# CausewayOne Field vs RT Helper

The clearest difference is in-app purchases: CausewayOne Field at none against RT Helper's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. RT Helper sells 4 in-app purchases, starting at $6.99 per month. CausewayOne Field asks for nothing beyond the download.

CausewayOne Field ships an update every 3 weeks, RT Helper fortnightly. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CausewayOne Field | RT Helper |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 161 MB | 62 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ermeo](https://appshunter.io/developer/1052827304) | [Dzmitry Dubovik](https://appshunter.io/developer/1856006530) |

## What reviewers say

### CausewayOne Field

[App page](https://appshunter.io/ios/app/causewayone-field/id1437634121)

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

**In-app purchases:** none


### RT Helper

[App page](https://appshunter.io/ios/app/rt-helper/id6755742319)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RT Helper PRO – Monthly | $6.99 | per month |
| RT Helper PRO – 3 Months | $17.99 | per 3 months |
| RT Helper PRO – 6 Months | $29.99 | per 6 months |
| RT Helper PRO – Yearly | $49.99 | per year |


## Frequently asked questions

### Is CausewayOne Field free?

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

### Is RT Helper free?

RT Helper is free to download, with in-app purchases available.

### Do CausewayOne Field or RT Helper have ads?

Neither CausewayOne Field nor RT Helper shows ads.

### Which is updated more often, CausewayOne Field or RT Helper?

CausewayOne Field ships an update every 3 weeks, and RT Helper fortnightly. Most recently, CausewayOne Field was updated on November 2, 2026 and RT Helper on October 25, 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.*