Fill In Studio vs Opslyflow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Opslyflow
Manage clients, jobs, invoicing, and payments for your trade business. This app offers features like scheduling, estimates, and online payments without extra costs. Track revenue and business performance in real time.
- Client and job management
- Estimate and invoice creation
- Online payment processing
- Team scheduling and assignment
- Real-time revenue dashboard
- Mobile and web access
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Run your trade business without the enterprise price tag. OpslyFlow gives HVAC techs, plumbers, electricians, and contractors everything they need to manage clients, jobs, invoicing, and payments — without charging extra for the features that actually matter. Sign up for your free trial at opslyflow.com, then log in here to manage your business from anywhere. Most field service apps lock scheduling, estimates, or online payments behind their highest-priced plans. OpslyFlow includes them all from day one. Clients & Jobs Keep your full client list, contact history, and property details in one place. Create work orders, assign them to your team, and track progress from the office or the field. Estimates & Invoicing Build professional estimates on-site and send them for approval. When the job's done, convert to an invoice in a tap. Clients can view and pay online — you get paid faster. Scheduling See your whole team's calendar at a glance. Drag and drop to assign jobs, manage availability, and keep your crew moving. Online Payments Accept credit cards and bank transfers through secure Stripe-powered payments. No chasing checks, no waiting around. Revenue Dashboard See how your business is performing in real time. Track revenue, outstanding invoices, and payment trends so you're never guessing. Built for Small Teams Whether you're a one-person operation or running a crew, OpslyFlow is designed for businesses that don't need — or want to pay for — bloated enterprise software. Simple pricing, straightforward features, and no surprises. Get started at opslyflow.com — your 14-day free trial includes full access on web and mobile.
Screenshots
Verdict
The clearest difference is update cadence: Fill In Studio at every 2 weeks against Opslyflow's every 6 weeks. On price, rating, ratings volume 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Fill In Studio against 5.0 for Opslyflow. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Fill In Studio ships an update every 2 weeks, Opslyflow every 6 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Fill In Studio | Opslyflow |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 61 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Fill In LLC | Joshua Griffin |
In-app purchases
Fill In Studio
No in-app purchases
Opslyflow
No in-app purchases








