# Netzero for Powerwall vs GMVoice

The clearest difference is in-app purchases: GMVoice at none against Netzero for Powerwall's 2. GMVoice also leads on rating (5.0 vs 4.8) and review sentiment (100% vs 90%). Netzero for Powerwall's advantage is ratings volume (794 vs 6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Netzero for Powerwall sells 2 in-app purchases, starting at $6.99 per month. GMVoice asks for nothing beyond the download.

GMVoice holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Netzero for Powerwall has 794 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 90% of Netzero for Powerwall's written reviews are positive against 100% of GMVoice's.

Netzero for Powerwall ships an update weekly, GMVoice every 5 days. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Netzero for Powerwall | GMVoice |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (794 ratings)](https://appshunter.io/ios/app/netzero-for-powerwall/id6453293821/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/gmvoice/id6759870646/reviews)** |
| Number of ratings | **794** | 6 |
| Positive reviews | 90.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Freemium | **Free** |
| Size | 60 MB | 117 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Netzero Labs, Inc](https://appshunter.io/developer/1725678179) | [Luzana.App](https://appshunter.io/developer/1878125028) |

## What reviewers say

### Netzero for Powerwall

[App page](https://appshunter.io/ios/app/netzero-for-powerwall/id6453293821)

Automate your home energy system to maximize savings and monitor your Powerwall's health. Integrate with utility providers for dynamic pricing and receive alerts for solar or battery issues. Gain insights into energy production and use your device as a home energy dashboard.

**Highlights:** Powerwall automation and scheduling, Utility tariff integration, Solar production monitoring, Powerwall health alerts, Home energy dashboard, Advanced diagnostics

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Netzero Pro - Monthly | $6.99 | per month |
| Netzero Pro - Annual | $69.99 | per year |

**What reviewers like**

- 🚀 Indispensable for home energy nerds
- 🚀 Amazing Diagnostic Tool
- 🚀 Awesome app to extend Tesla capabilities
- 🚀 Outstanding
- 🚀 Great App + Great Support

**What reviewers complain about**

- 🐛 Something changed?
- 🔧 Good but needs more tariff options
- 🐛 May not be compatible with PW3
- 🐛 Difficult

**Reported bugs**

- May not be compatible with PW3
- Diagnostic screen stays black

**Requested features**

- stop battery charging?
- AND function on the conditionality


### GMVoice

[App page](https://appshunter.io/ios/app/gmvoice/id6759870646)

Control your Gym Monster workout device using voice commands in multiple languages. Start/stop exercises, adjust weights, and stay focused hands-free. Offers demo mode and Siri shortcuts for seamless integration.

**Highlights:** Hands-free workout control, Multi-language voice commands, Weight adjustment via voice, Demo mode for testing, Siri Shortcuts integration, On-device speech recognition

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

**In-app purchases:** none


## Frequently asked questions

### Is Netzero for Powerwall free?

Netzero for Powerwall is free to download, with in-app purchases available.

### Is GMVoice free?

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

### Which has better reviews, Netzero for Powerwall or GMVoice?

GMVoice is rated higher. Netzero for Powerwall averages 4.8 out of 5 from 794 ratings, while GMVoice averages 5.0 from 6 ratings.

### Do Netzero for Powerwall or GMVoice have ads?

Neither Netzero for Powerwall nor GMVoice shows ads.

### Which is updated more often, Netzero for Powerwall or GMVoice?

Netzero for Powerwall ships an update weekly, and GMVoice every 5 days. Most recently, Netzero for Powerwall was updated on October 21, 2026 and GMVoice on October 16, 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.*