# SubMastery vs Standardization Hub

The clearest difference is in-app purchases: SubMastery at none against Standardization Hub's 1. SubMastery also leads on iOS requirement (12.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Standardization Hub sells 1 one-off in-app purchase. SubMastery asks for nothing beyond the download.

## The numbers

| Metric | SubMastery | Standardization Hub |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 92.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | — |
| Monetization | Free | — |
| Size | 101 MB | 52 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SubMastery Edtech Private Limited](https://appshunter.io/developer/1545382568) | [Mohammad Hasan](https://appshunter.io/developer/1840610284) |

## What reviewers say

### SubMastery

[App page](https://appshunter.io/ios/app/submastery-community-learning/id1545382566)

This app provides engineers with online courses, live classes, and assignments to enhance their subject mastery and career growth. It aims to bridge the gap in corporate training by offering accessible, high-quality learning resources and mentorship.

**Highlights:** Intensive online courses, Live classes, Assignments with review, Quizzes and tests, Doubt clearing sessions, Video recordings available, Community support groups

**In-app purchases:** none


### Standardization Hub

[App page](https://appshunter.io/ios/app/standardization-hub/id6758397718)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Join Community Membership | $49.99 | one-time |


## Frequently asked questions

### Is SubMastery free?

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

### Is Standardization Hub free?

Standardization Hub is free to download, with in-app purchases available.

### Do SubMastery or Standardization Hub have ads?

Neither SubMastery nor Standardization Hub shows ads.

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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.*