# JINOU Bluetooth Module vs Electrical & Solar Calculator

The clearest difference is in-app purchases: JINOU Bluetooth Module at none against Electrical & Solar Calculator's 1. JINOU Bluetooth Module also leads on ads (none vs shown) and iOS requirement (9.0 vs 15.0). Electrical & Solar Calculator's advantage is update cadence (weekly vs every 7 months). On price and device support there is nothing between them.

Both are free to download. Electrical & Solar Calculator sells 1 one-off in-app purchase. JINOU Bluetooth Module asks for nothing beyond the download.

JINOU Bluetooth Module ships an update every 7 months, Electrical & Solar Calculator weekly. The most recent releases landed on October 4, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | JINOU Bluetooth Module | Electrical & Solar Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 32 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chongqing Jin'Ou Technology Development Co., Ltd.](https://appshunter.io/developer/1715258511) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### JINOU Bluetooth Module

[App page](https://appshunter.io/ios/app/jinou-bluetooth-module/id529075437)

**Features:** macOS Compatibility

**In-app purchases:** none


### Electrical & Solar Calculator

[App page](https://appshunter.io/ios/app/electrical-and-solar-calculator/id6743133160)

This app provides a suite of tools for electricians, engineers, and solar installers to quickly solve common electrical design and installation problems. It covers wire sizing, voltage drop, circuit breaker sizing, motor calculations, and solar system planning.

**Highlights:** Resistor, capacitor, and inductor circuit calculations, Wire sizing and voltage drop analysis, Circuit breaker and transformer sizing, Motor wiring and power factor correction, Solar system planning tools, Customizable units (metric/imperial)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro ID | $2.99 | one-time |


## Frequently asked questions

### Is JINOU Bluetooth Module free?

JINOU Bluetooth Module is free to download, with no in-app purchases.

### Is Electrical & Solar Calculator free?

Electrical & Solar Calculator is free to download, with in-app purchases available.

### Do JINOU Bluetooth Module or Electrical & Solar Calculator have ads?

Electrical & Solar Calculator shows ads; JINOU Bluetooth Module does not.

### Which is updated more often, JINOU Bluetooth Module or Electrical & Solar Calculator?

JINOU Bluetooth Module ships an update every 7 months, and Electrical & Solar Calculator weekly. Most recently, JINOU Bluetooth Module was updated on October 4, 2026 and Electrical & Solar Calculator on October 22, 2026.

---

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