# SECTOR EXPANDER vs eSolar SET

The clearest difference is update cadence: eSolar SET at every 2 months against SECTOR EXPANDER's every 17 months. SECTOR EXPANDER's advantage is review sentiment (18% vs 0%) and iOS requirement (9.0 vs 11.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

SECTOR EXPANDER ships an update every 17 months, eSolar SET every 2 months. The most recent releases landed on September 19, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | SECTOR EXPANDER | eSolar SET |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/esolar-set/id1493874484/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **18.2% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 10 MB | 59 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | +4 |
| Developer | [Morellato S.p.A.](https://appshunter.io/developer/1028313527) | [Guangzhou Sanjing Electric CO., Ltd](https://appshunter.io/developer/583911149) |

## What reviewers say

### SECTOR EXPANDER

[App page](https://appshunter.io/ios/app/sector-expander/id1467868531)

Connect your smartwatch to track fitness metrics like distance, steps, and calories burned. Monitor sleep patterns, set personal goals with visual progress charts, and receive notifications. Use your watch as a remote camera shutter for your phone.

**Highlights:** Smartwatch connectivity, Fitness tracking (distance, steps, calories), Sleep monitoring, Goal setting with progress charts, Notification alerts (calls, messages), Remote camera shutter

**Features:** macOS Compatibility

**In-app purchases:** none


### eSolar SET

[App page](https://appshunter.io/ios/app/esolar-set/id1493874484)

This application enables local Bluetooth and Wi-Fi connections for easy parameter setting and modification of devices. Its user-friendly interface ensures convenient operation for all users.

**Highlights:** Local Bluetooth connection, Local Wi-Fi connection, Parameter setting, Parameter modification, User-friendly interface

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

**In-app purchases:** none


## Frequently asked questions

### Is SECTOR EXPANDER free?

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

### Is eSolar SET free?

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

### Do SECTOR EXPANDER or eSolar SET have ads?

Neither SECTOR EXPANDER nor eSolar SET shows ads.

### Which is updated more often, SECTOR EXPANDER or eSolar SET?

SECTOR EXPANDER ships an update every 17 months, and eSolar SET every 2 months. Most recently, SECTOR EXPANDER was updated on September 19, 2026 and eSolar SET 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.*