# Sell.Source vs BSB Polymer Trading App

The clearest difference is iOS requirement: Sell.Source at 12.0 against BSB Polymer Trading App's 14.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Sell.Source ships an update every 2 months, BSB Polymer Trading App monthly. The most recent releases landed on September 19, 2026 and August 12, 2026 respectively.

## The numbers

| Metric | Sell.Source | BSB Polymer Trading App |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Free |
| Size | 28 MB | 169 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SPCX PRIVATE LIMITED](https://appshunter.io/developer/1622946592) | [BSB FORTRADE LLP](https://appshunter.io/developer/1771614460) |

## What reviewers say

### Sell.Source

[App page](https://appshunter.io/ios/app/sellsource/id1622946590)

**Features:** macOS Compatibility

**In-app purchases:** none


### BSB Polymer Trading App

[App page](https://appshunter.io/ios/app/bsb-polymer-trading-app/id6736565371)

Source materials and place bids on a streamlined e-bidding platform. Discover listings from trusted sellers, submit competitive offers, and secure materials at the best prices. Facilitates efficient buying and deal closure directly within the app.

**Highlights:** Browse material listings, Place competitive bids, Secure materials at best prices, Streamlined buying process, Efficient deal closure, Direct in-app transactions

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

**In-app purchases:** none


## Frequently asked questions

### Is Sell.Source free?

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

### Is BSB Polymer Trading App free?

BSB Polymer Trading App is free to download, with no in-app purchases.

### Do Sell.Source or BSB Polymer Trading App have ads?

Neither Sell.Source nor BSB Polymer Trading App shows ads.

### Which is updated more often, Sell.Source or BSB Polymer Trading App?

Sell.Source ships an update every 2 months, and BSB Polymer Trading App monthly. Most recently, Sell.Source was updated on September 19, 2026 and BSB Polymer Trading App on August 12, 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.*