# Netzero for Powerwall vs SundialEV

The clearest difference is in-app purchases: SundialEV at none against Netzero for Powerwall's 2. SundialEV 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 11). 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. SundialEV asks for nothing beyond the download.

SundialEV 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 11, 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 SundialEV's.

Netzero for Powerwall ships an update weekly, SundialEV every 5 days. The most recent releases landed on October 21, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Netzero for Powerwall | SundialEV |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (794 ratings)](https://appshunter.io/ios/app/netzero-for-powerwall/id6453293821/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/sundialev/id6782257870/reviews)** |
| Number of ratings | **794** | 11 |
| 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 | 42 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Netzero Labs, Inc](https://appshunter.io/developer/1725678179) | [AppAhead](https://appshunter.io/developer/379575025) |

## 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


### SundialEV

[App page](https://appshunter.io/ios/app/sundialev/id6782257870)

This app intelligently directs surplus solar energy to charge your electric vehicle instead of sending it back to the grid. It helps users save money by avoiding high electricity buy-back rates and utilizing cheaper off-peak charging times. The system is designed for a set-and-forget experience, integrating with existing EV and solar hardware.

**Highlights:** Charges EV with surplus solar, Avoids grid export for low rates, Set charging floor and battery reserve, Works with all Tesla models, Coordinates with Powerwall, Utilizes off-peak charging

**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 SundialEV free?

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

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

SundialEV is rated higher. Netzero for Powerwall averages 4.8 out of 5 from 794 ratings, while SundialEV averages 5.0 from 11 ratings.

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

Neither Netzero for Powerwall nor SundialEV shows ads.

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

Netzero for Powerwall ships an update weekly, and SundialEV every 5 days. Most recently, Netzero for Powerwall was updated on October 21, 2026 and SundialEV on October 11, 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.*