# FRUSTRATE vs SI

The clearest difference is update cadence: SI at every 3 days against FRUSTRATE's every 4 months. FRUSTRATE's advantage is iOS requirement (14.0 vs 16.4). 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.

FRUSTRATE ships an update every 4 months, SI every 3 days. The most recent releases landed on October 24, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | FRUSTRATE | SI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (209 ratings)](https://appshunter.io/ios/app/frustrate/id1585722899/reviews)** | — |
| Number of ratings | **209** | — |
| Positive reviews | 84.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 446 MB | 41 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [yosmari gomez](https://appshunter.io/developer/1585722901) | [Sensor Industries](https://appshunter.io/developer/1510183454) |

## What reviewers say

### FRUSTRATE

[App page](https://appshunter.io/ios/app/frustrate/id1585722899)

Stay connected to the drag racing world with daily updates and pictures. This app keeps you informed about the latest in drag racing.

**Highlights:** Daily updates, Pictures, Drag racing news, Stay connected

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### SI

[App page](https://appshunter.io/ios/app/si-field/id6762649325)

**In-app purchases:** none


## Frequently asked questions

### Is FRUSTRATE free?

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

### Is SI free?

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

### Do FRUSTRATE or SI have ads?

Neither FRUSTRATE nor SI shows ads.

### Which is updated more often, FRUSTRATE or SI?

FRUSTRATE ships an update every 4 months, and SI every 3 days. Most recently, FRUSTRATE was updated on October 24, 2026 and SI on September 11, 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.*