# STEM Connect vs Smoke Tunnel

The clearest difference is update cadence: STEM Connect at weekly against Smoke Tunnel's every 3 months. STEM Connect also leads on iOS requirement (12.0 vs 15.0). Smoke Tunnel's advantage is device support (4 vs 2). On price, 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.

STEM Connect ships an update weekly, Smoke Tunnel every 3 months. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | STEM Connect | Smoke Tunnel |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Size | 32 MB | 25 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 12+ |
| Developer | [STEM s.r.l.](https://appshunter.io/developer/1577070000) | [iElement B.V](https://appshunter.io/developer/1337582935) |

## What reviewers say

### STEM Connect

[App page](https://appshunter.io/ios/app/stem-connect/id1577509982)

**Features:** macOS Compatibility

**In-app purchases:** none


### Smoke Tunnel

[App page](https://appshunter.io/ios/app/smoke-tunnel/id6771621232)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is STEM Connect free?

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

### Is Smoke Tunnel free?

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

### Do STEM Connect or Smoke Tunnel have ads?

Neither STEM Connect nor Smoke Tunnel shows ads.

### Which is updated more often, STEM Connect or Smoke Tunnel?

STEM Connect ships an update weekly, and Smoke Tunnel every 3 months. Most recently, STEM Connect was updated on October 30, 2026 and Smoke Tunnel on November 5, 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.*