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IBM Rational Service Tester vs SmartBear TestLeft comparison

IBM and SmartBear are both solutions in the Functional Testing Tools category. IBM is ranked #42, while SmartBear is ranked #36. IBM holds a 0.1% mindshare in FT, compared to SmartBear’s 0.2% mindshare. Additionally, 100% of SmartBear users are willing to recommend the solution.
IBM Rational Service Tester
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  • 73 Comparison Views
SmartBear TestLeft
Read 1 SmartBear TestLeft review
  • 211 Views
  • 196 Comparison Views
100% willing to recommend
 

Comparison Buyer's Guide

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Executive Summary
We performed a comparison between IBM Rational Service Tester and SmartBear TestLeft based on real PeerSpot user reviews.

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To learn more, read our detailed Functional Testing Tools Report (Updated: July 2025).
Buyer's Guide
Functional Testing Tools
July 2025
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Helped 861,170 peers since 2012

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

IBM Rational Service Tester
Ranking in Functional Testing Tools
42nd
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
No ranking in other categories
SmartBear TestLeft
Ranking in Functional Testing Tools
36th
Average Rating
7.0
Reviews Sentiment
6.8
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2025, in the Functional Testing Tools category, the mindshare of IBM Rational Service Tester is 0.1%, down from 0.1% compared to the previous year. The mindshare of SmartBear TestLeft is 0.2%, down from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Functional Testing Tools
 

Featured Reviews

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reviewer1378161 - PeerSpot reviewer
Simple to set up and the test execute feature is helpful, but the cost could be reduced
Our primary use case is Point of Sale (POS) testing The most valuable features are test executor and development. TestLeft captures a lot of space in terms of memory, which is one issue that can be improved. We have been using SmartBear TestLeft for the past month. Stability-wise, TestLeft is…
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Comparisons

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SmartBear TestComplete vs SmartBear TestLeft Logo
SmartBear TestComplete vs SmartBear TestLeft
Compared 100% of the time
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Product Reports

Buyer's Guide
Functional Testing Tools
July 2025
IBM Rational Service Tester reportDownload IBM Rational Service Tester product report
Buyer's Guide
Functional Testing Tools
July 2025
SmartBear TestLeft reportDownload SmartBear TestLeft product report
 

Also Known As

Rational Service Tester
No data available
 

Overview

IBM Rational Service Tester for SOA Quality is a functional and regression testing tool that enables code-free testing of non-GUI services. Rational Service Tester for SOA Quality helps software delivery teams ensure the functionality, interoperability and performance of service-oriented architecture (SOA) software and web services. Rational Service Tester for SOA Quality helps software teams perform and deliver quality assurance.
IBM
SmartBear TestLeft a functional testing tool fully embedded in standard IDEs. TestLeft is a powerful yet lean functional testing tool for dev-testers working in Agile teams. It fully embeds into standard development IDEs. A built-in access to object and method library is also available with TestLeft. Dev-testers can thereby easily and quickly create robust functional automated tests without leaving their favorite IDEs such as Visual Studio. It also works well with other tools in dev eco-systems such as source control or continuous integration systems.
SmartBear
 

Sample Customers

IMM, ADP, Bangkok Hospital, Nice Céte d'Azur, Durham Police Department, Whogohost Ltd., Skypicker, Infinity Computers and Communications Company, Getin Noble Bank S.A., KPJ Healthcare Berhad
American Red Cross, CISCO, HONDA, ADIDAS, TBC bank
Buyer's Guide
Functional Testing Tools
July 2025
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