# Tower Drill vs N

The clearest difference is in-app purchases: N at none against Tower Drill's 1. N also leads on update cadence (fortnightly vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Tower Drill sells 1 one-off in-app purchase. N asks for nothing beyond the download.

Tower Drill ships an update monthly, N fortnightly. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Tower Drill | N |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tower-drill/id6761797521/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 1 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TXN LLC](https://appshunter.io/developer/1832734163) | [Zeul Mordasiewicz](https://appshunter.io/developer/1878875793) |

## What reviewers say

### Tower Drill

[App page](https://appshunter.io/ios/app/tower-drill/id6761797521)

Practice aviation radio communications with realistic ATC instructions. This app helps student pilots overcome mic fright through repeatable drills and structured lessons, offering different practice modes and an optional on-device AI for enhanced training.

**Highlights:** Realistic ATC instruction practice, Push-to-talk and readback scoring, Multiple practice modes (Training, Coached, Solo), 15 structured lessons and 78 drills, On-device AI for varied phrasing, Aircraft placard for reference, Privacy-focused design

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tower Drill Pro | $8.99 | one-time |


### N

[App page](https://appshunter.io/ios/app/n-back-math/id6769662439)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tower Drill free?

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

### Is N free?

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

### Do Tower Drill or N have ads?

Neither Tower Drill nor N shows ads.

### Which is updated more often, Tower Drill or N?

Tower Drill ships an update monthly, and N fortnightly. Most recently, Tower Drill was updated on October 6, 2026 and N on October 4, 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.*