Drybar vs TRAPP Diffuser
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Drybar
Book and manage professional blowout appointments at your favorite salon. Discover exclusive app-only promotions, join membership programs, and find style inspiration for your next visit. Rebook services and locations with ease.
- Book blowout appointments
- Manage appointments
- Exclusive app promotions
- Barfly Membership management
- Find salon locations
- Style inspiration
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At Drybar® shops, our philosophy is simple. Focus on one thing and be the best at it. For us, that’s blowouts. With that purpose in mind, we are focused on giving each and every client the premier blowout experience while providing professional quality products and tools to better help clients achieve and maintain the perfect blowout at home. Easily book a blowout appointment for you and all your friends. View, edit, or cancel your upcoming appointments on your personal home screen and seamlessly rebook your favorite service & location with just a few taps. You can find a Drybar location while on the go and become a Barfly with our Signature or Premium Memberships to ensure your hair is perfect on your most important dates throughout the month. 4 Reasons you'll love our new Mobile Booking App. 1. Get access to promotions and offers sent only to App users. 2. Book all your blowout appointments easily & frequently. 3. Join & manage your monthly Barfly Membership. 4. Find style inspiration for your next appointment.
TRAPP Diffuser
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Remote control: control home appliances from anywhere
Screenshots
Verdict
The clearest difference is update cadence: Drybar at monthly against TRAPP Diffuser's every 12 months. TRAPP Diffuser's advantage is iOS requirement (11.0 vs 14.4). 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.
Drybar ships an update monthly, TRAPP Diffuser every 12 months. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.
| Parameter | Drybar | TRAPP Diffuser |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (33 ratings) — better | — |
| Positive reviews | 7.5% of reviews | — |
| Number of ratings | 33 — better | — |
| Update frequency | Monthly — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 14.4 | 11.0 — better |
| Further details — not scored | ||
| Size | 47 MB | 173 MB |
| Age rating | 4+ | 4+ |
| Developer | Drybar | Dongguan Yih-Teh Electric Products Co., Ltd. |
Bugs and requests
Drybar
Reported bugs
20 issues- Login credentials not recognized despite being correct
- App logs out user every time it's opened
- Password reset emails not being sent
- Server error messages during booking process
- Scrolling issues on date selection screens
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- Font rendering too large making content unreadable
- Location search returns incorrect/distant locations
- App crashes when entering zip code search
- Payment processing fails with server errors
- Appointment confirmation not syncing to salon systems
- Membership credits showing as zero when they exist
- Add-on requests not appearing at salon
- Appointments not displaying in user schedule
- App freezes on confirmation screen
- Unable to add payment methods despite limit errors
- Location detection fails on cellular networks
- Password validation inconsistent between app and website
- Account profile phone number validation errors
- Customer not found errors for existing accounts
- Automatic next screen progression inconsistent
Requested features
17 requests- Face ID or biometric authentication support
- Remember login credentials between sessions
- Show available times across multiple locations simultaneously
- Search appointments by date instead of location
- Save user preferences and settings permanently
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- Ability to select specific stylists
- Display location phone numbers in app
- Cancel and modify appointments within app
- Show membership credits and benefits clearly
- Integration with calendar apps
- Keyboard shortcut support for login fields
- Better error messaging and explanations
- View appointment history with stylist names
- Search by date range across nearby locations
- Saved favorite add-ons and services
- Automatic location detection accuracy improvement
- Show availability before answering all questions
TRAPP Diffuser
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Drybar
No in-app purchases
TRAPP Diffuser
No in-app purchases
Questions
Is Drybar free?
Is TRAPP Diffuser free?
Do Drybar or TRAPP Diffuser have ads?
Which is updated more often, Drybar or TRAPP Diffuser?
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