Comparison

LumenAI Agents vs BTS Chatter

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

Head to head
About

LumenAI Agents

Features
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Lumen Chat puts the world's most powerful AI models in your pocket โ€” all in one beautifully designed app. Chat with multiple AI providers, snap photos for instant identification, search the web, build websites, and analyze documents โ€” all powered by cutting-edge artificial intelligence. โ— MULTI-MODEL AI CHAT Unlike apps locked to a single AI, Lumen Chat connects you to multiple leading AI models from different providers. Switch between reasoning models, fast models, and multimodal models with a single tap to find the best answer for every question. โ— AI COUNCIL โ€” INDUSTRY FIRST Can't decide which AI to trust? Summon the AI Council. Your question is sent to multiple AI models simultaneously. Each model responds independently, then a synthesized "Council Verdict" combines the strongest insights into one superior answer. No other app offers this. โ— CAMERA VISION Point your camera at anything โ€” a plant, a math equation, a product label, a painting, food, or text โ€” and get instant AI-powered identification, analysis, and detailed information. โ— DEEP THINKING MODE Activate reasoning mode and watch the AI think step-by-step through complex problems including math, logic, coding challenges, and scientific questions. โ— BUILT-IN WEB SEARCH Search the web and receive AI-summarized answers without leaving the app. No additional accounts required. โ— AI WEBSITE BUILDER Describe any website in plain English and watch AI generate a complete site with HTML, CSS, and JavaScript. Preview it live right in the app, then copy or share the code. โ— DOCUMENT & PDF ANALYSIS Import PDFs, text files, and documents for instant AI-powered analysis, summaries, key point extraction, and question-and-answer sessions. โ— CONVERSATION MANAGEMENT Organize, pin, search, and export your conversations. Share AI responses as formatted text with friends, colleagues, or on social media. โ— PREMIUM DESIGN Crafted with a stunning dark-mode interface, smooth animations, and native iOS components. Feels right at home on your iPhone. โ— ADDITIONAL FEATURES - Siri Shortcuts integration for quick access - Home Screen widget for instant chat - Secure local data storage with Apple Keychain - Full markdown rendering with syntax-highlighted code blocks - Multiple conversation threads โ€” SUBSCRIPTION INFORMATION โ€” Lumen Chat offers a free tier with limited daily messages. For unlimited access and premium features, two subscription tiers are available: FLOW (Pro Tier): - Flow Monthly: $5.99 per month - Flow Annual: $49.99 per year ($4.17/month) - Includes: Unlimited messages, all standard AI models, document analysis, web search, and conversation export. APEX (Premium Tier): - Apex Monthly: $19.99 per month - Apex Annual: $149.99 per year ($12.50/month) - Includes: Everything in Flow plus AI Council, Deep Thinking mode, Camera Vision, Website Builder, priority model access, and all future premium features. All subscriptions include a FREE 3-DAY TRIAL. You will not be charged during the trial period. After the 3-day free trial ends, your payment method on file with your Apple ID will be automatically charged the subscription price listed above. Subscriptions automatically renew at the end of each billing period (monthly or annually) unless canceled at least 24 hours before the end of the current period. Your Apple ID account will be charged for renewal within 24 hours prior to the end of the current period at the rate of your selected plan. You can manage and cancel your subscriptions at any time by going to your Account Settings in the App Store after purchase. Any unused portion of a free trial period will be forfeited when you purchase a subscription. Privacy Policy: https://heitkampnick23-art.github.io/lumenai-legal/ Terms of Use: https://heitkampnick23-art.github.io/lumenai-legal/terms.html Support: https://heitkampnick23-art.github.io/lumenai-legal/support.html

About

BTS Chatter

Features
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Chatter - Your agents. Your tools. Your data. Chatter is the AI chat app we built for ourselves - because we wanted frontier-quality answers without handing our conversations to yet another data-hungry platform. Now it's yours too. Chatter runs on Ollama Cloud with zero data retention: your prompts and answers are processed, streamed back, and gone. Nothing stored server-side, nothing used for training. Just fast inference on powerful open models - and a native, lightweight app on iPhone, iPad, and Mac that stays out of your way. Private by design. No account, no sign-up, no login - enter your API key and start chatting. We collect nothing: no analytics, no tracking, no telemetry. Your chats, agents, and knowledge live on your devices and sync exclusively through your personal iCloud (Apple CloudKit), end-to-end within your own Apple ID. We couldn't read your data if we wanted to - and we don't want to. Build your own agents. Create assistants with their own personality, model, and toolset - a coding expert, a research companion, a home-automation operator. Each agent is exactly as capable (and as locked-down) as you decide. Give them tools with MCP. Connect any Model Context Protocol server - self-hosted on your LAN, over Tailscale, or anywhere else. Your agents can query your databases, control your smart home, or reach your internal APIs. Your infrastructure stays yours. Give them knowledge. Attach curated knowledge bases to any agent - import PDFs or Markdown, and your agent reads exactly the documents it needs, when it needs them. Watch them grow. Agents remember what matters: they keep their own notes about you and your projects across chats, and they can even write down reusable skills - procedures you teach them once and they follow forever. You stay in control: everything they learn is visible, editable, and deletable. Everywhere you are. One app for iOS and macOS, with your agents, chats, and knowledge synced privately through iCloud. No subscription. No middleman. No tracking. Chatter is a native client for your own Ollama Cloud account - bring your API key, and own your AI. **Requires an Ollama Cloud API key (ollama.com). Chatter connects directly to Ollama Cloud and to MCP servers you configure; we run no servers of our own.**

Screenshots

LumenAI Agents4 screens
BTS Chatter4 screens

Verdict

The call

The clearest difference is in-app purchases: BTS Chatter at none against LumenAI Agents's 2. BTS Chatter also leads on device support (4 vs 1). On price, ads and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. LumenAI Agents sells 2 in-app purchases, starting at $19.99 per month. BTS Chatter asks for nothing beyond the download.

Scorecard2 real differences ยท 4 level
LumenAI Agents versus BTS Chatter: the parameters behind the verdict, then further details
ParameterLumenAI AgentsBTS Chatter
PriceFreeFree
Update frequencyโ€”Monthly
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhoneiPhone, iPad, Mac, Apple Watch โ€” better
Requires iOS17.617.0 โ€” better
Further details โ€” not scored
Size4 MB17 MB
Age rating4+17+
DeveloperNICHOLAS ERWIN HEITKAMPFabian Ackle

In-app purchases

2 purchases

LumenAI Agents

Subscriptions2
  • Apex Monthly3 Days trial$19.991 Month
  • Apex Annual3 Days trial$149.991 Year
None

BTS Chatter

No in-app purchases

Questions

Is LumenAI Agents free?
LumenAI Agents is free to download, with in-app purchases available.
Is BTS Chatter free?
BTS Chatter is free to download, with no in-app purchases.
Do LumenAI Agents or BTS Chatter have ads?
Neither LumenAI Agents nor BTS Chatter shows ads.

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