# TVS Diode Array Product Selector vs SigTrax

The clearest difference is price: TVS Diode Array Product Selector at Free against SigTrax's $2.99. TVS Diode Array Product Selector also leads on rating (5.0 vs 3.6) and review sentiment (100% vs 60%). SigTrax's advantage is chart position (#197 vs unranked) and ratings volume (8 vs 1). On ads and device support there is nothing between them.

TVS Diode Array Product Selector is free to download; SigTrax costs $2.99 up front. SigTrax sells 2 one-off in-app purchases. TVS Diode Array Product Selector asks for nothing beyond the download.

TVS Diode Array Product Selector holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: SigTrax has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of TVS Diode Array Product Selector's written reviews are positive against 60% of SigTrax's.

TVS Diode Array Product Selector ships an update every 6 months, SigTrax every 3 months. The most recent releases landed on September 30, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | TVS Diode Array Product Selector | SigTrax |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tvs-diode-array-product-selector/id438716133/reviews)** | [3.6 (8 ratings)](https://appshunter.io/ios/app/sigtrax/id714920367/reviews) |
| Number of ratings | 1 | **8** |
| Positive reviews | **100.0% of reviews** | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#197** |
| Size | 8 MB | 5 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) | [Amcept, LLC](https://appshunter.io/developer/714920370) |

## 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


### SigTrax

[App page](https://appshunter.io/ios/app/sigtrax/id714920367)

**Currently charting:** #197 Top Paid · Productivity (US App Store)

This app helps users locate signal origins by plotting bearings and identifying intersection points. It simplifies the tracking process with mobile device capabilities, offering features like automatic Crosspoint calculation and driving directions to identified locations.

**Highlights:** Plot bearings and determine Crosspoints, High precision GPS locating, Handheld mapping, Automatic Crosspoint management, Driving maps with voice routing, Archive and retrieve bearing collections

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SigShare | $1.99 | one-time |
| DataTrax | $5.99 | 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 SigTrax free?

SigTrax costs $2.99, and also offers in-app purchases.

### Which has better reviews, TVS Diode Array Product Selector or SigTrax?

TVS Diode Array Product Selector is rated higher. TVS Diode Array Product Selector averages 5.0 out of 5 from 1 ratings, while SigTrax averages 3.6 from 8 ratings.

### Do TVS Diode Array Product Selector or SigTrax have ads?

Neither TVS Diode Array Product Selector nor SigTrax shows ads.

### Which is updated more often, TVS Diode Array Product Selector or SigTrax?

TVS Diode Array Product Selector ships an update every 6 months, and SigTrax every 3 months. Most recently, TVS Diode Array Product Selector was updated on September 30, 2026 and SigTrax on October 6, 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.*