Comparison

Klipper | OctoPrint vs Happy

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Klipper | OctoPrint

Control and monitor your 3D printer remotely with this app. It offers live webcam streaming, push notifications for print progress, and AI-powered failure detection to prevent print issues. Supports OctoPrint, Klipper, and other popular platforms.

Highlights
  • Remote printer control
  • Live webcam streaming
  • Push notifications
  • AI failure detection
  • OctoPrint & Klipper support
  • Secure sharing
Features
Read full description

Discover the Future of 3D Printing Control and Monitoring with Obico Unleash the true potential of your 3D printing journey with Obico—an innovative app that redefines how you connect with your OctoPrint or Klipper 3D printer. Experience hassle-free remote management, seamless control, and real-time monitoring, all without the need for complex VPN setups. Embrace a new era of creativity and convenience, as Obico empowers creators, makers, and enthusiasts alike. Why Choose Obico? Streamlined Remote Access & Control Initiate, pause, stop, or refine your prints, no matter where you are. Seamlessly control every aspect of your 3D printer's operation, from initiation to perfection. Immersive Webcam Streaming Immerse yourself in live webcam streaming of your prints' progress. Gain insights from close-ups to final layers, all directly from your mobile device. Stay Informed with Push Notifications Receive timely webcam snapshots and real-time progress updates. Stay connected without interrupting your workflow—directly on your iOS device's lock screen. AI Failure Detection for Unparalleled Security Obico's AI-powered system monitors your prints vigilantly. Detect potential issues and pause operations to prevent failures with confidence. Broad Compatibility Supports OctoPrint, Klipper, Mainsail, Fluidd, and Moonraker—unlocking limitless potential. Seamlessly access and harness the capabilities of these platforms, without intricate configurations. Open Source Community Collaboration Join a thriving community of 3D printing enthusiasts. Obico's open-source nature encourages exploration and self-hosting of the server. Sharing Creativity in Real Time Securely share live streams of your 3D printer with friends and peers. Invite collaboration and excitement as your creations come to life. Embark on a New Dimension of Possibilities Embrace innovation without complexity. Access and control your 3D printing realm with ease and confidence. Elevate Your 3D Printing Experience with Obico Evolve your creative process with the power of Obico. From novices to experts, Obico enhances your journey in the world of 3D printing. Seamless Integration, Unparalleled Control Navigate the 3D printing world without boundaries. Obico bridges the gap between technology and simplicity, revolutionizing your experience. Download Obico Today and Redefine Your 3D Printing Adventure Embrace the future of 3D printing with Obico's user-friendly interface. Access remote control, real-time monitoring, and more—elevate your creations today.

About

Happy

This app provides a secure mobile interface for AI coding assistants, allowing you to continue sessions and monitor progress from anywhere. It features end-to-end encryption and a zero-knowledge architecture for ultimate privacy. Seamlessly switch between desktop and mobile for uninterrupted AI coding.

Highlights
  • Seamless desktop and mobile session continuation
  • Push notifications for AI tasks
  • Offline access to conversation history
  • End-to-end encryption for code privacy
  • Real-time streaming of AI responses
  • Zero-knowledge architecture
Features
Read full description

Your coding agent shouldn't wait for you to get back to your desk. A task can run for an hour and then stop five minutes in to ask for permission or a decision. Happy lets you answer from your phone, and the same agent carries on in the same repository with the same tools and context. Happy is the mobile app for Claude Code and Codex. The agents keep running on your own computer, and your phone is how you start them, steer them and review their work. WHAT YOU CAN DO FROM YOUR PHONE • Start a new session or pick up one you began at your desk • Get notified when an agent needs input or finishes • Approve or deny permission requests, or let a session run in Auto mode • Choose the model and reasoning effort from the providers set up on your computer • Review changes: a file list, colored diffs, and the full set of changes on a branch • Attach a screenshot or photo to your prompt • Browse sessions in one list or grouped by project, with each checkout's chats as tabs • Open a side chat next to a session without losing your place • Drafts follow you between your phone and your computer HOW IT WORKS Happy runs on your computer, and this app connects to it. 1. Install Happy Desktop from happy.engineering, or if you prefer the terminal, run: npm install -g happy 2. Create an account in the app. You don't need an email address or a password. 3. Scan the QR code your computer shows to link it to your phone. Then start a session from either device. What you see on your phone is the same live session that's running on your computer. YOU WILL NEED • A computer running Happy Desktop or the Happy CLI • Access to the coding agents you want to use, such as a Claude or ChatGPT/Codex plan or API key. Happy uses your existing accounts. PRIVATE BY DESIGN Sessions are end-to-end encrypted. Your code, agent and encryption keys stay on your devices. Happy's servers only relay and store encrypted session data and can't read your prompts, responses or code. OPEN SOURCE The app, the CLI and the server are MIT-licensed and on GitHub. Read the code, run your own build or host your own server. ALSO ON DESKTOP Happy Desktop adds a harness that works across providers and lets you switch models in the middle of a task. The sessions it starts show up on your phone too. Happy is an independent project. It is not affiliated with or endorsed by Anthropic or OpenAI. Claude and Claude Code are trademarks of Anthropic. Codex and ChatGPT are trademarks of OpenAI. Privacy Policy: https://happy.engineering/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Klipper | OctoPrint4 screens
Happy4 screens

Verdict

The call

The clearest difference is update cadence: Happy at weekly against Klipper | OctoPrint's every 5 weeks. Klipper | OctoPrint's advantage is review sentiment (83% vs 72%). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Klipper | OctoPrint sells 3 in-app purchases, starting at $49.99 per month and Happy sells 1 in-app purchase, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Klipper | OctoPrint against 4.9 for Happy. Both are backed by a comparable volume of ratings — 1.1K and 1K respectively. Written reviews are what separate them: 83% of Klipper | OctoPrint's written reviews are positive against 72% of Happy's.

UpkeepUpdate frequency

Klipper | OctoPrint ships an update every 5 weeks, Happy weekly. The most recent releases landed on October 18, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 9 level
Klipper | OctoPrint versus Happy: the parameters behind the verdict, then further details
ParameterKlipper | OctoPrintHappy
PriceFreeFree
Rating4.9 (1.1K ratings)4.9 (1K ratings)
Positive reviews82.5% of reviews — better71.6% of reviews
Number of ratings1.1K — better1K
Update frequencyEvery 5 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#187#80 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size64 MB98 MB
Age rating4+4+
DeveloperTSDBulka, LLC

Customer experience

Klipper | OctoPrint

All ratings1,108 ratings
Positive97.5%
Neutral1.4%
Negative1.2%
Written reviews120 reviews
Positive82.5%
Neutral6.7%
Negative10.8%

Happy

All ratings1,024 ratings
Positive96.7%
Neutral1.0%
Negative2.3%
Written reviews67 reviews
Positive71.6%
Neutral10.4%
Negative17.9%

Bugs and requests

Klipper | OctoPrint

Reported bugs

3 issues
  • Camera not working with self-hosted Obico instance
  • Inconsistent behavior with print pause/cancel
  • Subscription hours not carrying over properly

Requested features

4 requests
  • Landscape mode support for iPad
  • More customization options for slicer integration
  • Ability to upload custom STL files
  • Improved print failure detection accuracy

Happy

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Klipper | OctoPrint

Subscriptions3
  • Up to 2 printers$49.991 Month
  • Up to 5 printers$99.991 Month
  • UNLIMITED printers$199.991 Month
1 purchases

Happy

Subscriptions1
  • Plus Plus Monthly$19.991 Month

Questions

Is Klipper | OctoPrint free?
Klipper | OctoPrint is free to download, with in-app purchases available.
Is Happy free?
Happy is free to download, with in-app purchases available.
Which has better reviews, Klipper | OctoPrint or Happy?
Klipper | OctoPrint and Happy are both rated 4.9 out of 5 on the App Store, from 1.1K and 1K ratings respectively.
Do Klipper | OctoPrint or Happy have ads?
Neither Klipper | OctoPrint nor Happy shows ads.
Which is updated more often, Klipper | OctoPrint or Happy?
Klipper | OctoPrint ships an update every 5 weeks, and Happy weekly. Most recently, Klipper | OctoPrint was updated on October 18, 2026 and Happy on October 16, 2026.
Which is more popular, Klipper | OctoPrint or Happy?
Klipper | OctoPrint currently peaks at #187 in the App Store charts, and Happy at #80. Chart position reflects recent download velocity rather than total install base.

Other comparisons