Comparison

Scent Machine vs Print Guardian

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Scent Machine

Features
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Scent Machine is a tool based free app that controls external devices to perform tasks through wireless connection queries. We communicate with external devices through Bluetooth connections or WiFi networks. We can use Bluetooth connection to check the operation status of external devices. Remote technology can be used to send real-time instructions to adjust the working status of external devices. Remote operation can also be achieved by scanning and binding through WiFi. Scent Machine allows you to access and operate external devices for work anytime, anywhere.

About

Print Guardian

Remotely monitor and manage your printer's maintenance with smart alerts and cleaning controls. Designed for DTF workflows, it helps prevent clogs and protect critical components, ensuring reliable operation.

Highlights
  • Remote printer status monitoring
  • Maintenance alerts and notifications
  • Trigger cleaning cycles remotely
  • Real-time activity and readiness updates
  • Simple gateway setup
  • DTF workflow optimization
Read full description

PrintGuardian – Smart Monitoring for Your Printer Keep your printer running reliably—without the guesswork. PrintGuardian connects your printer to a dedicated PrintGuardian M5 gateway, giving you remote visibility and control over essential maintenance. Designed for UV/DT workflows, it helps reduce downtime, prevent clogs, and protect critical components like the print head. Key Features Remote Monitoring Check your printer’s status anytime, from anywhere. Stay informed whether you're in the workshop or away. Maintenance Alerts Get notified when your printer needs attention, so you can act before issues impact your prints. Cleaning Control Trigger cleaning cycles directly from the app to help keep your printer in optimal condition. Real-Time Updates Receive live status feedback, including activity and readiness, so you always know what your printer is doing. Simple Setup Pair your PrintGuardian M5 gateway and get started in minutes. How It Works PrintGuardian works with the PrintGuardian M5 gateway, which securely connects your printer to the app. Once paired, you can monitor and manage maintenance remotely with ease. Supported Devices xTool Apparel Printer xTool Apparel Printer Plus xTool Omni O1 (Single UV, Dual UV, DT/UV) (More devices may be supported in future updates) Why PrintGuardian? UV/DT printers require consistent care to perform at their best. Missing routine maintenance can lead to clogged print heads, inconsistent output, and costly downtime. PrintGuardian helps you stay ahead of these issues with timely alerts and easy access to maintenance controls—so your printer is always ready when you need it. Important Information A PrintGuardian M5 gateway is required to use this app Features and availability may vary depending on your device and setup PrintGuardian is an independent product and is not affiliated with or endorsed by xTool or Makeblock. xTool is a trademark of its respective owner.

Screenshots

Scent Machine3 screens
Print Guardian4 screens

Verdict

The call

The clearest difference is update cadence: Print Guardian at every 3 weeks against Scent Machine's every 5 months. Scent Machine's advantage is iOS requirement (9.0 vs 18.0). On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Scent Machine ships an update every 5 months, Print Guardian every 3 weeks. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 7 level
Scent Machine versus Print Guardian: the parameters behind the verdict, then further details
ParameterScent MachinePrint Guardian
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPod — betteriPhone
Requires iOS9.0 — better18.0
Further details — not scored
Size26 MB11 MB
Age rating4+4+
DeveloperGuangzhou Lanmei Computer Technology Co., Ltd.Cuart Studios Inc.

In-app purchases

None

Scent Machine

No in-app purchases

None

Print Guardian

No in-app purchases

Questions

Is Scent Machine free?
Scent Machine is free to download, with no in-app purchases.
Is Print Guardian free?
Print Guardian is free to download, with no in-app purchases.
Do Scent Machine or Print Guardian have ads?
Neither Scent Machine nor Print Guardian shows ads.
Which is updated more often, Scent Machine or Print Guardian?
Scent Machine ships an update every 5 months, and Print Guardian every 3 weeks. Most recently, Scent Machine was updated on October 16, 2026 and Print Guardian on October 24, 2026.

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