K2Sonnet vs Oscilla
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
K2Sonnet
This next-generation smart assistant helps streamline your daily tasks. It offers intelligent features designed to enhance productivity and organization. Experience a smarter way to manage your workflow.
- Smart assistance
- Task management
- Workflow enhancement
- Intelligent features
- Organization tools
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K2Sonnet, Your Next-Generation Smart Assistant.
Oscilla
This app provides private AI capabilities directly on your iPhone and Mac. Interact with AI models that run locally, allowing for offline use, personalized workspaces, and understanding of documents and images. It offers features like voice conversations and web search for enhanced productivity.
- Local AI models for offline use
- Voice conversations with AI
- Built-in memory for context
- Project organization for related chats
- Personalized AI assistants
- Web search for current information
- File and image understanding
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Private AI. Built Around You. Oscilla brings local AI to your iPhone and Mac. Write, brainstorm, understand documents, and talk things through with AI models that run on your own device. Choose your models, make them your own, and build a workspace around the way you think. - Local AI — Download models and chat offline. - Voice conversations — Speak naturally and hear responses with Voice Mode. - Built-in memory — Keep useful context for more personalized conversations. - Projects — Bring related chats, instructions, and reference files together. - Personal Assistants — Create focused helpers with their own instructions and knowledge. - Web Search — Find current information with sources. - File and image understanding — Ask questions about documents, screenshots, and images with supported models. - OS Bridge — Chat from your iPhone while your Mac runs the model, including models your iPhone couldn’t run on its own. Your AI. On your devices. Under your control. Web Search requires internet access and setup. Features vary by device and model.
Screenshots
Verdict
The clearest difference is rating: Oscilla at 4.7 against K2Sonnet's 3.0. Oscilla also leads on update cadence (weekly vs every 7 months) and ratings volume (32 vs 2). K2Sonnet's advantage is iOS requirement (17.6 vs 26.0). On price, ads, in-app purchases and monetization model 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.
Oscilla holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Oscilla has 32 ratings behind it against 2, so its average is the more settled of the two.
K2Sonnet ships an update every 7 months, Oscilla weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | K2Sonnet | Oscilla |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 4.7 (32 ratings) — better |
| Positive reviews | — | 92.9% of reviews |
| Number of ratings | 2 | 32 — better |
| Update frequency | Every 7 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 2 MB | 92 MB |
| Age rating | 17+ | 12+ |
| Developer | Shanghai Jiyue Information Technology Co., Ltd. | Matthew David Fusco |
In-app purchases
K2Sonnet
No in-app purchases
Oscilla
No in-app purchases
