The Vault 164 vs Underground
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Vault 164
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Download The Vault 164 App today to plan and schedule all of our classes! From The Vault 164 mobile App you will be able to View class schedules Sign-up for classes Purchase intro offers and passes View ongoing promotions View The Vault 164's location information Optimise your time and maximise the convenience by downloading our App today!
Underground
Easily manage your fitness club experience from your mobile device. Book classes, access your membership details, and enter your club using QR codes. Stay updated with club information and class reminders.
- QR code club entry
- Class booking
- Membership management
- Club information access
- Friend invitations
- Attendance tracking
- Class reminders
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With the Underground Gym app interacting with your fitness club on your mobile device has never been easier. Manage everything from your class bookings to your membership details for a full club experience.Download the app to:- Enter your club using QR codes Book classes with your favorite club Get club details such as opening hours, location, etc. Invite friends to join your club Monitor club and class attendance history Preview your membership details Receive class reminders
Screenshots
Verdict
The clearest difference is ads: Underground at none against The Vault 164's shown. The Vault 164's advantage is update cadence (every 3 weeks vs every 2 months) and device support (3 vs 1). On price and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
The Vault 164 ships an update every 3 weeks, Underground every 2 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.
| Parameter | The Vault 164 | Underground |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 117 MB | 101 MB |
| Age rating | 4+ | 4+ |
| Developer | Qi dragon limited | Perfect Gym Solutions Sp. z o.o. |
In-app purchases
The Vault 164
No in-app purchases
Underground
No in-app purchases
Questions
Is The Vault 164 free?
Is Underground free?
Do The Vault 164 or Underground have ads?
Which is updated more often, The Vault 164 or Underground?
Other comparisons
