# Tower Drill vs NATO Alphabet

Tower Drill and NATO Alphabet are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Tower Drill sells 1 one-off in-app purchase and NATO Alphabet sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Tower Drill | NATO Alphabet |
| --- | --- | --- |
| 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 | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TXN LLC](https://appshunter.io/developer/1832734163) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## 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 |


### NATO Alphabet

[App page](https://appshunter.io/ios/app/nato-alphabet-phonetic-code/id6772184370)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $14.99 | per year |
| Lifetime Pro | $29.99 | one-time |


## Frequently asked questions

### Is Tower Drill free?

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

### Is NATO Alphabet free?

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

### Do Tower Drill or NATO Alphabet have ads?

Neither Tower Drill nor NATO Alphabet shows ads.

### Which is updated more often, Tower Drill or NATO Alphabet?

Tower Drill ships an update monthly, and NATO Alphabet monthly. Most recently, Tower Drill was updated on October 6, 2026 and NATO Alphabet on October 8, 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.*