CastleBird vs Alf by Spaceship
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CastleBird
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Generate your dream website faster than brewing your morning coffee. No learning curve, no coding, and no design skills needed. Do this with just a few taps on your mobile phone. CastleBird lets you manage your online business when you’re on the road, at home, and everything in between. All-in-one mobile app for small business owners - Get discovered online. Starting today. Our AI-powered mobile website builder will generate every section of your site in 30 seconds. Experience the power of AI and boost your online presence instantly. - Craft high-converting web pages with ease. Create a variety of pages, from stunning landing pages to engaging “About Me” sections. Our app helps you build pages that turn visitors into loyal customers. Make every page unique with easy customization. Stand out and connect with your audience. - Regenerate. Rewrite. Refine. Remove unwanted text with a simple swipe and regenerate entire text sections with fresh suggestions – all in a single tap. Refine your content effortlessly. Craft perfect messages in seconds. - Flaunt your business in style. Choose from preset color themes to match your brand's aesthetic. Keep your design simple and consistent. Enjoy a hassle-free customization experience. - Sprinkle digital imagery that brings your website to life. Spice up your website with photos and videos. Share your brand's story that captures your audience’s attention in a visually unforgettable way. Easily upload and manage media content. Create a dynamic and engaging online presence.
Alf by Spaceship
This AI assistant helps entrepreneurs launch their online businesses. It guides users through naming, domain acquisition, and product setup through conversational interactions. Explore tools and set up emails seamlessly.
- AI-powered business naming
- Domain name suggestions
- Email setup assistance
- Product listing guidance
- Conversational interface
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Alf is Spaceship’s AI assistant, helping you set your online business up, from finding a name and getting the best domain for it, towards helping you set up your products just by keeping the conversation going. Whether it's buying domains, setting up emails, or exploring our tools, Alf is there to make the process smooth and enjoyable!
Screenshots
Verdict
The clearest difference is update cadence: Alf by Spaceship at fortnightly against CastleBird's every 3 months. CastleBird's advantage is iOS requirement (15.0 vs 17.0). 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.
CastleBird ships an update every 3 months, Alf by Spaceship fortnightly. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.
| Parameter | CastleBird | Alf by Spaceship |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 93 MB | 119 MB |
| Age rating | 17+ | 4+ |
| Developer | CastleBird | Namecheap, Inc |
In-app purchases
CastleBird
No in-app purchases
Alf by Spaceship
No in-app purchases
Questions
Is CastleBird free?
Is Alf by Spaceship free?
Do CastleBird or Alf by Spaceship have ads?
Which is updated more often, CastleBird or Alf by Spaceship?
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