# Fourth vs Opus Training

The clearest difference is review sentiment: Opus Training at 90% against Fourth's 4%. Opus Training also leads on rating (4.9 vs 1.3) and ratings volume (18K vs 134). Fourth's advantage is monetization model (free vs paid) and iOS requirement (12.0 vs 16.4). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Opus Training holds the better App Store score, 4.9 against 1.3. That said, the two scores are not equally well evidenced: Opus Training has 18K ratings behind it against 134, so its average is the more settled of the two. Written reviews point the same way: 4% of Fourth's written reviews are positive against 90% of Opus Training's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Fourth | Opus Training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.3 (134 ratings)](https://appshunter.io/ios/app/fourth/id966542105/reviews) | **[4.9 (18K ratings)](https://appshunter.io/ios/app/opus-training/id1589513546/reviews)** |
| Number of ratings | 134 | **18K** |
| Positive reviews | 3.7% of reviews | **90.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free** | Paid |
| Size | 74 MB | 84 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fourth Limited](https://appshunter.io/developer/407534402) | [Opus Training, Inc.](https://appshunter.io/developer/1589513548) |

## What reviewers say

### Fourth

[App page](https://appshunter.io/ios/app/fourth/id966542105)

This app streamlines hospitality operations by centralizing workforce management, purchasing, and inventory. It enhances team collaboration, simplifies scheduling, and improves inventory accuracy for efficient business management.

**Highlights:** Workforce management, Purchase-to-pay, Inventory management, Shift scheduling, Holiday requests, Stock counting, Order management

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast app icon
- 👍 Works without issue

**What reviewers complain about**

- 🐛 Constantly crashes
- 🔒 Authentication issues
- 👎 Unreliable
- 👎 Difficult to use
- 🔍 Lacks functionality

**Reported bugs**

- Blank screens
- Login failures
- Scheduling issues
- Payslip access problems

**Requested features**

- Dark mode option
- Improved calendar integration
- Better employee communication tools


### Opus Training

[App page](https://appshunter.io/ios/app/opus-training/id1589513546)

This platform empowers businesses to train their frontline workers efficiently via mobile. It offers accessible, multimedia-rich interactive training and resources, with content auto-translated into over 100 languages. Managers can assign tasks, communicate, and track progress, while admins can easily build content and manage users.

**Highlights:** Mobile-first training for frontline workers, Multimedia-rich interactive learning, Auto-translation into 100+ languages, Manager tools for assignment and communication, Easy content builder for admins, Off-the-shelf course templates, Real-time reporting and analytics

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 💡 Helpful training courses
- 🚀 Efficient app performance
- 🙌 Excellent customer service

**What reviewers complain about**

- 🐛 Unclear instructions and recipes
- 🤔 Confusing question wording
- 🙄 Juvenile design elements

**Reported bugs**

- Incorrect answer flagging
- Compatibility issues with older devices

**Requested features**

- More detailed explanations for recipes and ingredients
- Web interface option for accessing content


## Frequently asked questions

### Is Fourth free?

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

### Is Opus Training free?

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

### Which has better reviews, Fourth or Opus Training?

Opus Training is rated higher. Fourth averages 1.3 out of 5 from 134 ratings, while Opus Training averages 4.9 from 18K ratings.

### Do Fourth or Opus Training have ads?

Neither Fourth nor Opus Training shows ads.

### Which is updated more often, Fourth or Opus Training?

Fourth ships an update every 3 weeks, and Opus Training every 3 weeks. Most recently, Fourth was updated on September 23, 2026 and Opus Training on September 24, 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.*