Scent Master Pro vs EV Check In
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Scent Master Pro
This intelligent fragrance management app allows real-time monitoring and remote control of connected devices. Users can customize working modes, set schedules, and track oil levels for a seamless experience.
- Remote device control
- Custom working modes
- Real-time oil level monitoring
- Intelligent usage calibration
- Device sharing management
- Scheduled operation
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Fragrance Housekeeper, a safe and professional intelligent fragrance management application, allows you not only to monitor and remotely control the equipment in real time, but also to set different scene modes, timing, one button to open, creating a fully intelligent fragrance housekeeper for you! Main functions: [Custom working mode] Free to set the startup and shutdown time to meet the needs of multiple scenarios. [Real-time monitoring of oil quantity and fragrance] Real-time view of oil, fuel consumption, intelligent calibration of the remaining days of use, real-time monitoring of equipment status. [Device Sharing Management] After creating the device, the administrator can share the device in real time through the mobile phone number, and control the permission independently, so that the device management is secure.
EV Check In
This free app provides real-time information on EV charger availability, powered by user check-ins. Avoid wasted trips by seeing if a charger is in use before you arrive. Users can contribute by scanning QR codes and updating charger status.
- Real-time charger status
- Community-powered updates
- QR code scanner
- User check-ins
- Contribute to community data
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Free EV chargers are always busy. Stop guessing. EV Check In is a free, community-powered app that shows you in real time if a charger is in use before you get there. How it works • Scan the QR code on the charger • Check in when you start charging • See live status from other drivers • Let others unplug when you're finished (toggle switch) No QR code on your charger? Print one in seconds and help your local EV community stay updated.
Screenshots
Verdict
The clearest difference is update cadence: EV Check In at every 2 days against Scent Master Pro's fortnightly. Scent Master Pro's advantage is iOS requirement (13.0 vs 15.1). On price, rating, ratings volume and ads 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.
On the App Store both sit at effectively the same score — 5.0 for Scent Master Pro against 5.0 for EV Check In. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Scent Master Pro ships an update fortnightly, EV Check In every 2 days. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.
| Parameter | Scent Master Pro | EV Check In |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 180 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | 兵 姚 | CrewSwap app LLC |
Customer experience
Scent Master Pro
EV Check In
In-app purchases
Scent Master Pro
No in-app purchases
EV Check In
No in-app purchases
Questions
Is Scent Master Pro free?
Is EV Check In free?
Which has better reviews, Scent Master Pro or EV Check In?
Do Scent Master Pro or EV Check In have ads?
Which is updated more often, Scent Master Pro or EV Check In?
Other comparisons
