Comparison

TMS Sidekick vs Otis eService

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

Head to head
About

TMS Sidekick

This mobile solution provides technicians with on-the-go access to maintenance management systems. It allows for quick communication, task resolution, and data collection for work orders directly from a mobile device.

Highlights
  • On-the-go maintenance management
  • Access TMS database
  • Retrieve asset data
  • Perform scheduled maintenance
  • Collect data for work orders
  • Communicate on the go
Read full description

TMS Sidekick is a mobile computerized maintenance management solution (CMMS) that allows technicians to access their TMS OnSite/TMS OnLine applications from Accruent. The Power of TMS On-the-Go TMS Sidekick provides technicians with the power to communicate on the go and resolve every day service requests and other tasks quickly and accurately. Technicians can access the TMS database, retrieve asset data, perform scheduled maintenance, and even collect data for work orders on-the-fly.

About

Otis eService

Access real-time equipment performance details, receive instant notifications, and view service history. Request service calls easily and manage your equipment's key operating metrics through a personalized dashboard.

Highlights
  • Real-time performance details
  • Instant notifications
  • Service history access
  • Service call requests
  • Equipment metrics dashboard
  • Contact options
Features
Read full description

Smart Phone. Smarter Service. Gain the flexibility and convenience of mobility with performance details of Otis eService. Informed. Get real-time notifications and access to a complete history of activities about your equipment. Organized. Request a service call with a few simple clicks on your smartphone and view open service calls as they occur. Convenience. Access personalized data through one simple performance dashboard and review your equipment’s key operating metrics. Otis at your fingertips. Contact OTISLINE®, your account rep or customer service. Otis’ eService is a web-based system providing around –the-clock access to maintenance customer’s elevator performance and service information. The eService mobile application is explicitly for existing maintenance customers with active eService accounts. Otis eService software supports IOS 8.0 and higher mobile devices. To learn more visit www.otis.com

Screenshots

TMS Sidekick4 screens
Otis eService3 screens

Verdict

The call

The clearest difference is rating: Otis eService at 3.4 against TMS Sidekick's 2.1. TMS Sidekick's advantage is update cadence (monthly vs every 4 months) and ratings volume (15 vs 5). On price, review sentiment, ads and in-app purchases 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

Otis eService holds the better App Store score, 3.4 against 2.1. Both are backed by a comparable volume of ratings — 15 and 5 respectively. Written reviews split almost evenly too, at 17% and 17% positive.

UpkeepUpdate frequency

TMS Sidekick ships an update monthly, Otis eService every 4 months. Both last shipped on November 1, 2026.

Scorecard3 real differences · 7 level
TMS Sidekick versus Otis eService: the parameters behind the verdict, then further details
ParameterTMS SidekickOtis eService
PriceFreeFree
Rating2.1 (15 ratings)3.4 (5 ratings) — better
Positive reviews16.7% of reviews16.7% of reviews
Number of ratings15 — better5
Update frequencyMonthly — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.39.0 — better
Further details — not scored
Size43 MB64 MB
Age rating4+4+
DeveloperFour Rivers Software Systems IncOtis Elevator Company

Customer experience

TMS Sidekick

All ratings15 ratings
Positive13.3%
Neutral13.3%
Negative73.3%
Written reviews12 reviews
Positive16.7%
Neutral33.3%
Negative50.0%

Otis eService

All ratings5 ratings
Positive60.0%
Neutral0.0%
Negative40.0%
Written reviews12 reviews
Positive16.7%
Neutral8.3%
Negative75.0%

In-app purchases

None

TMS Sidekick

No in-app purchases

None

Otis eService

No in-app purchases

Questions

Is TMS Sidekick free?
TMS Sidekick is free to download, with no in-app purchases.
Is Otis eService free?
Otis eService is free to download, with no in-app purchases.
Which has better reviews, TMS Sidekick or Otis eService?
Otis eService is rated higher. TMS Sidekick averages 2.1 out of 5 from 15 ratings, while Otis eService averages 3.4 from 5 ratings.
Do TMS Sidekick or Otis eService have ads?
Neither TMS Sidekick nor Otis eService shows ads.
Which is updated more often, TMS Sidekick or Otis eService?
TMS Sidekick ships an update monthly, and Otis eService every 4 months. Most recently, TMS Sidekick was updated on November 1, 2026 and Otis eService on November 1, 2026.

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