# DecisionMentor vs Comet

The clearest difference is rating: Comet at 4.7 against DecisionMentor's 4.0. Comet also leads on ads (none vs shown) and ratings volume (7.8K vs 4). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. DecisionMentor sells 1 in-app purchase, starting at $3.99 per month 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 4.0. That said, the two scores are not equally well evidenced: Comet has 7.8K ratings behind it against 4, so its average is the more settled of the two.

DecisionMentor ships an update every 5 weeks, Comet every 8 days. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | DecisionMentor | Comet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/decisionmentor/id1531462898/reviews) | **[4.7 (7.8K ratings)](https://appshunter.io/ios/app/comet-ai-browser-and-assistant/id6748622471/reviews)** |
| Number of ratings | 4 | **7.8K** |
| Positive reviews | — | 65.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 8 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 59 MB | 291 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 17+ |
| Developer | [Truenary](https://appshunter.io/developer/1498574788) | [Perplexity AI, Inc.](https://appshunter.io/developer/1668000336) |

## What reviewers say

### DecisionMentor

[App page](https://appshunter.io/ios/app/decisionmentor/id1531462898)

This app helps you make complex decisions by breaking them down into criteria. It allows you to weigh pros and cons, prioritize objectives, and compare options scientifically. Get insights from others' decisions and use AI for research support.

**Highlights:** Multi-criteria decision making, Prioritize criteria and compare options, Identify pros and cons, AI-powered research support, Public decision feed, Decision Wheel Roulette

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional | $3.99 | per month |


### Comet

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

This AI-powered browser serves as a personal assistant, enhancing focus and streamlining workflows. It offers unified AI search, instant context, and automation across websites for tasks like summarizing, shopping, scheduling, and research.

**Highlights:** Unified AI search, Instant context and automation, Summarize, shop, schedule, research, Personalized workflow adaptation, Tab and inspiration management

**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 DecisionMentor free?

DecisionMentor 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, DecisionMentor or Comet?

Comet is rated higher. DecisionMentor averages 4.0 out of 5 from 4 ratings, while Comet averages 4.7 from 7.8K ratings.

### Do DecisionMentor or Comet have ads?

DecisionMentor shows ads; Comet does not.

### Which is updated more often, DecisionMentor or Comet?

DecisionMentor ships an update every 5 weeks, and Comet every 8 days. Most recently, DecisionMentor was updated on November 3, 2026 and Comet on November 9, 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.*