# ST op vs SB Inter App

The clearest difference is update cadence: ST op at every 6 months against SB Inter App's every 38 months. ST op also leads on iOS requirement (8.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

ST op ships an update every 6 months, SB Inter App every 38 months. The most recent releases landed on October 8, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | ST op | SB Inter App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/st-op-amps/id574823376/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 38 months |
| Monetization | Free | — |
| Size | 93 MB | 33 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [STMicroelectronics](https://appshunter.io/developer/1801774735) | [Andeesh Mehdi Syed](https://appshunter.io/developer/1676226599) |

## What reviewers say

### ST op

[App page](https://appshunter.io/ios/app/st-op-amps/id574823376)

This app helps engineers select operational amplifiers, comparators, and current sense amplifiers for their projects. It provides datasheets, common schematics, and package dimensions.

**Highlights:** Operational amplifier product selector, Downloadable datasheets, Commonly used schematics, Compensation methods information, Package mechanical dimensions

**Features:** macOS Compatibility

**In-app purchases:** none


### SB Inter App

[App page](https://appshunter.io/ios/app/sb-inter-app/id6446139489)

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

**In-app purchases:** none


## Frequently asked questions

### Is ST op free?

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

### Is SB Inter App free?

SB Inter App is free to download, with no in-app purchases.

### Do ST op or SB Inter App have ads?

Neither ST op nor SB Inter App shows ads.

### Which is updated more often, ST op or SB Inter App?

ST op ships an update every 6 months, and SB Inter App every 38 months. Most recently, ST op was updated on October 8, 2026 and SB Inter App on October 27, 2026.

---

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