Sail Trails vs Royal Conversion Battery
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sail Trails
Read full descriptionHide full description
- Routes show when it's storm season and when it is the best time to go. - Port data shows monthly rain and Max/Min temperature averages. - View tracks and wind speed of tropical storms that occurred between 2000-2020. - Wind climatology show average wind per month collected from sattelite data. Also view pilot data collected from on-site observation from 1850-1970. - Layers allow you to see Sattelite Imagery, Bathymetry, AIS Density, Time Zones, Lightning Strikes, and Population Density maps.
Royal Conversion Battery
Read full descriptionHide full description
The App is an easy-to-use device that visibly and effectively displays how long the battery's charge or discharge will last. It also calculates how much power the battery has versus how much charge is going out, while providing the approximate amount of time the battery will remain charged. There is a wide range of battery monitors, depending on the specific application. Some of the more identifiable monitors include RV battery monitors, marine battery monitors and car battery monitoring systems.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Sail Trails | Royal Conversion Battery |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.1 | 12.0 — better |
| Further details — not scored | ||
| Size | 75 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Two* States* Away* | Sterling Power |
In-app purchases
Sail Trails
No in-app purchases
Royal Conversion Battery
No in-app purchases
Questions
Is Sail Trails free?
Is Royal Conversion Battery free?
Do Sail Trails or Royal Conversion Battery have ads?
Which is updated more often, Sail Trails or Royal Conversion Battery?
Other comparisons
