# Roulez éveillé vs CarlOs

The clearest difference is update cadence: CarlOs at every 5 weeks against Roulez éveillé's every 12 months. Roulez éveillé's advantage is review sentiment (38% vs 25%) and iOS requirement (9.0 vs 13.4). 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.

Roulez éveillé ships an update every 12 months, CarlOs every 5 weeks. The most recent releases landed on August 26, 2026 and August 25, 2026 respectively.

## The numbers

| Metric | Roulez éveillé | CarlOs |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **37.8% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 48 MB | 33 MB |
| Requires iOS | **9.0** | 13.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [VINCI.Autoroutes](https://appshunter.io/developer/1002317627) | [ARROW GENERIQUES](https://appshunter.io/developer/1037851142) |

## What reviewers say

### Roulez éveillé

[App page](https://appshunter.io/ios/app/roulez-eveille/id667454860)

Assess your alertness before driving with a quick reaction time test. Receive personalized advice on rest and fatigue management, and access guided relaxation sessions to ensure safe journeys.

**Highlights:** Reaction time test, Alertness assessment, Fatigue management advice, Guided relaxation sessions, Test history tracking, Social sharing

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

**In-app purchases:** none


### CarlOs

[App page](https://appshunter.io/ios/app/carlos/id1442806830)

This app helps you understand your daily calcium needs and track your dietary intake to support bone health. It provides practical information on bone health, calcium, and osteoporosis. All information is for guidance only and not a substitute for medical advice.

**Highlights:** Calculate daily calcium needs, Track dietary calcium intake, Monitor calcium intake evolution, Access bone health information, Learn about osteoporosis and risk factors

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

**In-app purchases:** none


## Frequently asked questions

### Is Roulez éveillé free?

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

### Is CarlOs free?

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

### Do Roulez éveillé or CarlOs have ads?

Neither Roulez éveillé nor CarlOs shows ads.

### Which is updated more often, Roulez éveillé or CarlOs?

Roulez éveillé ships an update every 12 months, and CarlOs every 5 weeks. Most recently, Roulez éveillé was updated on August 26, 2026 and CarlOs on August 25, 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.*