.app vs .co
A detailed comparison of .app and .co domain extensions — pricing, features, and best use cases.
Our Verdict
.app is the more affordable option, while .app is trending upward. Choose .app for mobile apps, or .co for startups and scaleups.
| Feature | .app | .co |
|---|---|---|
| Registration Price | $14.99/yr | $29.99/yr |
| Year Introduced | 2018 | 2010 |
| HTTPS Required | Yes | No |
| Est. Registrations | 1M+ | 2M+ |
| Growth Trend | Rising | Stable |
| Registry | Google Registry | .CO Internet S.A.S. |
| Name Availability | High | High |
.app Advantages & Disadvantages
Advantages
- HTTPS required (built-in security)
- Clear application association
- Google-backed registry
- Good name availability
Disadvantages
- Must configure SSL (no plain HTTP)
- Less recognized than .com or .io
- Google registry — single company dependency
.co Advantages & Disadvantages
Advantages
- Short and memorable (only 2 characters)
- Strong global recognition
- Supported by all major registrars
- No registration restrictions
Disadvantages
- Users may accidentally type .com
- Higher renewal prices than .com
- Less established trust than .com
.app Best For
- Mobile apps
- Web applications
- SaaS products
- PWAs
- Software companies
.co Best For
- Startups and scaleups
- Modern tech companies
- E-commerce brands
- URL shortening
- Global commercial businesses
Frequently Asked Questions
Why does .app require HTTPS?
.app is included in the HSTS preload list, which means browsers enforce HTTPS for all .app domains. This was a deliberate security decision by Google Registry to make the entire TLD more secure by default.
Is .app good for mobile app landing pages?
Yes, .app is ideal for mobile app landing pages. The extension immediately signals to visitors that they're visiting a software product's website, and the required HTTPS ensures a secure experience.
Is .co a good domain for a startup?
.co is a popular choice for startups, especially when the .com equivalent is taken. It's short, globally recognized, and carries a professional image. Many funded startups use .co as their primary domain.
What is the difference between .co and .com?
.com is the original commercial TLD and remains the most trusted. .co is a newer alternative that looks similar and works well for startups and modern brands. The main risk with .co is users accidentally typing .com.
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