# Solar Offset for Tesla Energy vs UPECC

The clearest difference is in-app purchases: UPECC at none against Solar Offset for Tesla Energy's 3. UPECC also leads on iOS requirement (15.1 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Solar Offset for Tesla Energy sells 3 in-app purchases, starting at $4.99 per 7 days. UPECC asks for nothing beyond the download.

Solar Offset for Tesla Energy ships an update monthly, UPECC every 5 weeks. The most recent releases landed on October 27, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Solar Offset for Tesla Energy | UPECC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (17 ratings)](https://appshunter.io/ios/app/solar-offset-for-tesla-energy/id6476922330/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Subscription | — |
| Size | 14 MB | 395 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sonne und Haben GmbH](https://appshunter.io/developer/1728247032) | [THE UNION OF PILOTS, ENGINEERS & CABIN CREW](https://appshunter.io/developer/1827957204) |

## What reviewers say

### Solar Offset for Tesla Energy

[App page](https://appshunter.io/ios/app/solar-offset-for-tesla-energy/id6476922330)

Forecasts solar production, power consumption, and solar offset for up to 10 days. Helps identify optimal times to charge electric vehicles based on weather and historical data. Requires a Tesla account with Powerwall or Solar installation and a subscription.

**Highlights:** 10-day solar production forecast, Power consumption prediction, Solar offset calculation, Electric car charging optimization, Weather condition integration, Tesla Gateway data utilization

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-Day Trial | $4.99 | per 7 days |
| Monthly Plan | $9.99 | per month |
| Yearly Plan | $29.99 | per year |


### UPECC

[App page](https://appshunter.io/ios/app/upecc/id6748914702)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Solar Offset for Tesla Energy free?

Solar Offset for Tesla Energy is free to download, with in-app purchases available.

### Is UPECC free?

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

### Do Solar Offset for Tesla Energy or UPECC have ads?

Neither Solar Offset for Tesla Energy nor UPECC shows ads.

### Which is updated more often, Solar Offset for Tesla Energy or UPECC?

Solar Offset for Tesla Energy ships an update monthly, and UPECC every 5 weeks. Most recently, Solar Offset for Tesla Energy was updated on October 27, 2026 and UPECC on October 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*