IBM i
Reviews
Star rating
Rank in Operating System
Pros and cons
Pros
- Reliability
- Security/Safety
- Security Features
- Stability
- Powerful Features
- Ease of Use
Cons
- Skill Requirements
- Outdated Technology
- High Cost
- Unfriendly Interface
- Usage Difficulty
- Poor UI/UX
Traffic & LLM citations
Source: G2 review data
Winning from
Losing to
Key stats
Adoption by company size
| Segment | Share of reviews |
|---|---|
| Small Business | 20.6% |
| Mid-Market | 45.6% |
| Enterprise | 33.8% |
Quarterly history
| Quarter | Reviews | Star rating |
|---|---|---|
| 2024 Q4 | 1 | 5.0 |
| 2025 Q2 | 3 | 4.8 |
| 2025 Q3 | 2 | 4.3 |
| 2025 Q4 | 6 | 4.2 |
| 2026 Q1 | 5 | 4.8 |
| 2026 Q2 | 10 | 4.2 |
| 2026 Q3 | 5 | 4.3 |
Satisfaction ratings
What reviewers say
Robust Enterprise Platform with Some Complexity
“I appreciate IBM i for its reliability, security, and powerful enterprise technology. It provides me with reliable and secure tools that help manage complex technology and data efficiently. I also like their great customer service.”
IBM i: An integrated, secure and highly reliable platform for mission-critical workloads
“IBM i provides an exceptionally integrated, secure and reliable platform for running mission-critical business workloads. The operating system, database, security, middleware and management capabilities work together as a single environment, which simplifies operations and reduce”
Rock-Solid IBM i Architecture, But Hard to Find Experienced RPG Talent
“Integrated architecture, Reliability and uptime and Security model”