# Bonsai Studio by PrismML — Generate images locally > Local AI image generation app for iPhone, no internet needed. (iPhone/iPad app by Prism ML.) - Source: https://appshunter.io/ios/app/bonsai-studio-by-prismml/id6767042620 (this page in markdown: same URL + `.md`) - Developer: [Prism ML](https://appshunter.io/developer/1896355493) - Category: Photo & Video, Graphics & Design - Price: Free - Rating: 5.00/5 from 7 App Store ratings · 4 written reviews indexed - Age rating: 12+ - Requires: iOS 17.0 · 100 MB - Languages: American English - Released: 2026-05-26 - Data updated: 2026-09-03 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/bonsai-studio-by-prismml/id6767042620/reviews.md ## What is Bonsai Studio by PrismML? Bonsai Studio brings high-quality image generation to iPhone, running locally on your device instead of relying on cloud servers. No internet connection is required, and your prompts and generated images stay on your device. Powered by PrismML’s ternary Bonsai Image model, Bonsai Studio makes advanced diffusion image generation practical on mobile hardware. On iPhone 17 Pro, it can generate a 512×512 image in roughly 12 seconds, making local creative workflows fast enough for everyday use. KEY FEATURES • On-device image generation • Multiple resolutions and aspect ratios • Save generated images directly to your Photo Library • Built-in prompt moderation • Open weights under the Apache 2.0 license REQUIREMENTS Bonsai Studio uses on-device compute and memory. For the best experience, iPhone 15 Pro or newer with 8 GB or more unified memory is recommended. ABOUT PRISMML PrismML builds ultra-dense intelligence designed to push the limits of speed, memory efficiency, and on-device AI. ## Key features - On-device image generation - Offline functionality - Multiple resolutions and aspect ratios - Save images to Photo Library - Built-in prompt moderation - Open weights license ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/bonsai-studio-by-prismml/id6767042620/reviews.md ### 5/5 — Import and auto convert and add bonsai llm 1bit *2026-06-12* Hey this app is nice but please add an import auto convert other models so like if I want to add zimage it will automatically convert the model to 1bit and please add bonsai llm prompt enhancer feature we could add are own custom system prompt and make it where it save memory by unloading the llm out of ram for people that have 3 to 6 gb ram. This feature would be cool😎 ### 1/5 — Taugt nichts *2026-06-01* Hört nicht richtig zu, und hat heftige Zensur-Filter. Nicht zu gebrauchen ### 5/5 — Really awesome technology *2026-05-29* People might compare some of the image generations, two frontier model models, which really isn’t fair, what is amazing is completely local image generation on an iPhone that is actually pretty good and pretty much as fast as frontier models if you consider the fact that they have to go to somebody else’s server get rate limited get checked if the corporation is even going to allow you to generate that image. I’m getting most images generated within 10 seconds, can’t wait to see where this technology leads for local AI. ### 5/5 — Impressive *2026-05-29* It’s crazy to be moderated when it’s running on my own device😂 ## Frequently asked questions about Bonsai Studio by PrismML ### What devices does Bonsai Studio support? Bonsai Studio is designed for iPhone. For the best experience, an iPhone 15 Pro or newer with 8 GB or more unified memory is recommended. ### Does Bonsai Studio require an internet connection? No, Bonsai Studio generates images locally on your device, meaning no internet connection is required. Your prompts and generated images stay private on your device. ### How fast can Bonsai Studio generate images? On an iPhone 15 Pro, Bonsai Studio can generate a 512x512 image in approximately 12 seconds, making local creative workflows fast enough for daily use. ### What is the age rating for Bonsai Studio? Bonsai Studio has an age rating of 12+. ### Does Bonsai Studio have ads? No, Bonsai Studio is ad-free. ### Can I save my generated images? Yes, Bonsai Studio allows you to save generated images directly to your iPhone's Photo Library. ### What is the license for the AI model used? Bonsai Studio uses the PrismML's ternary Bonsai Image model, and its weights are open under the Apache 2.0 license. ### How often is Bonsai Studio updated? The latest version, 0.4.0, was released on May 28, 2026, indicating recent development activity. ## Version history (last 2 releases) ### 0.4.0 — 2026-05-28 Smarter default resolution on older iPhones, system theme by default, "Reuse" -> "Remix", fixes for switching back from another app, various stability improvements ### 0.3.1 — 2026-05-26 No release notes. ## Related topics [bonsai studio](https://appshunter.io/ios/topics/bonsai-studio) · [bonsai studio by prismml](https://appshunter.io/ios/topics/bonsai-studio-by-prismml) · [ellipsis visuals](https://appshunter.io/ios/topics/ellipsis-visuals) · [succulentica](https://appshunter.io/ios/topics/succulentica) · [prism photo](https://appshunter.io/ios/topics/prism-photo) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*