# Netzero for Powerwall vs Casaspire

The clearest difference is in-app purchases: Casaspire at none against Netzero for Powerwall's 2. Casaspire also leads on iOS requirement (12.0 vs 16.4). Netzero for Powerwall's advantage is update cadence (weekly vs every 3 weeks). On price, 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. Casaspire asks for nothing beyond the download.

Netzero for Powerwall ships an update weekly, Casaspire every 3 weeks. The most recent releases landed on September 26, 2026 and July 6, 2026 respectively.

## The numbers

| Metric | Netzero for Powerwall | Casaspire |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (763 ratings)](https://appshunter.io/ios/app/netzero-for-powerwall/id6453293821/reviews)** | — |
| Number of ratings | **763** | — |
| Positive reviews | 90.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Freemium | — |
| Size | 60 MB | 160 MB |
| Requires iOS | 16.4 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Netzero Labs, Inc](https://appshunter.io/developer/1725678179) | [Napertek Inc.](https://appshunter.io/developer/1770766365) |

## 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


### Casaspire

[App page](https://appshunter.io/ios/app/casaspire/id6720752971)

**Features:** macOS Compatibility

**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 Casaspire free?

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

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

Neither Netzero for Powerwall nor Casaspire shows ads.

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

Netzero for Powerwall ships an update weekly, and Casaspire every 3 weeks. Most recently, Netzero for Powerwall was updated on September 26, 2026 and Casaspire on July 6, 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.*