?

Neither KrisKompass nor Sonalog shows ads.

### Which is updated more often, KrisKompass or Sonalog?

KrisKompass ships an update daily, and Sonalog every 5 weeks. Most recently, KrisKompass was updated on October 16, 2026 and Sonalog on October 25, 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.*