# TK vs EF Digital

The clearest difference is review sentiment: TK at 72% against EF Digital's 22%. TK also leads on ratings volume (1.2K vs 2). EF Digital's advantage is rating (5.0 vs 4.8) and device support (3 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

EF Digital holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: TK has 1.2K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 72% of TK's written reviews are positive against 22% of EF Digital's, so the app with the better star average is not the one people write more warmly about.

TK ships an update every 2 weeks, EF Digital fortnightly. The most recent releases landed on September 30, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | TK | EF Digital |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (1.2K ratings)](https://appshunter.io/ios/app/tk-app/id1163694230/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ef-digital/id1608219849/reviews)** |
| Number of ratings | **1.2K** | 2 |
| Positive reviews | **72.4% of reviews** | 21.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 538 MB | 109 MB |
| Requires iOS | 18.0 | **15** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Techniker Krankenkasse (TK)](https://appshunter.io/developer/355493231) | [Easy Fitness](https://appshunter.io/developer/1484494595) |

## What reviewers say

### TK

[App page](https://appshunter.io/ios/app/tk-app/id1163694230)

Manage your health insurance digitally. Upload receipts, view sick notes, and track fitness for bonus points. Securely communicate with your provider and access your health data.

**Highlights:** Digital receipt uploads, View sick notes, Secure messaging with provider, Digital bonus program, Fitness tracking via Apple Health/Fitbit, Access to health data (TK-Safe)

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent app for English speakers
- 🚀 Excellent customer service
- 👍 Easy to use and intuitive
- 👍 Comprehensive features
- 👍 Smooth and fast

**What reviewers complain about**

- 🐛 Compatibility issues with older devices
- 🐛 Synchronization problems with Apple Health
- 🐛 Login and activation issues after updates
- 🐛 Buggy submission of sick notes
- 🐛 Incomplete English translations

**Reported bugs**

- Login issues after updates
- Incompatibility with older devices
- Synchronization problems with Apple Health
- Errors when submitting sick notes
- Incomplete English translations

**Requested features**

- English language support for all features
- Integration with more fitness tracking apps
- Larger QR code display in wallet for easier scanning
- Ability to view and manage bonus program details
- Improved data synchronization and real-time updates


### EF Digital

[App page](https://appshunter.io/ios/app/ef-digital/id1608219849)

Easily book appointments and classes, track your training data, and manage your membership. Stay connected with your fitness club and trainers for personalized support and plan updates.

**Highlights:** Appointment and class booking, Personal training booking, Training data tracking, Fitness level and progress monitoring, Membership management, Contact and bank detail updates, Contract details and upgrades

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is TK free?

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

### Is EF Digital free?

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

### Which has better reviews, TK or EF Digital?

EF Digital is rated higher. TK averages 4.8 out of 5 from 1.2K ratings, while EF Digital averages 5.0 from 2 ratings.

### Do TK or EF Digital have ads?

Neither TK nor EF Digital shows ads.

### Which is updated more often, TK or EF Digital?

TK ships an update every 2 weeks, and EF Digital fortnightly. Most recently, TK was updated on September 30, 2026 and EF Digital on September 29, 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.*