Yemma 4 vs OpenAgents Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Yemma 4
This AI chat app runs entirely on your iPhone, processing prompts, images, and responses locally. Enjoy private conversations, brainstorm ideas, and summarize notes offline after an initial model download. It requires specific hardware for full functionality.
- 100% on-device AI chat
- No sign-up or subscription required
- Offline functionality after model download
- Local conversation history
- Adjustable response style
- Image understanding
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Yemma 4 is a private AI chat app that runs entirely on your iPhone. It runs Google's Gemma 4 locally through a Swift-native MLX multimodal runtime, so your prompts, images, and responses stay on your device. There is no account to create, no cloud inference service in the middle of your conversations, and no telemetry pipeline watching what you do. Download the model once, then keep chatting on Wi-Fi, cellular, or in airplane mode. Ask questions, brainstorm ideas, rewrite text, summarize notes, describe photos, and have real back-and-forth conversations with image attachments, all processed on-device. Why Yemma 4 feels different: - 100% on-device AI chat - No sign-up, login, or subscription - Offline after the initial model download - Local conversation history you can delete any time - Adjustable response style and creativity controls - Image understanding through the same on-device model Hardware note: - Requires iPhone hardware with the A17 Pro chip or later - First model download is about 4.2 GB, so Wi-Fi and free storage are recommended
OpenAgents Mobile
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OpenAgents Mobile brings your team and your AI agents into a single shared workspace. Start a thread, bring in the agents you need, and let them do the work alongside you — researching, tracking orders, comparing quotes, drafting updates. Everything happens in the same conversation your team is already in. WHAT YOU CAN DO • One workspace for people and agents Talk to teammates and AI agents in the same threads. No switching apps, no copying context back and forth. • Assign work and follow through Hand a task to an agent or a teammate, then watch progress update in the thread. Results land where the discussion happened. • Organize by project Keep threads, files, and agents grouped by the project they belong to, so context stays where it belongs. • Scheduled routines Set an agent to run on a schedule — a morning check, a daily report, a recurring review — and get the results waiting for you. • Files in context Share documents and images in a thread and let agents work directly with them. • Built-in browser view Watch what an agent is browsing in real time, right inside the app. • Roles and permissions Control who can see what and which agents can act, with team roles built for real organizations. Sign in with email, Google, or Apple to reach your workspace from anywhere.
Screenshots
Verdict
The clearest difference is update cadence: Yemma 4 at daily against OpenAgents Mobile's every 3 weeks. OpenAgents Mobile's advantage is iOS requirement (15.0 vs 17.0). On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Yemma 4 ships an update daily, OpenAgents Mobile every 3 weeks. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.
| Parameter | Yemma 4 | OpenAgents Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Daily — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 28 MB | 34 MB |
| Age rating | 4+ | 17+ |
| Developer | AVMIL LABS LLC | ZHONGYUAN ZHU |
In-app purchases
Yemma 4
No in-app purchases
OpenAgents Mobile
No in-app purchases









