Daimond AI vs Sleek BYOK
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Daimond AI
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Always wanted an AI like those in the movies? An AI assistant with actual personality who's also useful - and one whose look you can design yourself? Daimond AI lets you create your perfect AI companion. Customize personality, voice and name. Generate a custom illustrated character built from your companion's personality, or pick one of 10 animated companions. Then talk through ideas, search the web, check your schedule, or get a second opinion - by text or voice, online or offline. PERSONALITY + PRACTICAL TOOLS Tired of robotic, one-size-fits-all AI? Love character apps but wish they could help with actual tasks? Daimond offers both: Personality + Practical Tools. Name Your AI Pick a name that fits their personality. Shape Your Character Adjust personality traits with intuitive sliders - then generate a matching illustrated character with Apple Intelligence. Choose a Voice Multiple natural voices make conversation feel real, not robotic. MEET YOUR COMPANION Generate your own illustrated character with Apple Intelligence, created from your companion's personality traits - or pick from 10 built-in animated characters. Your Companion appears in chat and speaks the words. Add matching Thinking and Greeting expressions so your character reacts while Daimond replies and greets you each morning. Character generation uses Apple's Image Playground and requires Apple Intelligence on a supported device. The 10 built-in animated companions remain available on other devices. LOCAL AI-FULLY PRIVATE, WORKS OFFLINE Prefer to keep your AI on-device? Switch your provider to Local and Daimond runs a language model right on your iPhone or iPad. * No API key. No account. No internet required. * Conversations stay on your iPhone or iPad. * Built-in voice output works offline too. * Perfect for travel, flights, or anywhere privacy matters. Local AI is available on iPhone Air, iPhone 17 Pro, iPhone 17 Pro Max, and supported M-series iPads. Other devices keep full access to cloud providers. USE DAIMOND FOR REAL TASKS Search, Research & Images Get answers with personality. Point your camera at something and Daimond can read and discuss it. Calendar & Reminders Review what's ahead and keep your day organized. Subscribers to the Pro tier can create new calendar events and reminders for you. On Your Home Screen Widgets and Shortcuts put Daimond within easy reach, while proactive notifications help Pro users stay ahead of the day. Daimond picks up facts about you as you chat. You're in control and can delete memories anytime. START WITH DAIMOND Enjoy text and voice conversations, every supported AI provider, personality settings, web search, reading calendar events and reminders, and up to 5 stored memories. Local AI has no API key or provider usage fees on supported hardware. Cloud providers - including OpenAI, Anthropic, Groq, and Google - use your own account and API key and bill you separately. CHOOSE PRO FOR MORE Daimond AI Pro adds weather, creating calendar events and reminders, proactive notifications, and up to 25 stored memories for $4.99 USD per month. YOUR AI, YOUR DATA, YOUR CONTROL Daimond AI has no account system. API keys and conversations are stored locally on your device, and AI requests go directly from your device to the provider you select. We don't have access to your conversations. Daimond AI Pro is an optional auto-renewing monthly subscription. Payment is charged to your Apple Account at confirmation. It renews automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel in your Apple Account settings. Restore Purchases is available in the app. Third-party model, audio, and search providers are not affiliated with The Red Building Group. Privacy Policy: https://daimondai.com/privacy.html Terms of Service: https://daimondai.com/terms.html
Sleek BYOK
Access a wide range of AI models, including chat, image, video, voice, and music generation, all within a single, private iOS application. It offers extensive customization options and a distraction-free interface, prioritizing user privacy and direct interaction with AI services.
- Access hundreds of AI models
- Generate images, video, music, and voice
- Hands-free voice interaction
- Customizable system prompts and parameters
- Organize context with memories and folders
- Private by design, no backend servers
- Direct integration with OpenRouter API
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Sleek is a native iOS client for OpenRouter — bring your own key and get every major AI model in one clean, fast, beautifully minimal app. No Sleek account. No middleman servers. Your OpenRouter key stays on your device, and every request goes straight from your iPhone to the model. You pay OpenRouter's raw per-token rates for AI usage — no markup from us, ever. One app. Every modality. • Chat with hundreds of models — Claude, GPT, Gemini, Llama, and more — and switch between them in a tap. • Generate images with the latest image models, right in the conversation. • Generate video from a prompt and save it straight to Photos. • Talk hands-free with live push-to-talk voice — speak, get a spoken reply back. • Dictate into any chat with universal on-device audio capture. • Make music and download the track. Built to feel high-end. A dark, distraction-free interface with smooth streaming, clean markdown, and thoughtful micro-interactions throughout. It looks and feels like a flagship app — because it is one. Make it yours. • Presets — save reusable system prompts and parameters for different jobs. • Per-modality prompts — steer image style, voice delivery, music genre, and more independently. • Memories & folders — keep context organized and let the app pull in what's relevant. • Model explorer — browse full stats, pricing, and context windows for every model, and set defaults per task. • Fine control — temperature, max tokens, provider routing, and more when you want it; sensible defaults when you don't. Private by design. Sleek has no backend of its own. There's no analytics pipeline, no Sleek account, and no server that ever sees your conversations or your key. Everything lives on your device. What you need to get started: Sleek runs on your own OpenRouter API key (free to create at openrouter.ai). Two ways in: • Connect OpenRouter — sign in once and Sleek provisions a key automatically. No copy-pasting. • Paste a key — already have an OpenRouter API key? Add it in Settings, no account needed. Minimal on the outside. Every model on the inside. That's Sleek.
Screenshots
Verdict
The clearest difference is in-app purchases: Sleek BYOK at none against Daimond AI's 1. Sleek BYOK also leads on update cadence (every 2 days vs every 2 months). On price, ads, device support and iOS requirement 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. Daimond AI sells 1 in-app purchase, starting at $4.99 per month. Sleek BYOK asks for nothing beyond the download.
Daimond AI ships an update every 2 months, Sleek BYOK every 2 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.
| Parameter | Daimond AI | Sleek BYOK |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 8 MB |
| Age rating | 17+ | 17+ |
| Developer | The Red Building Group LLC | REGGIE LEE SLABA |
In-app purchases
Daimond AI
- Daimond AI7 Days trial$4.991 Month
Sleek BYOK
No in-app purchases









