# Peil.nl vs KNMT

The clearest difference is in-app purchases: Peil.nl at none against KNMT's 10. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. KNMT sells 10 one-off in-app purchases. Peil.nl asks for nothing beyond the download.

Peil.nl ships an update every 13 months, KNMT every 8 months. The most recent releases landed on October 6, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Peil.nl | KNMT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 8 months** |
| Size | 28 MB | 22 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [D.N. van Oijen](https://appshunter.io/developer/964431543) | [Koninklijke Nederlandse Maatschappij tot Bevordering der Tandheelkunde](https://appshunter.io/developer/672683557) |

## What reviewers say

### Peil.nl

[App page](https://appshunter.io/ios/app/peilnl/id418896093)

**In-app purchases:** none


### KNMT

[App page](https://appshunter.io/ios/app/knmt-app/id672683554)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NT 5 - 2014 | $14.99 | one-time |
| NT 6 - 2014 | $14.99 | one-time |
| NT 7 - 2014 | $14.99 | one-time |
| NT 8 - 2014 | $14.99 | one-time |
| NT 9 - 2014 | $14.99 | one-time |
| NT 10 - 2014 | $14.99 | one-time |
| NT 11 - 2014 | $14.99 | one-time |
| NT 12 - 2014 | $14.99 | one-time |
| NT 13 - 2014 | $14.99 | one-time |
| NT 14 - 2014 | $14.99 | one-time |


## Frequently asked questions

### Is Peil.nl free?

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

### Is KNMT free?

KNMT is free to download, with in-app purchases available.

### Do Peil.nl or KNMT have ads?

Neither Peil.nl nor KNMT shows ads.

### Which is updated more often, Peil.nl or KNMT?

Peil.nl ships an update every 13 months, and KNMT every 8 months. Most recently, Peil.nl was updated on October 6, 2026 and KNMT 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.*