# Blutspende vs TK

The clearest difference is rating: Blutspende at 4.8 against TK's 4.2. Blutspende also leads on review sentiment (91% vs 81%) and device support (3 vs 1). TK's advantage is update cadence (every 6 weeks vs every 8 months). On price, ratings volume, 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.

Blutspende holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 49 and 21 respectively. Written reviews point the same way: 91% of Blutspende's written reviews are positive against 81% of TK's.

Blutspende ships an update every 8 months, TK every 6 weeks. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Blutspende | TK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (49 ratings)](https://appshunter.io/ios/app/blutspende/id391098483/reviews)** | [4.2 (21 ratings)](https://appshunter.io/ios/app/tk-doc/id1435903815/reviews) |
| Number of ratings | **49** | 21 |
| Positive reviews | **90.9% of reviews** | 81.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 1 MB | 41 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [deltacity.net](https://appshunter.io/developer/367828162) | [Techniker Krankenkasse (TK)](https://appshunter.io/developer/355493231) |

## What reviewers say

### Blutspende

[App page](https://appshunter.io/ios/app/blutspende/id391098483)

Find and book blood donation appointments across Germany. Track your donation history and receive reminders for future donations. Connect with other donors in a dedicated forum.

**Highlights:** Find donation appointments nationwide, Track donation history, Receive donation reminders, Manage favorite donation locations, Connect with other donors in a forum, Direct access to digital donor service

**Features:** Apple Wallet

**In-app purchases:** none


### TK

[App page](https://appshunter.io/ios/app/tk-doc/id1435903815)

Access medical consultations, advice, and appointment scheduling all in one place. Get quick information on symptoms, lab results, and medical abbreviations. Find doctors and receive expert dental advice.

**Highlights:** Video consultations with doctors, 24/7 medical advice via chat or phone, Appointment scheduling, Symptom checker, Lab value checker, ICD code search, Dental prosthesis advice

**In-app purchases:** none


## Frequently asked questions

### Is Blutspende free?

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

### Is TK free?

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

### Which has better reviews, Blutspende or TK?

Blutspende is rated higher. Blutspende averages 4.8 out of 5 from 49 ratings, while TK averages 4.2 from 21 ratings.

### Do Blutspende or TK have ads?

Neither Blutspende nor TK shows ads.

### Which is updated more often, Blutspende or TK?

Blutspende ships an update every 8 months, and TK every 6 weeks. Most recently, Blutspende was updated on October 11, 2026 and TK on October 12, 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.*