Comparison

LumenAI Agents vs Retrace

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

Head to head
About

LumenAI Agents

Features
Read full description

Lumen Chat puts the world's most powerful AI models in your pocket — all in one beautifully designed app. Chat with multiple AI providers, snap photos for instant identification, search the web, build websites, and analyze documents — all powered by cutting-edge artificial intelligence. ● 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. ● AI COUNCIL — 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. ● CAMERA VISION Point your camera at anything — a plant, a math equation, a product label, a painting, food, or text — and get instant AI-powered identification, analysis, and detailed information. ● 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. ● BUILT-IN WEB SEARCH Search the web and receive AI-summarized answers without leaving the app. No additional accounts required. ● 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. ● DOCUMENT & PDF ANALYSIS Import PDFs, text files, and documents for instant AI-powered analysis, summaries, key point extraction, and question-and-answer sessions. ● CONVERSATION MANAGEMENT Organize, pin, search, and export your conversations. Share AI responses as formatted text with friends, colleagues, or on social media. ● PREMIUM DESIGN Crafted with a stunning dark-mode interface, smooth animations, and native iOS components. Feels right at home on your iPhone. ● 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 — SUBSCRIPTION INFORMATION — 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

Retrace

This minimal notes app automatically snapshots your writing every few seconds, allowing you to easily revisit and restore any past version. It offers a focused editing experience with inline checklists and image attachments, syncing seamlessly via iCloud.

Highlights
  • Automatic silent snapshots
  • Scrub through past versions
  • Restore previous states
  • Focused editor with no menus
  • Inline checklists
  • Image attachments
  • iCloud sync
  • Export to Markdown, PDF, Image
Features
Read full description

Retrace is a minimal notes app with a single promise: nothing you write is ever lost. Write freely. After every two seconds of quiet, Rewind quietly snapshots your note. You can scrub through those snapshots like a film reel — see what your idea looked like an hour ago, last night, a week ago. — TIME MACHINE FOR YOUR NOTES — · Automatic, silent snapshots. No thinking required. · Drag the filmstrip to revisit any past version. · Tap "restore" — the current state is saved as another version. So you can never lose anything by going back. · Mark important moments manually with one tap. — A FOCUSED EDITOR — · No menus. No formatting bar. Just space to think. · Inline checklists — tap the checkbox to mark done. · Attach images. · Auto-save after 2 seconds of idle. — TAKE IT WITH YOU — · iCloud sync across all your devices, end to end through your own Apple account. · Home Screen widget for quick capture and today's notes. · Siri shortcuts: "open my last note," "quick capture." · One-tap export to Markdown, PDF, or a beautiful long-image Time Album. — YOURS, ALWAYS — · No accounts. No tracking. No ads. · Your data lives only on your device and in your own iCloud. · Available in 8 languages: English, 简体中文, 繁體中文, 日本語, 한국어, Español, Français, Deutsch. · Made by one person, for one person. Retrace is built around a single feeling: the relief of knowing nothing you write will be lost. Once you trust that, you start writing more bravely. Try it for a week.

Screenshots

LumenAI Agents4 screens
Retrace4 screens

Verdict

The call

The clearest difference is in-app purchases: Retrace at none against LumenAI Agents's 2. 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. LumenAI Agents sells 2 in-app purchases, starting at $19.99 per month. Retrace asks for nothing beyond the download.

Scorecard1 real difference · 6 level
LumenAI Agents versus Retrace: the parameters behind the verdict, then further details
ParameterLumenAI AgentsRetrace
PriceFreeFree
Positive reviews—100.0% of reviews
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhoneiPhone
Requires iOS17.6 — better18.0
Further details — not scored
Size4 MB2 MB
Age rating4+4+
DeveloperNICHOLAS ERWIN HEITKAMP炳银 伍

In-app purchases

2 purchases

LumenAI Agents

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

Retrace

No in-app purchases

Questions

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

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