# TVS Diode Array Product Selector vs Electrical & Solar Calculator

The clearest difference is review sentiment: TVS Diode Array Product Selector at 100% against Electrical & Solar Calculator's 0%. TVS Diode Array Product Selector also leads on in-app purchases (none vs 1) and ads (none vs shown). Electrical & Solar Calculator's advantage is update cadence (weekly vs every 6 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. TVS Diode Array Product Selector asks for nothing beyond the download.

TVS Diode Array Product Selector ships an update every 6 months, Electrical & Solar Calculator weekly. The most recent releases landed on September 30, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | TVS Diode Array Product Selector | Electrical & Solar Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tvs-diode-array-product-selector/id438716133/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 8 MB | 32 MB |
| Requires iOS | **8.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Littelfuse, Inc.](https://appshunter.io/developer/503818127) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### TVS Diode Array Product Selector

[App page](https://appshunter.io/ios/app/tvs-diode-array-product-selector/id438716133)

This app helps you find the right TVS Diode Array for your electronic circuits. It asks a few questions about your application to recommend the best product for ESD and lightning surge protection. You can also request samples and access datasheets.

**Highlights:** Product recommendation based on application needs, Sample requests, View product information and characteristics, Download datasheets, Access design resources

**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 TVS Diode Array Product Selector free?

TVS Diode Array Product Selector 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 TVS Diode Array Product Selector or Electrical & Solar Calculator have ads?

Electrical & Solar Calculator shows ads; TVS Diode Array Product Selector does not.

### Which is updated more often, TVS Diode Array Product Selector or Electrical & Solar Calculator?

TVS Diode Array Product Selector ships an update every 6 months, and Electrical & Solar Calculator weekly. Most recently, TVS Diode Array Product Selector was updated on September 30, 2026 and Electrical & Solar Calculator on September 27, 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.*