# Rivvy vs SundialEV

The clearest difference is review sentiment: SundialEV at 100% against Rivvy's 0%. SundialEV also leads on rating (5.0 vs 1.0) and ads (none vs shown). Rivvy's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.4). On price and in-app purchases there is nothing between them.

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

SundialEV holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: SundialEV has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Rivvy's written reviews are positive against 100% of SundialEV's.

Rivvy ships an update every 2 weeks, SundialEV every 5 days. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Rivvy | SundialEV |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/rivvy/id6443904127/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/sundialev/id6782257870/reviews)** |
| Number of ratings | 2 | **11** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Ad-supported | **Free** |
| Size | 119 MB | 42 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Novvia LLC](https://appshunter.io/developer/1402076437) | [AppAhead](https://appshunter.io/developer/379575025) |

## What reviewers say

### Rivvy

[App page](https://appshunter.io/ios/app/rivvy/id6443904127)

Connect with other owners and enthusiasts of a specific electric vehicle brand. Track important vehicle details and discover more about your car. Engage in a community focused on shared interests.

**Highlights:** Vehicle detail tracking, Learn about your vehicle, Connect with other owners, Community interaction, Enthusiast engagement

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Rivvy free?

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

### Is SundialEV free?

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

### Which has better reviews, Rivvy or SundialEV?

SundialEV is rated higher. Rivvy averages 1.0 out of 5 from 2 ratings, while SundialEV averages 5.0 from 11 ratings.

### Do Rivvy or SundialEV have ads?

Rivvy shows ads; SundialEV does not.

### Which is updated more often, Rivvy or SundialEV?

Rivvy ships an update every 2 weeks, and SundialEV every 5 days. Most recently, Rivvy was updated on October 10, 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.*