# ATCA Events vs USA Transform

ATCA Events and USA Transform 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. Neither carries in-app purchases, so what you see is what you pay.

ATCA Events ships an update every 7 months, USA Transform every 4 months. The most recent releases landed on September 30, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | ATCA Events | USA Transform |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 months** |
| Size | 72 MB | 68 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Air Traffic Control Association, Inc.](https://appshunter.io/developer/511926096) | [USA Transform](https://appshunter.io/developer/1715886575) |

## What reviewers say

### ATCA Events

[App page](https://appshunter.io/ios/app/atca-events/id6469642578)

**Features:** macOS Compatibility

**In-app purchases:** none


### USA Transform

[App page](https://appshunter.io/ios/app/usa-transform/id6471688356)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ATCA Events free?

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

### Is USA Transform free?

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

### Do ATCA Events or USA Transform have ads?

Neither ATCA Events nor USA Transform shows ads.

### Which is updated more often, ATCA Events or USA Transform?

ATCA Events ships an update every 7 months, and USA Transform every 4 months. Most recently, ATCA Events was updated on September 30, 2026 and USA Transform on October 11, 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.*