# Perch Door Sim vs LETS SIGNAL

The clearest difference is rating: LETS SIGNAL at 4.4 against Perch Door Sim's 3.0. LETS SIGNAL also leads on update cadence (every 2 months vs every 4 months) and ratings volume (13 vs 2). Perch Door Sim's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, review sentiment and device support there is nothing between them.

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

LETS SIGNAL holds the better App Store score, 4.4 against 3.0. That said, the two scores are not equally well evidenced: LETS SIGNAL has 13 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Perch Door Sim ships an update every 4 months, LETS SIGNAL every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Perch Door Sim | LETS SIGNAL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/perch-door-sim/id1451437811/reviews) | **[4.4 (13 ratings)](https://appshunter.io/ios/app/lets-signal/id1627839408/reviews)** |
| Number of ratings | 2 | **13** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 50 MB | 68 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mnemo Corp](https://appshunter.io/developer/1153115453) | [Masao Nakajima](https://appshunter.io/developer/1537219074) |

## What reviewers say

### Perch Door Sim

[App page](https://appshunter.io/ios/app/perch-door-sim/id1451437811)

Transform your apartment's intercom experience with this smart solution. It offers a virtual intercom system, eliminating the need for hardware upgrades. Connect two devices to simulate a modern, functional intercom.

**Highlights:** Virtual intercom system, No hardware needed, Connects two devices, Smart intercom simulation, Apartment building solution

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Perch Door Sim free?

Perch Door Sim is free to download, with no in-app purchases.

### Is LETS SIGNAL free?

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

### Which has better reviews, Perch Door Sim or LETS SIGNAL?

LETS SIGNAL is rated higher. Perch Door Sim averages 3.0 out of 5 from 2 ratings, while LETS SIGNAL averages 4.4 from 13 ratings.

### Do Perch Door Sim or LETS SIGNAL have ads?

LETS SIGNAL shows ads; Perch Door Sim does not.

### Which is updated more often, Perch Door Sim or LETS SIGNAL?

Perch Door Sim ships an update every 4 months, and LETS SIGNAL every 2 months. Most recently, Perch Door Sim was updated on October 24, 2026 and LETS SIGNAL on October 24, 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.*