# 6 vs ShellShock Trainer

The clearest difference is in-app purchases: ShellShock Trainer at none against 6's 10. ShellShock Trainer also leads on ads (none vs shown) and update cadence (every 4 days vs every 2 weeks). 6's advantage is ratings volume (31 vs 1). On price, rating, review sentiment and device support there is nothing between them.

Both are free to download. 6 sells 6 in-app purchases, starting at $4.99 per month. ShellShock Trainer asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for 6 against 5.0 for ShellShock Trainer. That said, the two scores are not equally well evidenced: 6 has 31 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

6 ships an update every 2 weeks, ShellShock Trainer every 4 days. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | 6 | ShellShock Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (31 ratings)](https://appshunter.io/ios/app/6-pack-macros/id1607832473/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/shellshock-trainer/id6807605710/reviews)** |
| Number of ratings | **31** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 76 MB | 8 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [macro Calculator](https://appshunter.io/developer/1598352282) | [Atlas Nutricles LLC](https://appshunter.io/developer/6807605712) |

## What reviewers say

### 6

[App page](https://appshunter.io/ios/app/6-pack-macros/id1607832473)

This app guides users to achieve fitness goals by tracking nutrition and providing customized workout plans. It offers a food database and custom meal creation for precise dietary logging. It's a comprehensive tool for weight loss, muscle gain, or general health improvement.

**Highlights:** Nutrition tracking, Macronutrient intake logging, Customizable workout routines, Extensive food database, Custom meal and recipe creation, Progress monitoring

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Black Friday 50% Off | $4.99 | per month |
| MONTHLY | $9.99 | per month |
| MONTHLY | $9.99 | per month |
| YEARLY | $59.99 | per year |
| YEARLY | $59.99 | per year |
| LIFE TIME | $99.99 | one-time |


### ShellShock Trainer

[App page](https://appshunter.io/ios/app/shellshock-trainer/id6807605710)

Log your gym sessions, track personal records, and visualize which muscles you've worked. Connect with a supportive community of lifters, share your progress, and discover new training routines.

**Highlights:** Log workouts and sessions, Track personal records (PRs), Visualize muscle engagement, Connect with a lifting community, Save training history, Follow other lifters

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

**In-app purchases:** none


## Frequently asked questions

### Is 6 free?

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

### Is ShellShock Trainer free?

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

### Which has better reviews, 6 or ShellShock Trainer?

ShellShock Trainer is rated higher. 6 averages 4.9 out of 5 from 31 ratings, while ShellShock Trainer averages 5.0 from 1 ratings.

### Do 6 or ShellShock Trainer have ads?

6 shows ads; ShellShock Trainer does not.

### Which is updated more often, 6 or ShellShock Trainer?

6 ships an update every 2 weeks, and ShellShock Trainer every 4 days. Most recently, 6 was updated on October 24, 2026 and ShellShock Trainer on October 26, 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.*