# Blink Voice Comet 2.0 vs Karma Boost

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.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

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.

## The numbers

| Metric | Blink Voice Comet 2.0 | Karma Boost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (6 ratings)](https://appshunter.io/ios/app/blink-voice-comet-20/id6450721235/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 120 MB | 316 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Blinkvoice Inc.](https://appshunter.io/developer/1524536778) | [Karma Boost](https://appshunter.io/developer/1799904417) |

## What reviewers say

### Blink Voice Comet 2.0

[App page](https://appshunter.io/ios/app/blink-voice-comet-20/id6450721235)

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:** macOS Compatibility, Siri integration

**In-app purchases:** none


### Karma Boost

[App page](https://appshunter.io/ios/app/karma-boost/id6742777618)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*