# Sail Trails vs Royal Conversion Battery

The clearest difference is update cadence: Sail Trails at every 5 months against Royal Conversion Battery's every 12 months. 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.

Sail Trails ships an update every 5 months, Royal Conversion Battery every 12 months. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Sail Trails | Royal Conversion Battery |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 12 months |
| Size | 75 MB | 43 MB |
| Requires iOS | 13.1 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Two* States* Away*](https://appshunter.io/developer/379800400) | [Sterling Power](https://appshunter.io/developer/1639822244) |

## What reviewers say

### Sail Trails

[App page](https://appshunter.io/ios/app/sail-trails/id1581317739)

**Features:** macOS Compatibility

**In-app purchases:** none


### Royal Conversion Battery

[App page](https://appshunter.io/ios/app/royal-conversion-battery/id6740916550)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sail Trails free?

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

### Is Royal Conversion Battery free?

Royal Conversion Battery is free to download, with no in-app purchases.

### Do Sail Trails or Royal Conversion Battery have ads?

Neither Sail Trails nor Royal Conversion Battery shows ads.

### Which is updated more often, Sail Trails or Royal Conversion Battery?

Sail Trails ships an update every 5 months, and Royal Conversion Battery every 12 months. Most recently, Sail Trails was updated on September 17, 2026 and Royal Conversion Battery on September 9, 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.*