# GfK Check vs TEK

The clearest difference is monetization model: TEK at free against GfK Check's paid. TEK also leads on update cadence (every 2 months vs every 45 months). GfK Check's advantage is device support and iOS requirement (11.0 vs 15.1). On in-app purchases there is nothing between them.

GfK Check ships an update every 45 months, TEK every 2 months. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | GfK Check | TEK |
| --- | --- | --- |
| Price | **$1.99** | — |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tek-training-app/id6477536809/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 45 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 4 MB | 31 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 12+ |
| Developer | [iConsultancy](https://appshunter.io/developer/409908147) | [mindtastic UG](https://appshunter.io/developer/1729587265) |

## What reviewers say

### GfK Check

[App page](https://appshunter.io/ios/app/gfk-check-in/id490162961)

This app guides users through self-connection and communication using the Nonviolent Communication model. It helps identify observations, feelings, needs, and requests to transform stress into harmony and inner peace. Users can save and share their communication insights.

**Highlights:** Nonviolent Communication model guidance, Identify observations, feelings, needs, and requests, Transform stress into harmony, Save and share communication insights, Step-by-step guided process, Pre-defined lists for observations, feelings, needs, and requests

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

**In-app purchases:** none


### TEK

[App page](https://appshunter.io/ios/app/tek-training-app/id6477536809)

This app supports individuals participating in TEK training to enhance their emotional competencies. It provides audio guides for TEK sequences and "TEK-Tiny-Tasks," allowing users to create personalized training plans with scheduled reminders.

**Highlights:** TEK training support, Audio exercise guides, TEK-Tiny-Tasks, Personalized training plans, Scheduled task reminders

**In-app purchases:** none


## Frequently asked questions

### Is GfK Check free?

GfK Check costs $1.99, with no in-app purchases.

### Is TEK free?

Pricing for TEK is not currently listed on the App Store.

### Which is updated more often, GfK Check or TEK?

GfK Check ships an update every 45 months, and TEK every 2 months. Most recently, GfK Check was updated on October 17, 2026 and TEK on October 11, 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.*