Comparison

FusionSIP vs ChatLLM

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

Head to head
About

FusionSIP

Features
Read full description

FusionSIP: The Mobile SIP Client for FusionPBX FusionSIP is the ideal mobile solution for users of the open-source FusionPBX phone system. Simple, flexible, and powerful - FusionSIP keeps you perfectly connected on the go. Highlights: Easy Setup: Configure via QR code or manual SIP data entry. Seamless Integration: Direct connection to FusionPBX via the EDNT Softphone API, which provides all necessary data. Cutting-Edge Technology: Supports push notifications, IPv4, and IPv6. Powerful Features: Extension selection Hold, call switching, and call forwarding (unattended & attended) Conference calling BLF and status display for colleagues Public and private phonebooks (local and server-based) Server-based call history, notes, and scheduling (private & public) Integrated chat (requires XMPP server) FusionPBX voicemail management Full fax support (send & receive) Manage call forwarding and block lists Customizable codecs, volume control, and Bluetooth support User-friendly design with Light & Dark Mode For Businesses & Offices: FusionSIP is also available in a desktop version, including interfaces to ERP and CRM systems. On request, the app can be custom-branded and tailored to your needs. Who is FusionSIP for? FusionSIP is specifically designed for businesses that use FusionPBX, providing a reliable, user-friendly solution for efficient communication—anytime, anywhere. For Resellers: Upon request, the softphone can be branded, customized, and discounted. Download now and experience the full power of FusionPBX in the palm of your hand! Important Note: The FusionSIP soft client can only be used in combination with the EDNT SoftPhone API and FusionPBX. For a generic softphone solution, EDNT offers the Smart-SIP-Phone, which works as a SIP client immediately with any PBX or phone system.

About

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.

Highlights
  • 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
Features
Read full description

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

FusionSIP4 screens
ChatLLM4 screens

Verdict

The call

The clearest difference is in-app purchases: FusionSIP at none against ChatLLM's 3. FusionSIP also leads on iOS requirement (15.0 vs 17.0). ChatLLM's advantage is update cadence (every 4 days vs every 3 weeks). On price, ads and device support 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. ChatLLM sells 3 in-app purchases, starting at $9.99 per month. FusionSIP asks for nothing beyond the download.

UpkeepUpdate frequency

FusionSIP ships an update every 3 weeks, ChatLLM every 4 days. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
FusionSIP versus ChatLLM: the parameters behind the verdict, then further details
ParameterFusionSIPChatLLM
PriceFreeFree
Rating—4.9 (3.8K ratings) — better
Positive reviews—63.6% of reviews
Number of ratings—3.8K — better
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Subscription
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size11 MB112 MB
Age rating4+12+
DeveloperEDNT GmbHAbacus.AI

Bugs and requests

FusionSIP

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
Show 6 more
  • 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

None

FusionSIP

No in-app purchases

3 purchases

ChatLLM

Subscriptions3
  • Monthly Subscription$9.991 Month
  • Monthly subscription$9.991 Month
  • Pro Tier$19.991 Month

Questions

Is FusionSIP free?
FusionSIP is free to download, with no in-app purchases.
Is ChatLLM free?
ChatLLM is free to download, with in-app purchases available.
Do FusionSIP or ChatLLM have ads?
Neither FusionSIP nor ChatLLM shows ads.
Which is updated more often, FusionSIP or ChatLLM?
FusionSIP ships an update every 3 weeks, and ChatLLM every 4 days. Most recently, FusionSIP was updated on October 19, 2026 and ChatLLM on October 25, 2026.

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