# HOTTECH GR SMART vs Meter Usage

The clearest difference is in-app purchases: HOTTECH GR SMART at none against Meter Usage's 1. HOTTECH GR SMART also leads on iOS requirement (10.0 vs 18.0). Meter Usage's advantage is update cadence (weekly vs every 5 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Meter Usage sells 1 one-off in-app purchase. HOTTECH GR SMART asks for nothing beyond the download.

HOTTECH GR SMART ships an update every 5 weeks, Meter Usage weekly. Both last shipped on October 4, 2026.

## The numbers

| Metric | HOTTECH GR SMART | Meter Usage |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Size | 15 MB | 18 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [EuroICC d.o.o.](https://appshunter.io/developer/1362060463) | [Mathias Todisco](https://appshunter.io/developer/1849136143) |

## What reviewers say

### HOTTECH GR SMART

[App page](https://appshunter.io/ios/app/hottech-gr-smart/id6443978639)

**Features:** macOS Compatibility

**In-app purchases:** none


### Meter Usage

[App page](https://appshunter.io/ios/app/meter-usage/id6755087828)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $34.99 | one-time |


## Frequently asked questions

### Is HOTTECH GR SMART free?

HOTTECH GR SMART is free to download, with no in-app purchases.

### Is Meter Usage free?

Meter Usage is free to download, with in-app purchases available.

### Do HOTTECH GR SMART or Meter Usage have ads?

Neither HOTTECH GR SMART nor Meter Usage shows ads.

### Which is updated more often, HOTTECH GR SMART or Meter Usage?

HOTTECH GR SMART ships an update every 5 weeks, and Meter Usage weekly. Most recently, HOTTECH GR SMART was updated on October 4, 2026 and Meter Usage on October 4, 2026.

---

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