# Machine Learning Engineer Exam vs Learn PostgreSQL Offline

The clearest difference is price: Machine Learning Engineer Exam at Free against Learn PostgreSQL Offline's $1.99. Learn PostgreSQL Offline's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 16.0). On update cadence, ads and device support there is nothing between them.

Machine Learning Engineer Exam is free to download; Learn PostgreSQL Offline costs $1.99 up front. Machine Learning Engineer Exam sells 1 one-off in-app purchase. Learn PostgreSQL Offline asks for nothing beyond the download.

Machine Learning Engineer Exam ships an update every 28 months, Learn PostgreSQL Offline every 41 months. The most recent releases landed on November 7, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Machine Learning Engineer Exam | Learn PostgreSQL Offline |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 28 months** | Every 41 months |
| Monetization | Paid | — |
| Size | 1 MB | 39 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DjamgaTech Corp](https://appshunter.io/developer/969000181) | [Muhammad Mubeen](https://appshunter.io/developer/1553722821) |

## What reviewers say

### Machine Learning Engineer Exam

[App page](https://appshunter.io/ios/app/machine-learning-engineer-exam/id1611598797)

Prepare for the GCP Professional Machine Learning Engineer certification with comprehensive quizzes and practice exams. Master ML concepts on GCP, from data preparation to model deployment and operations. Includes cheat sheets and interview questions.

**Highlights:** Hundreds of quizzes and practice exams, Covers ML on GCP topics, Machine Learning Basics and Advanced, Cheat sheets and interview questions, Latest ML news, Scorecard and countdown timer

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Question Bank | $9.99 | one-time |


### Learn PostgreSQL Offline

[App page](https://appshunter.io/ios/app/learn-postgresql-offline/id1624444188)

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

**In-app purchases:** none


## Frequently asked questions

### Is Machine Learning Engineer Exam free?

Machine Learning Engineer Exam is free to download, with in-app purchases available.

### Is Learn PostgreSQL Offline free?

Learn PostgreSQL Offline costs $1.99, with no in-app purchases.

### Do Machine Learning Engineer Exam or Learn PostgreSQL Offline have ads?

Neither Machine Learning Engineer Exam nor Learn PostgreSQL Offline shows ads.

### Which is updated more often, Machine Learning Engineer Exam or Learn PostgreSQL Offline?

Machine Learning Engineer Exam ships an update every 28 months, and Learn PostgreSQL Offline every 41 months. Most recently, Machine Learning Engineer Exam was updated on November 7, 2026 and Learn PostgreSQL Offline on November 11, 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.*