# SmartSignal vs Scheme O

The clearest difference is rating: Scheme O at 3.7 against SmartSignal's 1.5. Scheme O also leads on update cadence (every 9 days vs every 13 months). SmartSignal's advantage is ratings volume (29 vs 3) and iOS requirement (9.0 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scheme O holds the better App Store score, 3.7 against 1.5. That said, the two scores are not equally well evidenced: SmartSignal has 29 ratings behind it against 3, so its average is the more settled of the two.

SmartSignal ships an update every 13 months, Scheme O every 9 days. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SmartSignal | Scheme O |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (29 ratings)](https://appshunter.io/ios/app/smartsignal/id1408372123/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/scheme-o/id6763953291/reviews)** |
| Number of ratings | **29** | 3 |
| Positive reviews | 4.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 9 days** |
| Monetization | Free | Free |
| Size | 129 MB | 13 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Empowerment Technologies Inc.](https://appshunter.io/developer/1605838244) | [Collin Bergstrom](https://appshunter.io/developer/1895571491) |

## 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


### Scheme O

[App page](https://appshunter.io/ios/app/scheme-o/id6763953291)

This tactical planning tool enables leaders to quickly create mission graphics and planning products. It allows for rapid geometry creation, flexible map drawing, and route planning with checkpoints, streamlining the mission planning process.

**Highlights:** Rapid geometry creation, Flexible map drawing, Route planning with checkpoints, Integrated planning tools, Close air support planning, Weather integration, Data matrix output, 3D recon

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

**In-app purchases:** none


## Frequently asked questions

### Is SmartSignal free?

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

### Is Scheme O free?

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

### Which has better reviews, SmartSignal or Scheme O?

Scheme O is rated higher. SmartSignal averages 1.5 out of 5 from 29 ratings, while Scheme O averages 3.7 from 3 ratings.

### Do SmartSignal or Scheme O have ads?

Neither SmartSignal nor Scheme O shows ads.

### Which is updated more often, SmartSignal or Scheme O?

SmartSignal ships an update every 13 months, and Scheme O every 9 days. Most recently, SmartSignal was updated on October 22, 2026 and Scheme O 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.*