# Sea/calc distance vs Spark Commodities

The clearest difference is iOS requirement: Spark Commodities at 15.5 against Sea/calc distance's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sea/calc distance ships an update every 2 months, Spark Commodities monthly. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Sea/calc distance | Spark Commodities |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | — |
| Size | 31 MB | 46 MB |
| Requires iOS | 18.6 | **15.5** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Maritech Services Limited](https://appshunter.io/developer/1084735243) | [Spark Commodities Pte Ltd](https://appshunter.io/developer/1885717517) |

## What reviewers say

### Sea/calc distance

[App page](https://appshunter.io/ios/app/seacalc-distance/id1502845291)

Calculate voyage distances, times, and costs between waypoints on a map. View arrival/departure times, bunker prices, and vessel routes on a timeline. Exclude waypoints for alternative routing.

**Highlights:** Plot routes on a map, Calculate SECA distances, Estimate voyage time, View arrival/departure times, Access daily bunker prices, Display vessel route timeline

**Features:** Vision Pro support

**In-app purchases:** none


### Spark Commodities

[App page](https://appshunter.io/ios/app/spark-commodities/id6760683280)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sea/calc distance free?

Sea/calc distance is free to download, with no in-app purchases.

### Is Spark Commodities free?

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

### Do Sea/calc distance or Spark Commodities have ads?

Neither Sea/calc distance nor Spark Commodities shows ads.

### Which is updated more often, Sea/calc distance or Spark Commodities?

Sea/calc distance ships an update every 2 months, and Spark Commodities monthly. Most recently, Sea/calc distance was updated on October 6, 2026 and Spark Commodities on October 15, 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.*