# Proffit vs Kern

The clearest difference is in-app purchases: Proffit at none against Kern's 1. Proffit also leads on iOS requirement (11.0 vs 16.0). On price there is nothing between them.

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

## The numbers

| Metric | Proffit | Kern |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (13 ratings)](https://appshunter.io/ios/app/kern-sobriety-counter/id6766077077/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 8 days |
| Monetization | — | Free with in-app purchases |
| Size | 15 MB | 3 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | — | **iPhone** |
| Age rating | 4+ | 12+ |
| Developer | [I3 ZONE DEVELOPMENT (PTY) LTD](https://appshunter.io/developer/1104982340) | [Vadym Suprun](https://appshunter.io/developer/1513814491) |

## What reviewers say

### Proffit

[App page](https://appshunter.io/ios/app/proffit/id1610744680)

**In-app purchases:** none


### Kern

[App page](https://appshunter.io/ios/app/kern-sobriety-counter/id6766077077)

This app helps you track your progress in staying sober or quitting other habits. It focuses on a private, ad-free experience with customizable widgets for your home and lock screens. Track multiple habits and milestones without external data collection.

**Highlights:** Home and lock screen widgets, Ad-free and private experience, Track multiple habits, Customizable habit labels, Milestone tracking, Editable start dates, Preserves personal best across resets

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kern Pro | $6.99 | one-time |


## Frequently asked questions

### Is Proffit free?

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

### Is Kern free?

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

---

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