Comparison

Blink Voice Comet 2.0 vs Karma Boost

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

Head to head
About

Blink Voice Comet 2.0

Enhance your business communication with high-quality voice calls and secure messaging. Manage contacts and stay connected across multiple devices with this enterprise-grade tool.

Highlights
  • High-quality voice calls
  • End-to-end encrypted messaging
  • Contact management
  • Multi-platform accessibility
  • Secure business communication
Features
Read full description

Comet Softphone by Blink Voice Inc. is a robust and efficient communication tool crafted specifically to elevate your business calling experience on iOS devices. Whether you're a small enterprise or a large corporation, Comet Softphone delivers unparalleled voice quality and an array of essential features tailored to meet your professional needs. Key Features: High-Quality Voice Calls: Experience crystal-clear, enterprise-grade voice calls over secure Wi-Fi, 5G, 4G, or 3G connections. Enjoy uninterrupted conversations with clients, partners, and colleagues, ensuring every detail is conveyed with utmost clarity. Secure Messaging: Keep sensitive business discussions confidential with real-time, end-to-end encrypted messaging. Share vital information, documents, and multimedia securely within the app, maintaining the privacy of your corporate communications. Contact Management: Seamlessly manage your business contacts within the app. Sync with your organization's address book, categorize contacts by departments, and effortlessly search for team members to ensure streamlined communication. Multi-Platform Accessibility: Access your business communication on-the-go, across multiple devices. Comet ensures a consistent experience on iOS, empowering your team to stay connected wherever they are. Comet caters to all levels of business communication needs. Enhance your organization's efficiency, professionalism, and client relations with our intuitive and feature-rich softphone app. Download Comet today and unlock the full potential of seamless B2B communication on your iOS devices.

About

Karma Boost

Features
Read full description

The mobile app, "Karma Boost," is a business management platform, designed to allow users to manage their business from their mobile devices. •CRM Management: Users can manage contacts, appointments, reviews, and opportunities. They can add new contacts, edit existing ones, and organize them into lists. •Communication: The app allows users to initiate phone calls, send emails, and send SMS messages to their contacts. Users can also review and reply to messages and discussions. •Calendar Management: Users can view and manage their calendars, and add or edit appointments. •Pipeline Management: The app provides an overview of business pipelines, allowing users to monitor their real-time status. Users can also add contacts to specific pipelines and provide opportunity information. •Opportunity Creation: Users can input details for new leads and opportunities into campaigns or pipelines. •Review Management: Users can send review requests, manage existing reviews, and provide responses. •Invoicing: The app allows users to generate and send invoices directly to their contacts. Note that an active Stripe account is needed for this feature. •Task Management: Users can create tasks and book appointments for their contacts. •Note Taking: Users can add notes and other information within each contact to facilitate smoother interactions. •Mobile Payments: Users can accept tap-to-pay payments using their mobile devices, turning their phone into a credit card terminal.

Screenshots

Blink Voice Comet 2.03 screens
Karma Boost4 screens

Verdict

The call

Blink Voice Comet 2.0 and Karma Boost are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Blink Voice Comet 2.0 ships an update every 2 months, Karma Boost every 3 months. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.

ScorecardNo meaningful differences
Blink Voice Comet 2.0 versus Karma Boost: the parameters behind the verdict, then further details
ParameterBlink Voice Comet 2.0Karma Boost
PriceFreeFree
Rating4.0 (6 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.6 — better
Further details — not scored
Size120 MB316 MB
Age rating4+4+
DeveloperBlinkvoice Inc.Karma Boost

In-app purchases

None

Blink Voice Comet 2.0

No in-app purchases

None

Karma Boost

No in-app purchases

Questions

Is Blink Voice Comet 2.0 free?
Blink Voice Comet 2.0 is free to download, with no in-app purchases.
Is Karma Boost free?
Karma Boost is free to download, with no in-app purchases.
Do Blink Voice Comet 2.0 or Karma Boost have ads?
Neither Blink Voice Comet 2.0 nor Karma Boost shows ads.
Which is updated more often, Blink Voice Comet 2.0 or Karma Boost?
Blink Voice Comet 2.0 ships an update every 2 months, and Karma Boost every 3 months. Most recently, Blink Voice Comet 2.0 was updated on October 14, 2026 and Karma Boost on October 25, 2026.

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