# 4K Life vs Comet

The clearest difference is rating: Comet at 4.7 against 4K Life's 3.5. Comet also leads on ads (none vs shown) and ratings volume (7.8K vs 20). 4K Life's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 18.0). On price, in-app purchases and monetization model there is nothing between them.

Both are free to download. 4K Life sells 1 one-off in-app purchase and Comet sells 3 in-app purchases, starting at $20.00 per month. Whichever you choose, the download price is not the number that matters.

Comet holds the better App Store score, 4.7 against 3.5. That said, the two scores are not equally well evidenced: Comet has 7.8K ratings behind it against 20, so its average is the more settled of the two. Written reviews point the same way: 50% of 4K Life's written reviews are positive against 65% of Comet's.

4K Life ships an update monthly, Comet weekly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 4K Life | Comet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (20 ratings)](https://appshunter.io/ios/app/4k-life/id1556860101/reviews) | **[4.7 (7.8K ratings)](https://appshunter.io/ios/app/comet-ai-browser-and-assistant/id6748622471/reviews)** |
| Number of ratings | 20 | **7.8K** |
| Positive reviews | 50.0% of reviews | **65.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 20 MB | 285 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [MitotiM](https://appshunter.io/developer/418360190) | [Perplexity AI, Inc.](https://appshunter.io/developer/1668000336) |

## What reviewers say

### 4K Life

[App page](https://appshunter.io/ios/app/4k-life/id1556860101)

Visualize your remaining lifespan in weeks and track your progress towards life goals. This app encourages you to make the most of your time, with a countdown of your remaining weeks and a visual representation of your life's progress.

**Highlights:** Lifespan visualization in weeks, Goal achievement tracking, Urgency-driven progress motivation, Countdown timer for remaining weeks

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ad | $3.99 | one-time |


### Comet

[App page](https://appshunter.io/ios/app/comet-ai-browser-and-assistant/id6748622471)

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.

**Highlights:** Unified AI search, Instant context and automation, Summarize, shop, schedule, research, Personalized AI assistant, Tab and inspiration organization, Workflow streamlining

**Features:** Apple Wallet

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Perplexity Pro | $20.00 | per month |
| Perplexity Pro | $200.00 | per year |
| Perplexity Max | $200.00 | per month |


## Frequently asked questions

### Is 4K Life free?

4K Life is free to download, with in-app purchases available.

### Is Comet free?

Comet is free to download, with in-app purchases available.

### Which has better reviews, 4K Life or Comet?

Comet is rated higher. 4K Life averages 3.5 out of 5 from 20 ratings, while Comet averages 4.7 from 7.8K ratings.

### Do 4K Life or Comet have ads?

4K Life shows ads; Comet does not.

### Which is updated more often, 4K Life or Comet?

4K Life ships an update monthly, and Comet weekly. Most recently, 4K Life was updated on October 24, 2026 and Comet on October 27, 2026.

---

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