Comparison

CoreAI Zoo vs Sastio

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

Head to head
About

CoreAI Zoo

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CoreAI Zoo puts the open-weight AI model zoo on your iPhone, iPad and Mac. Pick a model, download it once, and run it entirely on your device. No account, no server, and nothing you type, say or photograph ever leaves the device. CHAT Stream answers from open language models such as Qwen3, Gemma, LFM2.5, Granite and Mistral, from 0.6B to 30B+ parameters depending on your device's memory. Vision-language models (Qwen3-VL, MiniCPM-V, LFM2.5-VL) answer questions about your photos. VISION Ask questions about an image, read text with on-device OCR, and describe what the camera sees. AUDIO Transcribe speech with Whisper large-v3-turbo, Parakeet and Qwen3-ASR. Talk to an audio-understanding model, generate speech with Kokoro and VoxCPM, and try on-device music generation. CAMERA Live depth estimation, object detection (YOLOX, RF-DETR), action recognition and super-resolution on the camera feed. TOOLS Experimental models such as diffusion-based language models. BENCH Measure load time, tokens per second and memory for any chat model on your own hardware. HOW IT WORKS Every model runs through Core ML on Apple silicon. Weights are downloaded from the Hugging Face Hub on first use over HTTPS, then cached, so the app works offline afterwards. One model is resident at a time to stay within memory limits. New models arrive through a live catalog without an app update. GETTING STARTED Start with Qwen3-0.6B (454 MB) for the fastest first run. Larger models state the free space and memory they need; a recent iPhone Pro or an Apple silicon Mac runs the mid-size ones comfortably. Model weights follow their own licenses, listed on each model's Hugging Face page. The app itself is BSD-3-Clause and part of the open CoreAI model zoo. Report issues and request models at github.com/john-rocky/coreai-model-zoo.

About

Sastio

Connect with skilled developers to bring your app idea to life. Submit your project details, budget, and requirements to get matched with suitable professionals. Track progress and manage multiple app ideas easily.

Highlights
  • Submit and describe app ideas
  • Provide development budget estimates
  • Match with suitable developers
  • Schedule developer meetings
  • Track app idea progress
  • Organize multiple app ideas
Features
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Sastio makes it easier to turn an app idea into a real product. Whether you’re an individual with a new idea, a startup, or a company looking to build an application, Sastio helps connect you with developers who have the skills your project needs. Simply submit your app idea, describe what you want to build, provide your project details and budget, and Sastio will use that information to help match you with a suitable developer. With Sastio, you can: • Submit and describe your app idea • Provide your estimated monthly development budget • Get matched with developers based on your project requirements • Schedule a meeting with an interested developer • Track the progress of your submitted app ideas • Manage your contact and profile information • Keep multiple app ideas organized in one place Our developer network includes professionals with different backgrounds, specialties, and technical skill sets. This allows Sastio to connect projects with developers who are better suited for the type of application being created. From the first idea to your first development meeting, Sastio gives you a simple way to start bringing your app to life.

Screenshots

CoreAI Zoo4 screens
Sastio3 screens

Verdict

The call

The clearest difference is ads: CoreAI Zoo at none against Sastio's shown. Sastio's advantage is iOS requirement (15.0 vs 27.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 8 level
CoreAI Zoo versus Sastio: the parameters behind the verdict, then further details
ParameterCoreAI ZooSastio
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 4 days—
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS27.015.0 — better
Further details — not scored
Size13 MB18 MB
Age rating4+17+
DeveloperDaisuke MajimaWAVbot LLC

In-app purchases

None

CoreAI Zoo

No in-app purchases

None

Sastio

No in-app purchases

Questions

Is CoreAI Zoo free?
CoreAI Zoo is free to download, with no in-app purchases.
Is Sastio free?
Sastio is free to download, with no in-app purchases.
Do CoreAI Zoo or Sastio have ads?
Sastio shows ads; CoreAI Zoo does not.

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