ntfy vs Comet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ntfy
This app allows you to send push notifications to your phone from scripts or other applications using simple HTTP requests. It acts as a client for a free, open-source pub-sub service, enabling you to receive alerts and updates directly on your device.
- Send notifications via REST API
- Subscribe to topics
- Publish messages via HTTP
- Integrates with Bash/PowerShell
- Free and open source client
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Send push notifications to your phone from any Bash or PowerShell script, or from your own app using PUT/POST requests, e.g. via curl on Linux or Invoke-WebRequest. ntfy is a client for https://ntfy.sh, a free and open source HTTP-based pub-sub service. You can subscribe to topics in this app, and then publish messages via a simple HTTP API. Uses: * Notify yourself when a long-running process is done * Ping your phone when a backup has failed * Alerts when someone logs into your server Example: $ curl -d "Your backup is done" ntfy.sh/mytopic Find more examples and usage instructions here: https://ntfy.sh/docs
Comet
This AI-powered browser acts as a personal assistant, streamlining workflows and boosting focus. It offers unified AI search, instant context, and automation across websites for tasks like summarizing, shopping, and research. The assistant learns your habits to keep you organized and prevent lost tabs or inspiration.
- Unified AI search
- Instant context and automation
- Summarize, shop, schedule, research
- Personalized AI assistant
- Tab and inspiration organization
- Workflow streamlining
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Comet is an AI-powered browser that acts as a personal assistant and thinking partner. Boost your focus, streamline your workflow, and turn curiosity into momentum. · Unified AI search, instant context, and automation across every site. Summarize, shop, schedule, and research—directly in the browser. · Enjoy the web and let the AI assistant handle your chores · Do everything on your to-do list faster with Comet · Comet adapts to how you think and work, learning your habits to keep you organized. Never lose track of tabs or inspiration. Terms of Service: https://www.perplexity.ai/tos Privacy Policy: https://www.perplexity.ai/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: ntfy at none against Comet's 3. ntfy also leads on review sentiment (79% vs 65%) and iOS requirement (15.0 vs 18.0). Comet's advantage is ratings volume (7.8K vs 470) and update cadence (weekly vs fortnightly). On price, rating, 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
Both are free to download. Comet sells 3 in-app purchases, starting at $20.00 per month. ntfy asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.8 for ntfy against 4.7 for Comet. That said, the two scores are not equally well evidenced: Comet has 7.8K ratings behind it against 470, so its average is the more settled of the two. Written reviews are what separate them: 79% of ntfy's written reviews are positive against 65% of Comet's.
ntfy ships an update fortnightly, Comet weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | ntfy | Comet |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (470 ratings) — better | 4.7 (7.8K ratings) |
| Positive reviews | 78.9% of reviews — better | 65.2% of reviews |
| Number of ratings | 470 | 7.8K — better |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 3 MB | 285 MB |
| Age rating | 4+ | 17+ |
| Developer | Philipp Heckel | Perplexity AI, Inc. |
Customer experience
ntfy
Comet
Bugs and requests
ntfy
Reported bugs
3 issues- Notifications not working on iOS
- Broken click URLs in notifications
- Compatibility issues with iOS notification summarizing
Requested features
5 requests- Ability to change notification sounds
- Support for Apple Watch
- Customizable topic names/aliases
- Improved iOS notification handling
- All topics view and read/unread indicators
Comet
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ntfy
No in-app purchases
Comet
- Perplexity Pro$20.001 Month
- Perplexity Pro$200.001 Year
- Perplexity Max$200.001 Month
