Comparison

Optsy Mobile vs CORE Service

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

Head to head
About

Optsy Mobile

This field service management app helps technicians in the field efficiently manage their schedules, work orders, and customer interactions. It allows for real-time updates, offline functionality, and direct communication with customers and contacts.

Highlights
  • View and update schedules
  • Record work order status changes
  • Track time-in/time-out
  • Update labor and invoice details
  • Record materials used and add attachments
  • Capture customer signatures
  • Offline functionality
Features
Read full description

Optsy Mobile is the ultimate Field Service Management application for service techs in the field. Working in conjunction with the Optsy server application, this app will allow service companies and their technicians to work seamlessly and more efficient. Some of the highlights are: · View and update all details of your and/or your field techs schedules. · Record status changes to work orders in process · Change time-in and time-out · Update labor details, invoice information · Record materials used on the job and add attachments · Capture customer’s signature · Call, email and get driving directions directly from the application. For your customers, job sites, contacts, vendors and manufacturers · View A/R balances for customers and job sites · Most features work when device is offline and has no internet connection For any technical assistance or feature requests please contact our support team directly.

About

CORE Service

This app provides a wireless interface for commercial HVAC technicians to control and service specific Lennox rooftop units. It offers guided setup, enhanced testing, and parameter configuration to streamline the service process.

Highlights
  • Wireless mobile service app
  • Guided setup with progress indicators
  • Enhanced test functionality
  • Real-time sensor readings and trending
  • Parameter configuration
  • Exportable setup summaries
Features
Read full description

This app is the interface for the Lennox® CORE Unit Controller in Model L (L*M), Enlight (L*T), Xion (L*X) and Strategos (S*H) Commercial Rooftop Units. You must be within 25ft of a unit to connect and utilize this app. The Lennox® CORE Control System reinvents the service process in the palm of your hand with a wireless mobile service app, making setup and service faster than ever before. This app is intended for commercial HVAC service technicians to interface with CORE Unit Controller equipped unitary packaged rooftop units. App Features: - Guided Setup with progress indicators, detailed help, and exportable summaries drive simple and trouble-free setup, reducing commissioning times over similar systems. - Enhanced Test Functionality provides real-time sensor readings, trending, and reports that enable easy troubleshooting. - Ability to set and configure parameters of the CORE Control System drive tailored sequences of operation and make the CORE Unit Controller the most flexible Lennox has to offer.

Screenshots

Optsy Mobile4 screens
CORE Service3 screens

Verdict

The call

The clearest difference is rating: CORE Service at 3.6 against Optsy Mobile's 3.0. Optsy Mobile's advantage is review sentiment (20% vs 0%) and iOS requirement (13.0 vs 15.6). On price, ratings volume, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

CORE Service holds the better App Store score, 3.6 against 3.0. Both are backed by a comparable volume of ratings — 9 and 19 respectively. Written reviews complicate that: 20% of Optsy Mobile's written reviews are positive against 0% of CORE Service's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
Optsy Mobile versus CORE Service: the parameters behind the verdict, then further details
ParameterOptsy MobileCORE Service
PriceFreeFree
Rating3.0 (9 ratings)3.6 (19 ratings) — better
Positive reviews20.0% of reviews — better0.0% of reviews
Number of ratings919 — better
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size27 MB47 MB
Age rating4+4+
DeveloperOptsy LLCLennox Industries

Customer experience

Optsy Mobile

All ratings9 ratings
Positive44.4%
Neutral11.1%
Negative44.4%
Written reviews25 reviews
Positive20.0%
Neutral4.0%
Negative76.0%

CORE Service

All ratings19 ratings
Positive63.2%
Neutral0.0%
Negative36.8%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Optsy Mobile

No in-app purchases

None

CORE Service

No in-app purchases

Questions

Is Optsy Mobile free?
Optsy Mobile is free to download, with no in-app purchases.
Is CORE Service free?
CORE Service is free to download, with no in-app purchases.
Which has better reviews, Optsy Mobile or CORE Service?
CORE Service is rated higher. Optsy Mobile averages 3.0 out of 5 from 9 ratings, while CORE Service averages 3.6 from 19 ratings.
Do Optsy Mobile or CORE Service have ads?
Neither Optsy Mobile nor CORE Service shows ads.
Which is updated more often, Optsy Mobile or CORE Service?
Optsy Mobile ships an update every 3 months, and CORE Service every 3 months. Most recently, Optsy Mobile was updated on October 17, 2026 and CORE Service on October 7, 2026.

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