Diamond Tanning vs Underground
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Diamond Tanning
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Download the Diamond Tanning App today to plan and schedule your appointments! From this mobile App you can view our services, book appointments, as well as view the studio’s location information. Optimise your time and maximise the convenience of booking treatments from your device! Download this 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 update cadence: Diamond Tanning at monthly against Underground's every 2 months. On price, ads, in-app purchases and device support 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.
Diamond Tanning ships an update monthly, Underground every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Diamond Tanning | Underground |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 193 MB | 101 MB |
| Age rating | 4+ | 4+ |
| Developer | Diamond Tanning | Perfect Gym Solutions Sp. z o.o. |
In-app purchases
Diamond Tanning
No in-app purchases
Underground
No in-app purchases
Questions
Is Diamond Tanning free?
Is Underground free?
Do Diamond Tanning or Underground have ads?
Which is updated more often, Diamond Tanning or Underground?
Other comparisons
