Virtual Try-On Agencies vs SaaS Apps

A virtual try-on agency builds a custom experience for your brand, while a SaaS app gives you a ready-made try-on tool you switch on for a monthly fee. Agencies suit brands that need something unique, such as a campaign or an in-store installation, and SaaS apps suit stores that want try-on on product pages quickly and at a predictable cost.

Most fashion stores selling online start with a SaaS app, then bring in an agency only for special projects. To see what ready-made tools look like, browse our list of the best virtual try-on apps.

What does a try-on agency actually do?

An agency is a team you hire to design and build something for you. For try-on, that can mean:

• A branded AR experience for a launch or campaign.
• A try-on feature built into your own mobile app.
• An in-store mirror or kiosk.
• 3D models of your products made by hand.
• Integration with an unusual tech stack.

You usually pay a project fee for the build, then a separate fee for hosting, updates and support. The agency may use its own code, an AR platform or a third-party API underneath.

What does a SaaS try-on app do?

SaaS means software as a service. You sign up, connect your store and pay a monthly fee. The vendor hosts, runs and updates the tool.

For a fashion store, a SaaS try-on app usually adds a "Try it on" button to product pages. The shopper uploads a photo or uses their camera, and the app shows the product on them. Some apps also suggest a size.

Setup is closer to installing any store app than to running a project. You choose a plan, switch the button on and test it.

How do agencies and SaaS apps compare?

This table sums up the typical differences. Individual agencies and apps vary, so use it as a guide.

	Agency	SaaS app
Cost model	Project fee plus ongoing fees	Monthly plan, often with a free tier or trial
Time to launch	Weeks to months	Hours to days
Design control	Full	Limited to the app's settings
Product coverage	What the agency builds or models	Usually your whole catalog
Adding new products	Often needs agency work	Usually automatic or a toggle
Updates and fixes	Contract-dependent	Handled by the vendor
Who owns the code	Check the contract	The vendor
Best for	Campaigns, apps, stores, unique ideas	Product-page try-on and sizing

Where agencies shine

Agencies are strong when you need something no app offers. A luxury brand's flagship store mirror, a game-like campaign or a deep integration with an old in-house system all fit here.

Where SaaS shines

SaaS is strong for everyday selling. New products arrive every week, and a SaaS app can usually cover them without a new project. It also spreads cost evenly across the year.

What are the hidden costs of each?

Both routes have costs that don't show up in the first quote.

Agency hidden costs

• Maintenance: phones, browsers and operating systems change. Someone has to keep the try-on working.
• New products: if each product needs a 3D model or custom setup, every new season costs more.
• Hosting: the experience has to run somewhere, often on a separate contract.
• Handover: if you switch agencies, the new team may need to rebuild.

SaaS hidden costs

• Usage limits: plans include a set number of try-ons. Busy months may need a bigger plan or extra fees.
• Branding: lower plans may show the vendor's name.
• Fit with your design: you work within the app's layout and settings.
• Vendor risk: if the vendor changes prices or closes, you need a plan B.

For a closer look at how SaaS tiers change between free and paid, see our comparison of free and paid try-on apps.

How do you decide which route fits?

Answer these questions honestly. If most answers point one way, that's your starting point.

1. Is the goal a one-off campaign or everyday selling? Campaigns lean agency. Everyday selling leans SaaS.
2. How often does your catalog change? Frequent changes lean SaaS.
3. Do you have a developer or tech team? Without one, an agency build may be hard to maintain later.
4. Do you need it live this month? Tight deadlines lean SaaS.
5. Is your budget a fixed project sum or a monthly line? Project budgets suit agencies, monthly budgets suit SaaS.
6. Do you need full control of the design? If yes, an agency or an API built by your own team.

What about building it yourself with an API?

There's a middle path. Some try-on vendors offer an API, so your own developers can build the screens while the vendor runs the AI. You get more design control than an app, with less upkeep than a full custom build.

Our comparison of custom AR builds and off-the-shelf try-on looks at that tradeoff in more detail.

What does each route look like in practice?

Here's a worked example with two brands.

Brand A: a growing online clothing store

Brand A sells dresses and tops on Shopify and adds new styles every two weeks. It has no developer.

It installs a SaaS try-on app, adds its size chart and switches on try-on for its best sellers. Within a day, shoppers can try on dresses and get a size. When new styles arrive, they get try-on too, without extra work.

Brand B: a premium label opening a flagship store

Brand B wants a large in-store mirror where shoppers see full outfits, plus a branded campaign for its launch. It has a marketing budget for the project.

It hires an agency to design the mirror and campaign. For its website, it still uses a SaaS app on product pages, because the agency build doesn't cover everyday online sales.

Many brands end up like Brand B, using both: an agency for special projects and an app for the store.

How do marketplaces fit into this?

If you also sell on large marketplaces, their own try-on features are a third route. You don't pay for them directly, but you don't control them either. Our guide to Amazon try-on for sellers explains what to ask the platform.

For a plain-language primer on how try-on works before you talk to anyone, read what virtual try-on means for retailers.

What should you ask an agency before you sign?

If you do go the agency route, get clear answers to these questions:

• What exactly will be built, and on which devices and browsers?
• Who owns the code, 3D models and designs when the project ends?
• What does it cost to add a new product after launch?
• Who fixes it when a phone or browser update breaks something?
• What does hosting cost each month, and who holds the contract?
• Are you building from scratch or on top of a third-party tool?

What should you ask a SaaS vendor before you sign?

• How many try-ons does each plan include, and what happens at the limit?
• Can I test it free on my own products first?
• Does it include sizing, or only the visual try-on?
• What store data does it access?
• Where are shopper photos processed and stored?

Where does ZeDaq.ai fit?

ZeDaq.ai is a SaaS app with an API option. The shopper uploads one photo and sees your real garment on their body. A 30-second scan with one photo plus height suggests a size from your own size chart.

It installs as a Shopify app, as a script-tag widget on other platforms, or through a REST API for teams that want to build their own screens. It also includes live-camera eyewear try-on.

The Free plan is $0 with 3 try-ons, 3 measurements and 5 invoices a month. Paid plans are Micro $14, Starter $49, Growth $129 and Scale $299 a month, each with a 3-day free trial and no card required.

FAQs

Is an agency always more expensive than a SaaS app?

Not always over every period, but agencies usually charge a project fee up front plus ongoing costs. SaaS apps spread cost into a monthly plan.

Can I start with SaaS and move to an agency later?

Yes. Many brands launch with an app, learn how shoppers use try-on, then hire an agency for a specific project.

Can an agency use a SaaS tool underneath?

Yes. Some agencies build custom screens on top of a vendor's API. Ask any agency what it builds on, so you know who to call if something breaks.

Do I need a developer to use a SaaS try-on app?

Usually not. Most store apps install from the app store or with a script tag, and an API is only needed if you want to build your own experience.