Comparison

LLMChat vs Sleek BYOK

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

Head to head
About

LLMChat

Features
Read full description

LLMChat brings your LLMAPI conversations into a focused iPhone workspace. • Chat with models supported by your subscription. • Attach images, PDFs and documents when supported by the selected model. • Organize conversations and reuse prompt templates. • Keep conversations on your device, with export and optional WebDAV backup. • Sign in with email, Google or Apple. Choose a Pro, Max or Ultra monthly subscription using Apple In-App Purchase, or sign in with an eligible existing LLMAPI subscription. No manual API key setup is needed on iOS. Prices and usage limits appear before purchase. Usage units are not a fixed number of messages; consumption varies with the model and input/output. Subscriptions automatically renew unless canceled at least 24 hours before the current period ends. Payment is charged to your Apple Account at confirmation. Manage or cancel in Apple Account settings. Deleting the app or your LLMAPI account does not cancel a subscription. Restore purchases using the same LLMAPI account used for purchase. AI responses can be inaccurate. Review important information and only share data you are permitted to send. Before sending, the app asks for permission to share chat content with LLMAPI and its model providers. Privacy: https://llmapi.pro/chat/privacy.html Terms: https://llmapi.pro/chat/terms.html Support: support@llmapi.pro

About

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.

Highlights
  • 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
Features
Read full description

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

LLMChat2 screens
Sleek BYOK4 screens

Verdict

The call

The clearest difference is in-app purchases: Sleek BYOK at none against LLMChat's 3. Sleek BYOK also leads on update cadence (every 2 days vs weekly). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. LLMChat sells 3 in-app purchases, starting at $7.99 per month. Sleek BYOK asks for nothing beyond the download.

UpkeepUpdate frequency

LLMChat ships an update weekly, Sleek BYOK every 2 days. Both last shipped on October 31, 2026.

Scorecard2 real differences · 7 level
LLMChat versus Sleek BYOK: the parameters behind the verdict, then further details
ParameterLLMChatSleek BYOK
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad — betteriPhone
Requires iOS16.4 — better17.0
Further details — not scored
Size41 MB8 MB
Age rating17+17+
Developer上海勋鸿文化传播有限公司REGGIE LEE SLABA

In-app purchases

3 purchases

LLMChat

Subscriptions3
  • LLMAPI Pro Monthly$7.991 Month
  • LLMAPI Max Monthly$39.991 Month
  • LLMAPI Ultra Monthly$149.991 Month
None

Sleek BYOK

No in-app purchases

Questions

Is LLMChat free?
LLMChat is free to download, with in-app purchases available.
Is Sleek BYOK free?
Sleek BYOK is free to download, with no in-app purchases.
Do LLMChat or Sleek BYOK have ads?
Neither LLMChat nor Sleek BYOK shows ads.
Which is updated more often, LLMChat or Sleek BYOK?
LLMChat ships an update weekly, and Sleek BYOK every 2 days. Most recently, LLMChat was updated on October 31, 2026 and Sleek BYOK on October 31, 2026.

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