# ACI Convention vs ControlTowerX

The clearest difference is update cadence: ControlTowerX at monthly against ACI Convention's every 5 months. ControlTowerX also leads on iOS requirement (12.0 vs 16.6). 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.

ACI Convention ships an update every 5 months, ControlTowerX monthly. The most recent releases landed on October 24, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | ACI Convention | ControlTowerX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (5 ratings)](https://appshunter.io/ios/app/aci-convention/id6446288429/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free | — |
| Size | 54 MB | 66 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [American Concrete Institute](https://appshunter.io/developer/506106957) | [Mark Dziuk](https://appshunter.io/developer/1747802515) |

## What reviewers say

### ACI Convention

[App page](https://appshunter.io/ios/app/aci-convention/id6446288429)

This app connects professionals in the concrete industry for networking and education. It facilitates learning about the latest research, case studies, and best practices, while also providing a platform for input on industry codes and specifications. Attendees can earn Professional Development Hours and meet global industry leaders.

**Highlights:** Networking events, Educational sessions, Professional Development Hours, Industry code input, Committee meetings, Latest research access

**Features:** Apple Wallet

**In-app purchases:** none


### ControlTowerX

[App page](https://appshunter.io/ios/app/controltowerx/id6503016725)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ACI Convention free?

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

### Is ControlTowerX free?

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

### Do ACI Convention or ControlTowerX have ads?

Neither ACI Convention nor ControlTowerX shows ads.

### Which is updated more often, ACI Convention or ControlTowerX?

ACI Convention ships an update every 5 months, and ControlTowerX monthly. Most recently, ACI Convention was updated on October 24, 2026 and ControlTowerX on October 3, 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.*