# M Tool vs DeltaSolar

The clearest difference is review sentiment: M Tool at 50% against DeltaSolar's 0%. M Tool also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (9.0 vs 11.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

M Tool ships an update every 3 weeks, DeltaSolar every 2 months. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | M Tool | DeltaSolar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/m-tool/id1372633345/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 29 MB | 136 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [东 李](https://appshunter.io/developer/1228988491) | [Delta Electronics, Inc.](https://appshunter.io/developer/386896582) |

## What reviewers say

### M Tool

[App page](https://appshunter.io/ios/app/m-tool/id1372633345)

This utility app enables real-time monitoring and configuration of inverter systems. It facilitates RMA requests and daily maintenance through a Bluetooth Low Energy connection.

**Highlights:** Real-time status monitoring, Parameter configuration, RMA request submission, Daily maintenance tasks, BLE communication

**Features:** macOS Compatibility

**In-app purchases:** none


### DeltaSolar

[App page](https://appshunter.io/ios/app/deltasolar/id1570742979)

Monitor your solar energy system's performance remotely or onsite. Track energy production, consumption, and export, with historical data for analysis. View grid and solar power voltage, frequency, and amps for comprehensive system insights.

**Highlights:** Remote Wi-Fi access, Direct onsite connection, Energy status and analysis, Production, consumption, export data, Historical performance data, Grid and solar voltage/frequency monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is M Tool free?

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

### Is DeltaSolar free?

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

### Do M Tool or DeltaSolar have ads?

Neither M Tool nor DeltaSolar shows ads.

### Which is updated more often, M Tool or DeltaSolar?

M Tool ships an update every 3 weeks, and DeltaSolar every 2 months. Most recently, M Tool was updated on October 14, 2026 and DeltaSolar 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.*