# Meterbox iMM vs Gridphase

The clearest difference is update cadence: Gridphase at every 3 months against Meterbox iMM's every 13 months. Meterbox iMM's advantage is iOS requirement (8.0 vs 12.0). 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.

Meterbox iMM ships an update every 13 months, Gridphase every 3 months. The most recent releases landed on June 10, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | Meterbox iMM | Gridphase |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/meterbox-imm/id585947223/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 25 MB | 57 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Everbest Machinery Industry Co.,Ltd](https://appshunter.io/developer/564470332) | [GRID INSTRUMENTS d.o.o.](https://appshunter.io/developer/1711794018) |

## What reviewers say

### Meterbox iMM

[App page](https://appshunter.io/ios/app/meterbox-imm/id585947223)

This professional software enhances digital multimeter usage by wirelessly displaying, logging, and sharing electrical measurements like voltage and current. It allows users to memo results and store data securely via iCloud.

**Highlights:** Wireless remote measurement, Real-time data visualization, Historical data logging, Measurement memo feature, Data sharing via social media, iCloud data storage

**Features:** macOS Compatibility

**In-app purchases:** none


### Gridphase

[App page](https://appshunter.io/ios/app/gridphase/id6469338974)

**In-app purchases:** none


## Frequently asked questions

### Is Meterbox iMM free?

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

### Is Gridphase free?

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

### Do Meterbox iMM or Gridphase have ads?

Neither Meterbox iMM nor Gridphase shows ads.

### Which is updated more often, Meterbox iMM or Gridphase?

Meterbox iMM ships an update every 13 months, and Gridphase every 3 months. Most recently, Meterbox iMM was updated on June 10, 2026 and Gridphase on May 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.*