# easyTRX2S vs AnchorChainCalculator

The clearest difference is price: easyTRX2S at Free against AnchorChainCalculator's $12.99. easyTRX2S also leads on iOS requirement (8.0 vs 10.0). AnchorChainCalculator's advantage is update cadence (every 3 weeks vs every 10 months). On ads, in-app purchases and device support there is nothing between them.

easyTRX2S is free to download; AnchorChainCalculator costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

easyTRX2S ships an update every 10 months, AnchorChainCalculator every 3 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | easyTRX2S | AnchorChainCalculator |
| --- | --- | --- |
| Price | **Free** | $12.99 |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/anchorchaincalculator/id1533741243/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | — | Paid |
| Size | 43 MB | 12 MB |
| Requires iOS | **8.0** | 10.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Weatherdock AG](https://appshunter.io/developer/554111402) | [Mathias Wagner](https://appshunter.io/developer/1533741245) |

## What reviewers say

### easyTRX2S

[App page](https://appshunter.io/ios/app/easytrx2s/id963141020)

**Features:** macOS Compatibility

**In-app purchases:** none


### AnchorChainCalculator

[App page](https://appshunter.io/ios/app/anchorchaincalculator/id1533741243)

Calculate the optimal amount of anchor chain or rope for secure anchoring based on vessel characteristics and sea conditions. Provides detailed load calculations and accounts for dynamic effects like swell and gusts. Supports both metric and imperial units, with options for chain-only or mixed rope/chain setups.

**Highlights:** Physics-based anchoring calculations, Customizable vessel and sea conditions, Chain-only or mixed rope/chain support, Load and swell absorption analysis, Metric and imperial unit support, Multiple vessel configuration storage, Basic and Expert modes

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

**In-app purchases:** none


## Frequently asked questions

### Is easyTRX2S free?

easyTRX2S is free to download, with no in-app purchases.

### Is AnchorChainCalculator free?

AnchorChainCalculator costs $12.99, with no in-app purchases.

### Do easyTRX2S or AnchorChainCalculator have ads?

Neither easyTRX2S nor AnchorChainCalculator shows ads.

### Which is updated more often, easyTRX2S or AnchorChainCalculator?

easyTRX2S ships an update every 10 months, and AnchorChainCalculator every 3 weeks. Most recently, easyTRX2S was updated on October 26, 2026 and AnchorChainCalculator on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*