# TTC App vs OMS 2026

The clearest difference is ads: TTC App at none against OMS 2026's shown. OMS 2026's advantage is update cadence (every 2 weeks vs every 11 months) and device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

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

TTC App ships an update every 11 months, OMS 2026 every 2 weeks. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | TTC App | OMS 2026 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 2 weeks** |
| Size | 13 MB | 58 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Heavy Construction Systems Specialists, Inc.](https://appshunter.io/developer/720784425) | [American Clean Power Association](https://appshunter.io/developer/1428784176) |

## What reviewers say

### TTC App

[App page](https://appshunter.io/ios/app/ttc-app/id1452360143)

**Features:** macOS Compatibility

**In-app purchases:** none


### OMS 2026

[App page](https://appshunter.io/ios/app/oms-2026/id6474557560)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TTC App free?

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

### Is OMS 2026 free?

OMS 2026 is free to download, with no in-app purchases.

### Do TTC App or OMS 2026 have ads?

OMS 2026 shows ads; TTC App does not.

### Which is updated more often, TTC App or OMS 2026?

TTC App ships an update every 11 months, and OMS 2026 every 2 weeks. Most recently, TTC App was updated on October 17, 2026 and OMS 2026 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.*