# LETS SIGNAL vs Compac Refuel

The clearest difference is in-app purchases: Compac Refuel at none against LETS SIGNAL's 1. Compac Refuel also leads on ads (none vs shown). LETS SIGNAL's advantage is iOS requirement (15.0 vs 17.6). On price, update cadence and device support there is nothing between them.

Both are free to download. LETS SIGNAL sells 1 one-off in-app purchase. Compac Refuel asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | LETS SIGNAL | Compac Refuel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (13 ratings)](https://appshunter.io/ios/app/lets-signal/id1627839408/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 68 MB | 11 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Masao Nakajima](https://appshunter.io/developer/1537219074) | [Compac Industries Ltd.](https://appshunter.io/developer/1484754251) |

## What reviewers say

### LETS SIGNAL

[App page](https://appshunter.io/ios/app/lets-signal/id1627839408)

Simulate realistic traffic signals and crosswalks from around the world. Customize signal timings and experience different country variations. Upgrade to unlock car traffic lights.

**Highlights:** Realistic crosswalk signal simulation, 7 crosswalk signals from 4 countries, Customizable waiting, lighting, and flashing times, Unlock car traffic lights with premium upgrade, Push button operation

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Premium | $3.99 | one-time |


### Compac Refuel

[App page](https://appshunter.io/ios/app/compac-refuel/id6741179759)

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

**In-app purchases:** none


## Frequently asked questions

### Is LETS SIGNAL free?

LETS SIGNAL is free to download, with in-app purchases available.

### Is Compac Refuel free?

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

### Do LETS SIGNAL or Compac Refuel have ads?

LETS SIGNAL shows ads; Compac Refuel does not.

### Which is updated more often, LETS SIGNAL or Compac Refuel?

LETS SIGNAL ships an update every 2 months, and Compac Refuel every 2 months. Most recently, LETS SIGNAL was updated on October 17, 2026 and Compac Refuel on October 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.*