Comparison

NTN Guardian vs iMaintain CMMS

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

Head to head
About

NTN Guardian

Features
Read full description

NTN Guardian wireless vibration sensors and cloud software democratizes predictive maintenance. Monitor machine condition and take vibration readings on-demand using NTN Guardian mobile app.

About

iMaintain CMMS

Features
Read full description

iMaintain revolutionises maintenance management by putting AI-powered insights and full CMMS functionality in your pocket. Whether you’re a maintenance technician, manager, or operations leader, iMaintain helps you solve problems faster, keep equipment running, and track performance with ease. With iMaintain you can: β€’ Get instant answers to maintenance questions with iMaintain Brain β€’ Assign, schedule, and track work orders with AI-optimised planning β€’ Manage all assets and schedules in the iMaintain Asset Hub β€’ Monitor team capacity and bottlenecks in the Manager Portal β€’ Predict downtime before it happens with AI-driven insights β€’ Store and search manuals, SOPs, and safety guidelines β€’ Track KPIs, downtime reduction, and efficiency gains in real time Why choose iMaintain? β€’ Reduce unplanned downtime β€’ Speed up troubleshooting β€’ Bridge skill gaps across teams β€’ Optimise resources and workforce allocation β€’ Drive continuous improvement with actionable analytics Thousands of maintenance professionals already rely on iMaintain to keep their operations at peak performance. Download iMaintain today and transform the way you maintain, manage, and optimise your assets.

Screenshots

NTN Guardian4 screens
iMaintain CMMS4 screens

Verdict

The call

NTN Guardian and iMaintain CMMS are too close to call on the numbers: across 6 compared parameters β€” price, update cadence, ads and in-app purchases among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

NTN Guardian ships an update every 2 weeks, iMaintain CMMS every 3 weeks. The most recent releases landed on October 12, 2026 and October 28, 2026 respectively.

ScorecardNo meaningful differences
NTN Guardian versus iMaintain CMMS: the parameters behind the verdict, then further details
ParameterNTN GuardianiMaintain CMMS
PriceFreeFree
Update frequencyEvery 2 weeks β€” betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1615.1 β€” better
Further details β€” not scored
Size25 MB30 MB
Age rating4+17+
DeveloperNTN Bearing Corporation of AmericaiMaintain Solutions Limited

In-app purchases

None

NTN Guardian

No in-app purchases

None

iMaintain CMMS

No in-app purchases

Questions

Is NTN Guardian free?
NTN Guardian is free to download, with no in-app purchases.
Is iMaintain CMMS free?
iMaintain CMMS is free to download, with no in-app purchases.
Do NTN Guardian or iMaintain CMMS have ads?
Neither NTN Guardian nor iMaintain CMMS shows ads.
Which is updated more often, NTN Guardian or iMaintain CMMS?
NTN Guardian ships an update every 2 weeks, and iMaintain CMMS every 3 weeks. Most recently, NTN Guardian was updated on October 12, 2026 and iMaintain CMMS on October 28, 2026.

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