# NDFF invoer vs Adlar

The clearest difference is update cadence: Adlar at every 2 weeks against NDFF invoer's every 9 months. NDFF invoer's advantage is device support (3 vs 1) and iOS requirement (10.0 vs 16.4). On price, 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.

NDFF invoer ships an update every 9 months, Adlar every 2 weeks. The most recent releases landed on October 13, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | NDFF invoer | Adlar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 weeks** |
| Size | 18 MB | 61 MB |
| Requires iOS | **10.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [BIJ12](https://appshunter.io/developer/1584095478) | [Adlar Castra](https://appshunter.io/developer/1844618360) |

## What reviewers say

### NDFF invoer

[App page](https://appshunter.io/ios/app/ndff-invoer/id1068127600)

**Features:** macOS Compatibility

**In-app purchases:** none


### Adlar

[App page](https://appshunter.io/ios/app/adlar/id6753714742)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NDFF invoer free?

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

### Is Adlar free?

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

### Do NDFF invoer or Adlar have ads?

Neither NDFF invoer nor Adlar shows ads.

### Which is updated more often, NDFF invoer or Adlar?

NDFF invoer ships an update every 9 months, and Adlar every 2 weeks. Most recently, NDFF invoer was updated on October 13, 2026 and Adlar on October 28, 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.*