DocB vs OctaLab
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
DocB
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DocB is a native documentation app built for developers who work with APIs. Bring the DocC sources you use into one focused library. Search across them instantly, save important pages for later, and keep reference material close wherever you work. Whether you are looking up an endpoint signature, scanning a framework guide, or researching away from your desk, DocB helps you stop bouncing between browser tabs and start getting answers faster. DocB supports Apple Developer Documentation, custom DocC sites, and popular documentation sources, so you can create a reference library that matches your workflow. Key features: - Read DocC documentation in a native app with fast, distraction-free browsing - Add popular documentation sources or your own DocC website - Search across all connected sources and DocC content - Save bookmarks and bookmark collections for quick follow-up - Sync sources and bookmarks with CloudKit - Continue reading across Mac, iPad, and Vision Pro
OctaLab
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OctaLab is a visual app builder. Design, prototype, and preview app ideas for iPhone, iPad, and Apple Watch, directly on your device, no code required. Place SwiftUI components on a device canvas, wire up navigation between screens, define your data and actions, then run a live, interactive preview to feel how your app works. DESIGN VISUALLY ⢠Drag and drop from a library of SwiftUI components onto a device canvas ⢠Resize, position, and style each component with a property inspector ⢠Add real photos from your library to image components ⢠Build for iPhone, iPad, or Apple Watch, the canvas adapts to each CONNECT YOUR SCREENS ⢠Lay out screens on a visual flowchart canvas ⢠Connect them with navigation links: push, sheet, full screen, tab, and alert ⢠Mark an entry screen and see the whole flow at a glance DATA AND LOGIC ⢠Define data models with typed fields and custom enums ⢠Two-way bindings between components and live context variables ⢠Build reusable actions: change state, navigate, call APIs, and more ⢠Import OpenAPI specs to model real API endpoints PREVIEW INSTANTLY ⢠Run your prototype in a simulated device frame ⢠Tap through real interactions: buttons, fields, toggles, sliders ⢠Switch between iPhone, iPad, and Apple Watch as you go ⢠Light and dark mode ORGANIZE YOUR WORK ⢠Start blank or from a built-in template (Todo, Login, Dashboard, Chat, Social, Banking) ⢠Rename, duplicate, and manage all your projects in one place ⢠Projects are saved locally on your device OctaLab is built for designers, makers, students, and anyone who wants to shape an app idea quickly and see it run without writing a line of code.
Screenshots
Verdict
DocB and OctaLab are too close to call on the numbers: across 6 compared parameters ā price, update cadence, ads and in-app purchases among them ā neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
DocB ships an update every 3 days, OctaLab every 4 days. Both last shipped on September 10, 2026.
| Parameter | DocB | OctaLab |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days ā better | Every 4 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Mac, Vision Pro ā better | iPhone, iPad, Mac |
| Requires iOS | 18.0 | 18.0 |
| Further details ā not scored | ||
| Size | 19 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | MCRICH LLC | Novin dokht Elmi |
In-app purchases
DocB
No in-app purchases
OctaLab
No in-app purchases









