# REGIS OPEC vs AllTCAS

The clearest difference is ads: REGIS OPEC at none against AllTCAS's shown. AllTCAS's advantage is update cadence (fortnightly vs every 2 months). On price, in-app purchases, device support 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.

REGIS OPEC ships an update every 2 months, AllTCAS fortnightly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | REGIS OPEC | AllTCAS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/alltcas/id6789263820/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 40 MB | 176 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [The Private Education Commission](https://appshunter.io/developer/1540552793) | [ALL LEARN CORPORATION LIMITED](https://appshunter.io/developer/1834639044) |

## What reviewers say

### REGIS OPEC

[App page](https://appshunter.io/ios/app/regis-opec/id1595552400)

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

**In-app purchases:** none


### AllTCAS

[App page](https://appshunter.io/ios/app/alltcas/id6789263820)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is REGIS OPEC free?

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

### Is AllTCAS free?

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

### Do REGIS OPEC or AllTCAS have ads?

AllTCAS shows ads; REGIS OPEC does not.

### Which is updated more often, REGIS OPEC or AllTCAS?

REGIS OPEC ships an update every 2 months, and AllTCAS fortnightly. Most recently, REGIS OPEC was updated on November 3, 2026 and AllTCAS on November 5, 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.*