# Spark vs unloading meter

The clearest difference is update cadence: unloading meter at every 2 months against Spark's every 5 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.

Spark ships an update every 5 months, unloading meter every 2 months. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Spark | unloading meter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Size | 31 MB | 42 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Reon Energy](https://appshunter.io/developer/1447637947) | [Zhejiang Koeo Petroleum Machinery Co.,Ltd](https://appshunter.io/developer/1527963988) |

## What reviewers say

### Spark

[App page](https://appshunter.io/ios/app/spark-reon-energy/id1447637948)

**Features:** macOS Compatibility

**In-app purchases:** none


### unloading meter

[App page](https://appshunter.io/ios/app/unloading-meter/id1575907612)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spark free?

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

### Is unloading meter free?

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

### Do Spark or unloading meter have ads?

Neither Spark nor unloading meter shows ads.

### Which is updated more often, Spark or unloading meter?

Spark ships an update every 5 months, and unloading meter every 2 months. Most recently, Spark was updated on October 16, 2026 and unloading meter on October 17, 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.*