--- title: AS400 iSeries | IBMi Reviews meta\_title: 'AS400 iSeries | IBMi Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter reviews by the users' company size, role or industry to find out how AS400 iSeries | IBMi works for a business like yours. aggregate\_rating: rating\_value: 4.5 review\_count: 2 scale: '5' date\_modified: '2026-07-17' parent\_category: name: Development Services url: https://www.g2.com/categories/development-services --- # AS400 iSeries | IBMi Reviews & Provider Details IBM AS400 operating system was initially known as OS/400. IBM introduced this combination of the hardware and operating system comprised of many core functions, including an integrated database. It was introduced in 1988, and since then, it underwent several changes and was renamed as IBMi, iSeries. And now, it is known as IBM power systems. * * * Seller [integrative sytems](https://www.g2.com/sellers/integrative-sytems) Discussions [AS400 iSeries | IBMi Community](https://www.g2.com/products/as400-iseries-ibmi/discuss) Show More ## Top-Rated Alternatives [ ![Capital Numbers](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Capital Numbers") Capital Numbers 4.8/5(82) ](https://www.g2.com/products/capital-numbers/reviews) [ ![Trigma](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Trigma") Trigma 4.9/5(72) ](https://www.g2.com/products/trigma/reviews) [ ![TechWize](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "TechWize") TechWize 4.9/5(56) ](https://www.g2.com/products/techwize/reviews) [ View All Alternatives ](https://www.g2.com/products/as400-iseries-ibmi/competitors/alternatives) TT Tajai T. Bookkeeper Mid-Market (51-1000 emp.) 10/6/2025 "Life as an AS400 user" 4/5 What do you like best about AS400 iSeries | IBMi? The system is straightforward and effectively alerts users to any issues they may be creating before they finalize their data. Review collected by and hosted on G2.com. What do you dislike about AS400 iSeries | IBMi? At times, when using the system, it doesn't always provide clear information about what the problem is. Review collected by and hosted on G2.com. Recommendations to others considering AS400 iSeries | IBMi: This system demands patience and a great deal of attention to detail. Review collected by and hosted on G2.com. What problems is AS400 iSeries | IBMi solving and how is that benefiting you? AS400 provides all the necessary accounting backup for every sale. It serves as a recording system for your financial data, which is then translated into clientview, allowing your clients to review your monthly profits and losses. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Accounting](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Accounting") AA Verified User in Accounting Mid-Market (51-1000 emp.) 3/10/2026 "AS400 iSeries | IBMi - Reliability and stability" 5/5 What do you like best about AS400 iSeries | IBMi? It is easy to use, quick, and allows me to find information whenever I need it. Review collected by and hosted on G2.com. What do you dislike about AS400 iSeries | IBMi? So far, I haven't encountered any issues with the system at all. Review collected by and hosted on G2.com. What problems is AS400 iSeries | IBMi solving and how is that benefiting you? I use it every day at work. Review collected by and hosted on G2.com. 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