# 4 Speed Express vs Osa optics

The clearest difference is update cadence: Osa optics at every 4 days against 4 Speed Express's every 4 months. 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.

4 Speed Express ships an update every 4 months, Osa optics every 4 days. The most recent releases landed on October 25, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | 4 Speed Express | Osa optics |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Size | 46 MB | 28 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Accurate Smart Solutions](https://appshunter.io/developer/1550900538) | [Ahmed Abdelwahed](https://appshunter.io/developer/1829526766) |

## What reviewers say

### 4 Speed Express

[App page](https://appshunter.io/ios/app/4-speed-express/id6746446133)

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

**In-app purchases:** none


### Osa optics

[App page](https://appshunter.io/ios/app/osa-optics/id6760480660)

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

**In-app purchases:** none


## Frequently asked questions

### Is 4 Speed Express free?

4 Speed Express is free to download, with no in-app purchases.

### Is Osa optics free?

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

### Do 4 Speed Express or Osa optics have ads?

Neither 4 Speed Express nor Osa optics shows ads.

### Which is updated more often, 4 Speed Express or Osa optics?

4 Speed Express ships an update every 4 months, and Osa optics every 4 days. Most recently, 4 Speed Express was updated on October 25, 2026 and Osa optics on October 19, 2026.

---

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