# S3 vs Pro.Opt

S3 and Pro.Opt are too close to call on the numbers: across 7 compared parameters — price, review sentiment, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | S3 | Pro.Opt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/proopt/id6782119697/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Free | Free |
| Size | 24 MB | 145 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ORION LLC](https://appshunter.io/developer/1779073185) | [Apps Group LLC](https://appshunter.io/developer/1433886982) |

## What reviewers say

### S3

[App page](https://appshunter.io/ios/app/s3/id1604373707)

This app provides a mobile client portal and a comprehensive catalog for electrical and lighting products. It allows businesses to browse over 10,000 items, check availability and prices, track orders, and access marketing materials.

**Highlights:** Full product catalog access, Search by name, article, or barcode, Check stock availability and prices, Track order status, Access marketing materials, View company news and promotions

**Features:** macOS Compatibility

**In-app purchases:** none


### Pro.Opt

[App page](https://appshunter.io/ios/app/proopt/id6782119697)

Discover wholesale suppliers across Russia with competitive pricing, often matching or beating Chinese imports. Avoid international shipping and customs hassles by finding local, reliable manufacturers and products for resale. The app features a wide selection and convenient search to quickly connect you with the right supplier.

**Highlights:** Find suppliers across Russia, Competitive pricing, Avoid international shipping, Convenient search, Wide product assortment, Categorized suppliers

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is S3 free?

S3 is free to download, with no in-app purchases.

### Is Pro.Opt free?

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

### Do S3 or Pro.Opt have ads?

Neither S3 nor Pro.Opt shows ads.

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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.*