# SIS BGTrader vs Option Calculation

The clearest difference is iOS requirement: SIS BGTrader at 13.0 against Option Calculation's 16. 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SIS BGTrader | Option Calculation |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 4 MB | 5 MB |
| Requires iOS | **13.0** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [BenchMark Finance AD](https://appshunter.io/developer/497964679) | [Jinfu Jiang](https://appshunter.io/developer/499276167) |

## What reviewers say

### SIS BGTrader

[App page](https://appshunter.io/ios/app/sis-bgtrader/id1612818439)

**Features:** macOS Compatibility

**In-app purchases:** none


### Option Calculation

[App page](https://appshunter.io/ios/app/option-calculation/id6698853371)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SIS BGTrader free?

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

### Is Option Calculation free?

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

### Do SIS BGTrader or Option Calculation have ads?

Neither SIS BGTrader nor Option Calculation shows ads.

### Which is updated more often, SIS BGTrader or Option Calculation?

SIS BGTrader ships an update every 2 months, and Option Calculation every 2 months. Most recently, SIS BGTrader was updated on October 17, 2026 and Option Calculation on October 25, 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.*