# SmartSignal vs 911Cellular BusTracker

The clearest difference is iOS requirement: SmartSignal at 9.0 against 911Cellular BusTracker's 14.0. On price, update cadence, 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.

SmartSignal ships an update every 13 months, 911Cellular BusTracker every 7 months. The most recent releases landed on September 21, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | SmartSignal | 911Cellular BusTracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.5 (29 ratings)](https://appshunter.io/ios/app/smartsignal/id1408372123/reviews)** | — |
| Number of ratings | **29** | — |
| Positive reviews | 4.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 7 months** |
| Monetization | Free | — |
| Size | 129 MB | 9 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Empowerment Technologies Inc.](https://appshunter.io/developer/1605838244) | [911Cellular](https://appshunter.io/developer/1107605923) |

## What reviewers say

### SmartSignal

[App page](https://appshunter.io/ios/app/smartsignal/id1408372123)

Access and control your security system remotely via your smartphone or tablet. View live footage and interact with your system from any location after creating an account and adding your device.

**Highlights:** Remote security system access, View live footage, Interact with security system, Create user account, Add security system

**Features:** macOS Compatibility

**In-app purchases:** none


### 911Cellular BusTracker

[App page](https://appshunter.io/ios/app/911cellular-bustracker/id6443684947)

**In-app purchases:** none


## Frequently asked questions

### Is SmartSignal free?

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

### Is 911Cellular BusTracker free?

911Cellular BusTracker is free to download, with no in-app purchases.

### Do SmartSignal or 911Cellular BusTracker have ads?

Neither SmartSignal nor 911Cellular BusTracker shows ads.

### Which is updated more often, SmartSignal or 911Cellular BusTracker?

SmartSignal ships an update every 13 months, and 911Cellular BusTracker every 7 months. Most recently, SmartSignal was updated on September 21, 2026 and 911Cellular BusTracker on September 14, 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.*