Comparison

Fill In Studio vs BookAPT

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Fill In Studio

This app helps fitness studios and gyms fill empty class spots by connecting them with local clients seeking last-minute bookings. Easily post classes, create discounted deals, and manage all your bookings and payments securely.

Highlights
  • Studio dashboard for bookings and revenue
  • Post classes with details and photos
  • Create flash deals for last-minute openings
  • Manage class bookings and attendee lists
  • Secure Stripe Connect payouts
  • Instant notifications for new bookings
Features
Read full description

Fill In Studio is the companion app for fitness studios and gyms on the Fill In platform. Post classes, manage bookings, create flash deals, and grow your business — all from your iPhone. THE FILL IN OPPORTUNITY Every empty spot in your class is lost revenue. Fill In connects you with a community of fitness enthusiasts actively looking for last-minute classes near them. When you have openings, they're ready to book. HOW IT WORKS 1. POST your classes with details, pricing, and photos 2. SET your "Fill In" price (discounted rate for last-minute bookings) 3. CREATE flash deals when you want to fill spots fast 4. WATCH bookings roll in from nearby fitness seekers Fill In handles everything — payments, notifications, and customer communication. You focus on delivering great workouts. KEY FEATURES • STUDIO DASHBOARD — See your bookings, revenue, and active deals at a glance • POST CLASSES — Create classes with descriptions, photos, pricing, and capacity • FLASH DEALS — Offer time-sensitive discounts to fill empty spots quickly • CLASS TEMPLATES — Save your recurring class types for one-tap posting • MANAGE BOOKINGS — View who's coming to each class • EDIT & CANCEL — Update class details or cancel with automatic attendee notifications • ANALYTICS — Track performance, popular classes, and earnings over time • STRIPE CONNECT — Secure, automated payouts directly to your bank account INSTANT NOTIFICATIONS When you post a class or flash deal, Fill In automatically notifies nearby fitness enthusiasts who have enabled alerts. Your class gets visibility exactly when it matters. STRIPE CONNECT PAYOUTS Fill In uses Stripe Connect for secure, reliable payments. After completing a quick onboarding process, you'll receive payouts directly to your bank account. Track your earnings in the app and on the Stripe dashboard. WHO IS FILL IN STUDIO FOR? • BOUTIQUE FITNESS STUDIOS looking to fill last-minute openings • YOGA & PILATES STUDIOS wanting to reach new clients • GYMS offering specialty classes • INDEPENDENT INSTRUCTORS who teach at multiple locations • FITNESS ENTREPRENEURS growing their client base SUPPORTED CLASS TYPES - Yoga (all styles) - Pilates (mat & reformer) - HIIT & Circuit Training - Barre - Indoor Cycling / Spin - CrossFit - Strength Training - Dance & Cardio - Boxing & Martial Arts - And more! SIMPLE PRICING Fill In takes a small platform fee only when you get paid. No monthly fees. No setup costs. No risk. GET STARTED 1. Download Fill In Studio 2. Create your studio profile 3. Complete Stripe Connect onboarding 4. Post your first class It takes just minutes to set up. Start reaching new clients today! Need help? Contact our studio support team: studios@getfillin.com Learn more at: getfillin.com/studios

About

BookAPT

Features
Read full description

BookAPT is a revolutionary appointment booking platform that combines AI-powered conversational booking with lightning-fast 30-second scheduling. BookAPT makes booking effortless, intuitive, and efficient for both customers and businesses. AI-POWERED BOOKING - THE FUTURE OF SCHEDULING
Chat naturally with our AI assistant to find and book services. Simply say "I need a haircut this weekend" and let AI find the best options, show availability, and complete your booking in seconds. No more endless searching or phone calls. 30-SECOND BOOKING - WHEN YOU NEED IT FAST
Prefer the traditional way? Our streamlined visual booking lets you find services, select times, and confirm appointments in just 30 seconds. Perfect for busy professionals who want speed and efficiency. 23 OR MORE INDUSTRIES - ONE APP FOR EVERYTHING
BookAPT supports hair salons, beauty and wellness, medical and dental, automotive, fitness, home services, halal and specialty food, retail, professional consulting, and many more industries. REAL-TIME COMMUNICATION
Stay connected with businesses through our built-in real-time chat. Ask questions, get updates, and communicate seamlessly without leaving the app. FLEXIBLE PAYMENT OPTIONS
Pay your way with Apple Pay, Google Pay, Venmo, Pay Later options, QR code payments, and secure credit card processing. SMART CALENDAR INTEGRATION
Sync with Apple Calendar, Google Calendar, and Outlook. Never double-book or miss an appointment again. FOR BUSINESS OWNERS - GROW YOUR BUSINESS
BookAPT provides powerful tools including: • Real-time appointment management • Professional service and product catalogs • Smart invoice generation via Email, SMS, and Chat • Team and worker scheduling • Customer communication hub • Analytics and reporting • Multi-location support • Custom service requests • Recurring appointment automation • Voice command support KEY FEATURES FOR CUSTOMERS • AI chat booking by conversation • 30-second visual booking • Real-time availability • Instant confirmations • Appointment reminders • Service reviews and ratings • Favorite businesses • Cross-platform access on iOS and Web • Secure payments • Appointment history FOR BUSINESSES • 5-minute setup • 30-day free trial • Professional dashboard • Smart scheduling • AI-powered customer matching • Payment processing • Team management • Custom services • Product catalog • Analytics dashboard SECURE AND RELIABLE
Your data is protected with enterprise-grade security. All transactions are encrypted, and your information is securely stored in the cloud. CROSS-PLATFORM ACCESS
Access BookAPT from anywhere using our iOS app and web platform. PERFECT FOR • Busy professionals • Service businesses of all sizes • Customers who value convenience • Businesses looking to grow GROWING COMMUNITY
Join thousands of users and businesses who trust BookAPT for their appointment needs. Download BookAPT today and book smarter, not harder. Version 1.0
Requires iOS 16.0 or later

Screenshots

Fill In Studio4 screens
BookAPT4 screens

Verdict

The call

The clearest difference is in-app purchases: Fill In Studio at none against BookAPT's 6. Fill In Studio also leads on update cadence (every 2 weeks vs every 5 weeks) and device support (3 vs 1). On price and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. BookAPT sells 6 in-app purchases, starting at $29.99 per month. Fill In Studio asks for nothing beyond the download.

UpkeepUpdate frequency

Fill In Studio ships an update every 2 weeks, BookAPT every 5 weeks. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 5 level
Fill In Studio versus BookAPT: the parameters behind the verdict, then further details
ParameterFill In StudioBookAPT
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better16.0
Further details — not scored
Size61 MB149 MB
Age rating4+4+
DeveloperFill In LLCORYN INC

In-app purchases

None

Fill In Studio

No in-app purchases

6 purchases

BookAPT

Subscriptions3
  • Starter Plan - USD $29.99$29.991 Month
  • Professional - USD $79.99$79.991 Month
  • Business Plan - USD $149.99$149.991 Month
One-time3
  • 20 Appt Credits -USD $4.99$19.99
  • 40 Appt Credits - USD $9.99$31.99
  • 100 Appt Credits - USD $24.99$59.99

Questions

Is Fill In Studio free?
Fill In Studio is free to download, with no in-app purchases.
Is BookAPT free?
BookAPT is free to download, with in-app purchases available.
Do Fill In Studio or BookAPT have ads?
Neither Fill In Studio nor BookAPT shows ads.
Which is updated more often, Fill In Studio or BookAPT?
Fill In Studio ships an update every 2 weeks, and BookAPT every 5 weeks. Most recently, Fill In Studio was updated on October 10, 2026 and BookAPT on October 25, 2026.

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