Underlist vs ChatLLM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Underlist
Create and manage lists for groceries, projects, goals, and more with this intuitive app. It leverages Apple technologies like Widgets and Shortcuts for seamless integration and offers robust security features like passcode locks.
- Create lists for various purposes
- Utilizes Widgets and Shortcuts
- iCloud synchronization
- Share Extension for content import
- Export and import lists
- Passcode and biometric security
- Multi-Window support on iPad
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Underlist is a simple list app made to be useful, where you can create lists for various purposes such as groceries, trips, project management, personal goals, to-dos, and more. It is designed to be intuitive and takes advantage of the latest Apple technologies such as Widgets, Shortcuts automation, iCloud synchronization, and much more. Main features: - Share Extension: Add content directly from other apps without the need to switch applications. For files, it will add the content in the record attachment, for rich content such as map place-marks it will parse and retrieve the information found and add it to the record notes. - Underlist files: You can export a list, share it through AirDrop, and the receiver can import it directly on his device. And if your list has a passcode it will be required to be inputted as well. - Multi-Window on iPad: To be productive you can have multiple windows with different lists and you can drag and drop content from one side to another. Quick, easy, and intuitive. And of course, you can have Underlist in split view or floating view with other applications. - Security: You can set a passcode or biometric lock for your lists to open, edit, and share. Resuming on Underlist you will find: - Widgets (Small, Medium, and Large) with list selection. - iCloud sync across devices; - Shortcuts automation; - List files to export and import; - Drag and Drop; - Context Menus; - Notes with rich content detection; - Multi-Window support on iPad; - Dark and Light theme; - Alternative app icons; - Notification reminders; - Repeatable records; - Lists security; - Global search; - List Folders; - Separators on Lists; - Manual order; - Quick record creation; - Records attachments; - Attachment preview; On Underlist you will find two optional subscriptions available, one monthly and another yearly. These subscriptions unlock the ability to optionally disable the Third-Party Analytics and are present mostly to allow users to support the application. ALL APP FEATURES ARE AVAILABLE WITHOUT THE NEED TO SUBSCRIBE TO A PLAN. Privacy Policy: https://underlist.app/privacy-policy.html Terms of Use: https://underlist.app/terms.html
ChatLLM
Access multiple advanced AI models for chat, content creation, and task automation. Features include an autonomous AI agent, real-time meeting transcription, and voice interaction. Generate images, videos, and code, or analyze documents with this comprehensive AI assistant.
- Autonomous AI agent for complex tasks
- Real-time meeting transcription and insights
- Multi-model AI chat (GPT-5, Opus, Gemini)
- Image and video generation
- Voice chat with multiple AI voices
- AI-powered web research
- Code execution and debugging
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ChatLLM – The Most Powerful AI Assistant on Mobile Chat, Create, Listen & Automate with State-of-the-Art AI ChatLLM brings together the world's best AI models — GPT-6.1, Fable 5.1, Opus 5.5, Gemini, DeepSeek, and more — into one app. Chat naturally, generate images and videos, transcribe meetings live, or let the AI Agent autonomously handle complex tasks for you. AGENT — AUTONOMOUS AI AGENT Give the Agent a task and watch it work. It uses multiple AI models, browses the web, writes code, and connects to your tools to complete complex multi-step tasks autonomously. • Research, analyze, and compile reports • Build and deploy websites and apps • Connect to Gmail, Google Drive, Jira, Slack, and more • Track progress with real-time task updates AI LISTENER — REAL-TIME MEETING INTELLIGENCE Record any conversation and get live AI-powered transcription and insights. • Real-time transcription in 100+ languages • AI-generated suggestions while you listen • Automatic session summaries • Custom analysis templates (Key Points, Technical Analysis, or your own) • Chat with AI about any past session • Background recording — switch apps without losing audio ADVANCED AI CHAT Natural, human-like conversations powered by 15+ language models. Ask questions, brainstorm, debug code, or tackle any topic. VOICE CHAT Full voice conversations with AI. Choose from multiple voices, switch between automatic and manual recording modes, and go hands-free. IMAGE & VIDEO GENERATION Turn text into visuals with Nano Banana Pro, FLUX, GPT Image 2.5, Seedream 5, Ideogram, Recraft, and more. Generate videos with Seedance 2.5, Veo 3.1, Kling AI, and Sora 2. DEEP RESEARCH AI-powered web research with source citations. Get comprehensive, multi-source answers to complex questions with real-time activity tracking. CODE EXECUTION Run code directly in chat. Debug, generate snippets, and test ideas with a built-in terminal and playground. DOCUMENT ANALYSIS Upload files for instant summaries, Q&A, and analysis. Supports PDFs, images with OCR, and more. PERSONALIZATION • Custom instructions for tailored responses • Memory system that learns your preferences • Projects to organize conversations and files • Thinking mode for complex reasoning 15+ AI MODELS IN ONE APP GPT-6.1 · Claude Fable 5.1 · Claude Opus 5.5 · Gemini · DeepSeek · Kimi · Grok · Qwen · Perplexity · and more Why Choose ChatLLM? • All the best AI models, one subscription • Multi-modal: Text, Voice, Images, Video, Documents • AI Agent for autonomous task completion • AI Listener for meeting intelligence • SOC-2 and HIPAA compliant — your data stays private This app requires a subscription. Plans start at $9.99/month. Terms of service & privacy policy: https://abacus.ai/terms https://abacus.ai/privacy
Screenshots
Verdict
The clearest difference is rating: ChatLLM at 4.9 against Underlist's 4.3. ChatLLM also leads on review sentiment (64% vs 33%) and update cadence (every 4 days vs monthly). Underlist's advantage is monetization model (free vs subscription) and device support (4 vs 2). On price, ads and in-app purchases 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. Underlist sells 5 in-app purchases, starting at $0.99 per month and ChatLLM sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
ChatLLM holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: ChatLLM has 3.8K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 33% of Underlist's written reviews are positive against 64% of ChatLLM's.
Underlist ships an update monthly, ChatLLM every 4 days. The most recent releases landed on September 25, 2026 and October 23, 2026 respectively.
| Parameter | Underlist | ChatLLM |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (7 ratings) | 4.9 (3.8K ratings) — better |
| Positive reviews | 33.3% of reviews | 63.6% of reviews — better |
| Number of ratings | 7 | 3.8K — better |
| Update frequency | Monthly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 10 MB | 112 MB |
| Age rating | 4+ | 12+ |
| Developer | Filipe Martins | Abacus.AI |
Customer experience
Underlist
ChatLLM
Bugs and requests
Underlist
Not enough reviews yet to summarise bugs or requests.
ChatLLM
Reported bugs
5 issues- Voice chat is not transcribing
- Chats disappearing after re-entering the thread
- App freezing or becoming laggy when generating responses on mobile
- Voice chat not working
- App crashing on mobile
Requested features
11 requests- Add transcript to the headphone mode
- Rename a thread
- Add execution time and other metrics for each request
- Indicate which LLM served the request when using routeLLM
- Add an iPad version
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- Add ability to delete chats on mobile
- Add voice chat and talk back feature
- Improve copy/paste functionality
- Allow selecting text
- Add ability to set default LLM
- Improve font size customization
In-app purchases
Underlist
- Monthly Supporter$0.991 Month
- Yearly Supporter$4.991 Year
- Coffe-Sized Tip$0.99
- Snack-Sized Tip$2.99
- Lunch-Sized Tip$5.99
ChatLLM
- Monthly Subscription$9.991 Month
- Monthly subscription$9.991 Month
- Pro Tier$19.991 Month









