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IBM Rational Service Tester vs Tricentis Tosca comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jun 3, 2026

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
40th
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
No ranking in other categories
Tricentis Tosca
Ranking in Functional Testing Tools
1st
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
114
Ranking in other categories
Service Virtualization (1st), Mobile App Testing Tools (1st), Regression Testing Tools (1st), API Testing Tools (2nd), Test Automation Tools (1st)
 

Mindshare comparison

As of August 2026, in the Functional Testing Tools category, the mindshare of IBM Rational Service Tester is 0.7%, up from 0.1% compared to the previous year. The mindshare of Tricentis Tosca is 9.7%, down from 18.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Functional Testing Tools Mindshare Distribution
ProductMindshare (%)
Tricentis Tosca9.7%
IBM Rational Service Tester0.7%
Other89.6%
Functional Testing Tools
 

Featured Reviews

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AKSHAYRATHI - PeerSpot reviewer
Senior engineer at Nagarro
End-to-end regression automation has accelerated delivery and now secures complex test data
I think Tosca can be improved, particularly in AI capabilities because right now Tosca does not have any strong API capabilities. It has some AI features in the newer version, but many organizations have not adopted these due to version-specific problems, as some are still using older versions. From an AI point of view, they can enhance reliability since the world is moving towards AI, and every tool must be integrated. While Tosca has made attempts, I have not used them and they are not widely adopted, so they are stuck in the testing phase in my organization. I would also mention that while I am currently using Tosca Mobile, the loading part and connectivity issues need improvement. They should better integrate AI features that are already present but not widely used across many organizations. Reliability on the AI aspect needs enhancement for practical application. From the perspective of governance and security, I believe Tosca can develop its own LLM or leverage third-party LLMs while maintaining security and risk management regarding client data. Many companies prefer using Tosca due to data security, which is crucial. An in-house LLM could significantly enhance its debugging power and provide helpful solutions upon test case failure.
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Top Industries

By visitors reading reviews
No data available
Manufacturing Company
12%
Financial Services Firm
11%
Computer Software Company
8%
Retailer
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise24
Large Enterprise75
 

Questions from the Community

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How does Micro Focus UFT One compare to Tricentis Tosca?
We reviewed MicroFocus UFT One but ultimately chose to use Tricentis Tosca because we needed API testing. MicroFocus UFT is a performance and functional testing tool. We tested it, and it was well...
How does Tricentis Tosca compare with Worksoft Certify?
Tosca fulfills our business needs better because it is an end-to-end solution across technologies. We like that it is scriptless, so even non-experienced staff can use it. To put it simply, with To...
What is your experience regarding pricing and costs for Tricentis Tosca?
The pricing for Tricentis Tosca is extremely high, and I rate it as ten in terms of expense. It is really pricey in the market, making it more suitable for large enterprises rather than small or me...
 

Also Known As

Rational Service Tester
Orchestrated Service Virtualization
 

Overview

 

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
HBO, AMEX, BMW Group, ING, Bosch, Austrian Airlines, Deutsche Bank, Henkel, Allianz, Bank of America, UBS, Orange, Siemens, Swiss Re, Vodafone
Find out what your peers are saying about Tricentis, Worksoft, OpenText and others in Functional Testing Tools. Updated: July 2026.
907,787 professionals have used our research since 2012.