# Nautilus Plus vs Zone SB

The clearest difference is update cadence: Zone SB at weekly against Nautilus Plus's every 5 weeks. Zone SB also leads on iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Nautilus Plus ships an update every 5 weeks, Zone SB weekly. The most recent releases landed on September 17, 2026 and December 13, 2025 respectively.

## The numbers

| Metric | Nautilus Plus | Zone SB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (7 ratings)](https://appshunter.io/ios/app/nautilus-plus/id1321627621/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 25.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 62 MB | 193 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Nautilus Plus](https://appshunter.io/developer/1321627620) | [Studio Bizz Inc](https://appshunter.io/developer/1759976636) |

## What reviewers say

### Nautilus Plus

[App page](https://appshunter.io/ios/app/nautilus-plus/id1321627621)

Manage your gym membership, track workouts, and access personalized fitness and nutrition plans. View schedules, book appointments, and sync data from various fitness trackers. Stay connected with trainers and nutritionists through integrated messaging.

**Highlights:** Virtual membership card, Workout tracking and program access, Sync data from fitness trackers, Nutrition plan and tools, Group exercise class schedules, Appointment booking, Integrated messaging with trainers

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use (sometimes)
- 👍 Good gym experience
- 👍 Professional service
- 👍 Useful for booking classes
- 👍 Useful for checking Boomerang points

**What reviewers complain about**

- 🐛 App frequently crashes
- 🐛 Login issues
- 🐛 Server errors
- 🐛 Slow performance
- 🐛 Unreliable functionality

**Reported bugs**

- Reservations don't work
- Messaging doesn't work
- Gym crowd status not showing
- App constantly logs out
- Password reset emails not sent

**Requested features**

- Add Apple Watch app for tracking workouts
- Bring back average weekly visits on homepage
- Allow users to choose preferred branches
- Enable in-app membership renewal
- Allow users to customize home screen buttons


### Zone SB

[App page](https://appshunter.io/ios/app/zone-sb/id6587573263)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nautilus Plus free?

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

### Is Zone SB free?

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

### Do Nautilus Plus or Zone SB have ads?

Neither Nautilus Plus nor Zone SB shows ads.

### Which is updated more often, Nautilus Plus or Zone SB?

Nautilus Plus ships an update every 5 weeks, and Zone SB weekly. Most recently, Nautilus Plus was updated on September 17, 2026 and Zone SB on December 13, 2025.

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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.*