# Mobius iVibe vs PMI Official

The clearest difference is review sentiment: Mobius iVibe at 67% against PMI Official's 17%. Mobius iVibe also leads on iOS requirement (13 vs 16.0). PMI Official's advantage is rating (4.9 vs 3.7) and update cadence (every 6 weeks vs every 50 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PMI Official holds the better App Store score, 4.9 against 3.7. That said, the two scores are not equally well evidenced: PMI Official has 428 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 67% of Mobius iVibe's written reviews are positive against 17% of PMI Official's, so the app with the better star average is not the one people write more warmly about.

Mobius iVibe ships an update every 50 months, PMI Official every 6 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Mobius iVibe | PMI Official |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (7 ratings)](https://appshunter.io/ios/app/mobius-ivibe/id482836743/reviews) | **[4.9 (428 ratings)](https://appshunter.io/ios/app/pmi-official/id6744980359/reviews)** |
| Number of ratings | 7 | **428** |
| Positive reviews | **66.7% of reviews** | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 50 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 38 MB | 110 MB |
| Requires iOS | **13** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mobius Insitute](https://appshunter.io/developer/482836746) | [PROJECT MANAGEMENT INSTITUTE, INC](https://appshunter.io/developer/562906501) |

## What reviewers say

### Mobius iVibe

[App page](https://appshunter.io/ios/app/mobius-ivibe/id482836743)

This app helps identify machine fault conditions by analyzing spectrum symptoms and machine types. It offers explanations, sample spectra, and diagnostic guidance, functioning like a portable reference guide for troubleshooting. Users can navigate through symptoms, machine types, or fault types to find potential issues.

**Highlights:** Identify machine faults by spectrum symptoms, Browse by machine type to find likely faults, View sample spectral images, Detailed diagnostic information, Scroll through 80 spectral images, Drill down through symptom lists

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### PMI Official

[App page](https://appshunter.io/ios/app/pmi-official/id6744980359)

Manage your professional certification, track and report continuing education units, and access an AI-powered project coach. This app helps you maintain your credentials, find learning opportunities, and get expert guidance for project success.

**Highlights:** Professional certification maintenance, PDU tracking and reporting, AI-powered project coach (PMI Infinity™), Course search and filtering, Renewal reminders, Single PMI login

**In-app purchases:** none


## Frequently asked questions

### Is Mobius iVibe free?

Mobius iVibe is free to download, with no in-app purchases.

### Is PMI Official free?

PMI Official is free to download, with no in-app purchases.

### Which has better reviews, Mobius iVibe or PMI Official?

PMI Official is rated higher. Mobius iVibe averages 3.7 out of 5 from 7 ratings, while PMI Official averages 4.9 from 428 ratings.

### Do Mobius iVibe or PMI Official have ads?

Neither Mobius iVibe nor PMI Official shows ads.

### Which is updated more often, Mobius iVibe or PMI Official?

Mobius iVibe ships an update every 50 months, and PMI Official every 6 weeks. Most recently, Mobius iVibe was updated on October 23, 2026 and PMI Official on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*