# DeltaSolar vs ESTAR Enduser

The clearest difference is iOS requirement: DeltaSolar at 11.0 against ESTAR Enduser's 14.0. On price, update cadence, ads 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.

DeltaSolar ships an update every 2 months, ESTAR Enduser every 6 weeks. The most recent releases landed on July 19, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | DeltaSolar | ESTAR Enduser |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 136 MB | 51 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Delta Electronics, Inc.](https://appshunter.io/developer/386896582) | [JUAN WANG](https://appshunter.io/developer/1650350517) |

## What reviewers say

### DeltaSolar

[App page](https://appshunter.io/ios/app/deltasolar/id1570742979)

Monitor your solar energy system's performance remotely or onsite. Track energy production, consumption, and export, with historical data for analysis. View grid and solar power voltage, frequency, and amps for comprehensive system insights.

**Highlights:** Remote Wi-Fi access, Direct onsite connection, Energy status and analysis, Production, consumption, export data, Historical performance data, Grid and solar voltage/frequency monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### ESTAR Enduser

[App page](https://appshunter.io/ios/app/estar-enduser/id6443897189)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DeltaSolar free?

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

### Is ESTAR Enduser free?

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

### Do DeltaSolar or ESTAR Enduser have ads?

Neither DeltaSolar nor ESTAR Enduser shows ads.

### Which is updated more often, DeltaSolar or ESTAR Enduser?

DeltaSolar ships an update every 2 months, and ESTAR Enduser every 6 weeks. Most recently, DeltaSolar was updated on July 19, 2026 and ESTAR Enduser on September 18, 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.*