# TK vs Pollenius

The clearest difference is review sentiment: TK at 81% against Pollenius's 25%. TK also leads on rating (4.2 vs 1.0) and ratings volume (21 vs 1). Pollenius's advantage is iOS requirement (16.6 vs 18.0). 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.

TK holds the better App Store score, 4.2 against 1.0. That said, the two scores are not equally well evidenced: TK has 21 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 81% of TK's written reviews are positive against 25% of Pollenius's.

TK ships an update every 6 weeks, Pollenius monthly. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | TK | Pollenius |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (21 ratings)](https://appshunter.io/ios/app/tk-doc/id1435903815/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/pollenius/id6502574737/reviews) |
| Number of ratings | **21** | 1 |
| Positive reviews | **81.0% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Free | Free |
| Size | 41 MB | 25 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Techniker Krankenkasse (TK)](https://appshunter.io/developer/355493231) | [Charite – Universitatsmedizin Berlin](https://appshunter.io/developer/691944420) |

## What reviewers say

### 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


### Pollenius

[App page](https://appshunter.io/ios/app/pollenius/id6502574737)

Track pollen allergies in Berlin with real-time data and a symptom diary. Contribute to climate change research and receive allergy tips. Join the #berlinbreathing community.

**Highlights:** Real-time pollen data for Berlin, Symptom diary, Medication diary, Outdoor time tracking, Allergy tips and knowledge, Data donation for research, Personal health profile

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TK free?

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

### Is Pollenius free?

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

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

TK is rated higher. TK averages 4.2 out of 5 from 21 ratings, while Pollenius averages 1.0 from 1 ratings.

### Do TK or Pollenius have ads?

Neither TK nor Pollenius shows ads.

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

TK ships an update every 6 weeks, and Pollenius monthly. Most recently, TK was updated on October 12, 2026 and Pollenius on October 1, 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.*