Comparison

Cluster AI vs Nebula AI

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

Head to head
About

Cluster AI

This AI-powered search engine provides direct, trustworthy answers with cited sources. Get clear, concise information backed by real-time web searches, without any advertisements or clutter.

Highlights
  • AI-powered answers with cited sources
  • Real-time web search
  • Save and organize chat history
  • Ad-free experience
  • Direct and concise responses
Features
Read full description

Cluster is an AI-powered search engine that gives you direct answers with sources you can trust. Ask anything and get clear, concise responses backed by real-time web search. No ads, no clutter—just the information you need. Features: • AI-powered answers with cited sources • Real-time web search • Save and organize your chat history Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://cluster.app/privacy Terms of Service: https://cluster.app/terms

About

Nebula AI

Automate tasks like email, coding, and scheduling with a team of specialized AI agents. Connect to your existing tools and receive actionable results, not just suggestions. This AI works around the clock to handle your workflows from a single chat interface.

Highlights
  • Automate email, code, data analysis, and scheduling
  • Connects to over 600 tools via OAuth
  • Unified chat interface for AI agents
  • Specialized AI agents perform actions
  • Customizable agents and recurring automations
  • Secure OAuth connections, no password storage
Features
Read full description

Nebula is your autonomous AI agent team that works around the clock. Deploy specialized AI agents that automate email, code execution, data analysis, scheduling, and complex workflows. Unlike basic AI chatbots that just talk, Nebula is a team of AI agents that takes action. Each agent connects to your real tools and services — Gmail, GitHub, Slack, Google Calendar, Google Sheets, Linear, Notion, and 600+ more. Tell Nebula what you need in plain language, and your AI team handles the rest. WHY NEBULA IS THE BEST AI AGENT PLATFORM FOR YOUR TEAM Most AI apps just chat. Nebula deploys a team of autonomous AI agents that actually do the work. Each agent connects to your real services, reads your data, executes tasks, and reports back — no copy-pasting between apps, no manual busywork. Whether you're a developer automating CI/CD pipelines, a founder managing a dozen tools, or a team that wants AI agents that actually get things done, Nebula is the AI workforce that never sleeps. YOUR AI AGENTS CAN: • Read and send emails, organize your inbox, and draft replies with email automation • Write, debug, and execute code in Python, TypeScript, and more • Analyze spreadsheets, CSVs, and databases, then generate charts and reports • Schedule meetings, manage calendars, and set reminders • Monitor GitHub repos, create issues, and review pull requests • Search the web, scrape pages, and compile research reports • Post to Slack, manage tasks in Linear, and update Notion docs • Run complex multi-step workflows across multiple apps • Set up automated triggers that run on a schedule or in response to events BUILD YOUR AI TEAM • Create custom AI agents scoped to your team's specific workflows • Set up recurring automations that run daily, weekly, or on events • Works across all your tools from one unified chat interface • Agents learn your preferences and get better over time • Share agents with your team so everyone works faster HOW IT WORKS 1. Tell Nebula what you need in plain language 2. Nebula assembles the right AI agents for the job 3. Agents connect to your apps and execute the task autonomously 4. You get results, not just suggestions CONNECT 600+ TOOLS Gmail, Google Calendar, Google Sheets, Google Drive, GitHub, Slack, Discord, Telegram, Linear, Notion, Sentry, Shopify, Stripe, and 600+ more via secure OAuth. No API keys needed. BUILT FOR TEAMS Nebula isn't just another AI assistant — it's a full team of AI agents working alongside yours. Create specialized agents for engineering, operations, sales, and support. Set up workflow automation that runs across every tool your team uses. One platform, one chat, your entire AI workforce. PRIVACY & SECURITY Your data stays yours. Nebula connects to services through secure OAuth and never stores your passwords. All agent executions run in isolated sandboxes. Terms of use: https://nebula.gg/terms Privacy Policy: https://www.nebula.gg/privacy

Screenshots

Cluster AI4 screens
Nebula AI4 screens

Verdict

The call

The clearest difference is update cadence: Cluster AI at every 2 days against Nebula AI's monthly. Cluster AI also leads on rating (5.0 vs 4.8) and review sentiment (100% vs 86%). Nebula AI's advantage is ratings volume (19 vs 6). On price, ads, in-app purchases and monetization model 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. Cluster AI sells 2 in-app purchases, starting at $19.99 per month and Nebula AI sells 6 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Cluster AI holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 6 and 19 respectively. Written reviews point the same way: 100% of Cluster AI's written reviews are positive against 86% of Nebula AI's.

UpkeepUpdate frequency

Cluster AI ships an update every 2 days, Nebula AI monthly. Both last shipped on November 5, 2026.

Scorecard4 real differences · 6 level
Cluster AI versus Nebula AI: the parameters behind the verdict, then further details
ParameterCluster AINebula AI
PriceFreeFree
Rating5.0 (6 ratings) — better4.8 (19 ratings)
Positive reviews100.0% of reviews — better85.7% of reviews
Number of ratings619 — better
Update frequencyEvery 2 days — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS16.416.4
Further details — not scored
Size135 MB107 MB
Age rating12+4+
DeveloperClusterbaseAgent Labs, Inc.

Customer experience

Cluster AI

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Nebula AI

All ratings14 ratings
Positive92.9%
Neutral7.1%
Negative0.0%
Written reviews7 reviews
Positive85.7%
Neutral14.3%
Negative0.0%

In-app purchases

2 purchases

Cluster AI

Subscriptions2
  • Pro Monthly$19.991 Month
  • Max Monthly$199.991 Month
6 purchases

Nebula AI

Subscriptions2
  • Nebula Basic Plan7 Days trial$5.991 Month
  • Nebula Individual Plan$29.991 Month
One-time4
  • 10 Nebula Credits$12.99
  • 25 Nebula Credits$29.99
  • 50 Nebula Credits$59.99
Show 1 more
  • 100 Nebula Credits$119.99

Questions

Is Cluster AI free?
Cluster AI is free to download, with in-app purchases available.
Is Nebula AI free?
Nebula AI is free to download, with in-app purchases available.
Which has better reviews, Cluster AI or Nebula AI?
Cluster AI is rated higher. Cluster AI averages 5.0 out of 5 from 6 ratings, while Nebula AI averages 4.8 from 19 ratings.
Do Cluster AI or Nebula AI have ads?
Neither Cluster AI nor Nebula AI shows ads.
Which is updated more often, Cluster AI or Nebula AI?
Cluster AI ships an update every 2 days, and Nebula AI monthly. Most recently, Cluster AI was updated on November 5, 2026 and Nebula AI on November 5, 2026.

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