AiMaster vs Carmen Service
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AiMaster
Manage your network-attached storage devices remotely from your mobile device. This app offers comprehensive control over NAS setup, services, settings, and system monitoring. It also provides features for backup management and device location.
- One-click NAS initialization
- Remote control of multiple NAS devices
- Manage services and apps
- Monitor system resources
- Real-time system notifications
- Backup job management
- Find and wake up NAS
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AiMaster is ASUSTOR’s NAS management app for mobile devices that allows you to easily remote control all your NAS devices no matter if you are a home user or IT administrator. Key Features: - Initialize your NAS with one-click setup or a custom setup - Control multiple NAS devices from anywhere and at any time - Easily manage all services and apps in ADM - Easily change NAS and ADM Settings - Quickly review and monitor online users and system resources - Real-time control of system status - Receive real-time system event notifications - Manage all backup jobs and schedules - Helps you find your NAS (Find Me) - Supports One Touch Backup - Supports to wake up your NAS (WOL or WOW) Learn more: https://www.asustor.com/
Carmen Service
Easily schedule vehicle service appointments at your preferred dealership. Book instantly, manage bookings, and find service deals with transparent pricing and duration. Reschedule or cancel without making a phone call.
- Instant service appointment booking
- Manage bookings on the go
- Find service deals
- Transparent pricing and duration
- Reschedule or cancel appointments
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Vehicle service appointments made easy and convenient. Cut the phone tag. Find your next service appointment at your favorite dealership and book instantly anytime, anywhere. Download Carmen Service, a free online service appointment reservation app, and manage your bookings on the go. Find great service deals, select services applicable to your vehicle, with transparent pricing and service duration known upfront. Reschedule or cancel without picking up the phone.
Screenshots
Verdict
The clearest difference is review sentiment: Carmen Service at 100% against AiMaster's 29%. Carmen Service also leads on rating (5.0 vs 2.3) and update cadence (weekly vs every 2 months). AiMaster's advantage is ratings volume (32 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Carmen Service holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: AiMaster has 32 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 29% of AiMaster's written reviews are positive against 100% of Carmen Service's.
AiMaster ships an update every 2 months, Carmen Service weekly. The most recent releases landed on October 7, 2026 and September 17, 2026 respectively.
| Parameter | AiMaster | Carmen Service |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (32 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 28.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 32 — better | 2 |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 33 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | ASUSTOR Inc. | Service Concierge LLC |
Customer experience
AiMaster
Carmen Service
In-app purchases
AiMaster
No in-app purchases
Carmen Service
No in-app purchases
Questions
Is AiMaster free?
Is Carmen Service free?
Which has better reviews, AiMaster or Carmen Service?
Do AiMaster or Carmen Service have ads?
Which is updated more often, AiMaster or Carmen Service?
Other comparisons
