# trd.by vs Tannlegetidende

The clearest difference is ads: Tannlegetidende at none against trd.by's shown. Tannlegetidende also leads on iOS requirement (9.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | trd.by | Tannlegetidende |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | Every 3 months |
| Size | 7 MB | 18 MB |
| Requires iOS | 17.0 | **9.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Polaris Media ASA](https://appshunter.io/developer/415621266) | [Gevir Kommunikasjon As](https://appshunter.io/developer/444073312) |

## What reviewers say

### trd.by

[App page](https://appshunter.io/ios/app/trdby/id993587874)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Tannlegetidende

[App page](https://appshunter.io/ios/app/tannlegetidende/id1007323453)

**In-app purchases:** none


## Frequently asked questions

### Is trd.by free?

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

### Is Tannlegetidende free?

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

### Do trd.by or Tannlegetidende have ads?

trd.by shows ads; Tannlegetidende does not.

### Which is updated more often, trd.by or Tannlegetidende?

trd.by ships an update every 3 months, and Tannlegetidende every 3 months. Most recently, trd.by was updated on October 29, 2026 and Tannlegetidende on October 26, 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.*