Comparison

Crabtree On vs Optimech

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

Head to head

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About

Crabtree On

Control smart building functions like lighting, climate, and security directly from your smartphone. Monitor device status and manage various IoT devices remotely for enhanced convenience.

Highlights

Smart device connectivity
Lighting control
Curtain/blind adjustment
Climate management
Audio/video control
Security monitoring
IR device operation

Features

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CrabtreeOn app enables users to easily connect with various Crabtree smart devices to control all functions of a smart building thru Smartphones. With Crabtree app, you can monitor & control Lighting Curtains /blinds Climate Audio/video Security IR Devices Sensors SmartPlug and other IoT devices on the go and enjoy useful services like status check, device control, home view etc

About

Optimech

Features

Read full description

Optmech is your go-to app for hassle-free booking of services like AC repairs, plumbing, and more, all at your fingertips. Get quick, reliable help whenever you need it. Download now!

Screenshots

Crabtree On1 screens

Optimech3 screens

Verdict

The call

The clearest difference is update cadence: Optimech at fortnightly against Crabtree On's every 8 months. Crabtree On's advantage is iOS requirement (9.1 vs 13.0). 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

Crabtree On ships an update every 8 months, Optimech fortnightly. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 6 level

Crabtree On versus Optimech: the parameters behind the verdict, then further details
Parameter	Crabtree On	Optimech
Price	Free	Free
Positive reviews	0.0% of reviews	—
Update frequency	Every 8 months	Fortnightly — better
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	9.1 — better	13.0
Further details — not scored
Size	68 MB	18 MB
Age rating	4+	4+
Developer	Havells India Limited	Heffl Ventures LLC

In-app purchases

None

Crabtree On

No in-app purchases

None

Optimech

No in-app purchases

Questions

Is Crabtree On free?

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

Is Optimech free?

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

Do Crabtree On or Optimech have ads?

Neither Crabtree On nor Optimech shows ads.

Which is updated more often, Crabtree On or Optimech?

Crabtree On ships an update every 8 months, and Optimech fortnightly. Most recently, Crabtree On was updated on October 16, 2026 and Optimech on October 9, 2026.