# SubcommPools vs ATCA Events

The clearest difference is update cadence: SubcommPools at every 3 months against ATCA Events's every 7 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SubcommPools ships an update every 3 months, ATCA Events every 7 months. The most recent releases landed on September 27, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | SubcommPools | ATCA Events |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/subcommpools/id1460464963/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | Free | — |
| Size | 63 MB | 72 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Subcomm LLC](https://appshunter.io/developer/1460464962) | [Air Traffic Control Association, Inc.](https://appshunter.io/developer/511926096) |

## What reviewers say

### SubcommPools

[App page](https://appshunter.io/ios/app/subcommpools/id1460464963)

Manage your pool service history with this app. View detailed reports including measurements, chemical levels, and technician messages. Receive real-time notifications for completed visits with comprehensive reports.

**Highlights:** Full pool service history, Detailed visit reports, Chemical and measurement logs, Technician messages and images, Real-time visit completion notifications

**Features:** macOS Compatibility

**In-app purchases:** none


### ATCA Events

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SubcommPools free?

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

### Is ATCA Events free?

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

### Do SubcommPools or ATCA Events have ads?

Neither SubcommPools nor ATCA Events shows ads.

### Which is updated more often, SubcommPools or ATCA Events?

SubcommPools ships an update every 3 months, and ATCA Events every 7 months. Most recently, SubcommPools was updated on September 27, 2026 and ATCA Events on September 30, 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.*