# Pinecone Research vs Karbon

The clearest difference is review sentiment: Karbon at 78% against Pinecone Research's 12%. Karbon also leads on rating (4.7 vs 2.0) and update cadence (every 2 weeks vs every 5 weeks). Pinecone Research's advantage is ratings volume (149 vs 15). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Karbon holds the better App Store score, 4.7 against 2.0. That said, the two scores are not equally well evidenced: Pinecone Research has 149 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 12% of Pinecone Research's written reviews are positive against 78% of Karbon's.

Pinecone Research ships an update every 5 weeks, Karbon every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Pinecone Research | Karbon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (149 ratings)](https://appshunter.io/ios/app/pinecone-research/id1497166667/reviews) | **[4.7 (15 ratings)](https://appshunter.io/ios/app/karbon-x/id1673803570/reviews)** |
| Number of ratings | **149** | 15 |
| Positive reviews | 11.7% of reviews | **77.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 18 MB | 91 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Market Once Holdings.com, LLC](https://appshunter.io/developer/1018976191) | [Karbon-X Project Inc.](https://appshunter.io/developer/1673803572) |

## What reviewers say

### Pinecone Research

[App page](https://appshunter.io/ios/app/pinecone-research/id1497166667)

Participate in paid surveys and manage your membership conveniently through this app. View available opportunities, take surveys, track your earnings, and redeem rewards. You can also update your profile and contact customer service.

**Highlights:** View survey opportunities, Take surveys, View and redeem points, Survey history, Customer service contact, Update personal information

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💰 Guaranteed payout per survey (historically)
- ⏱️ Quick surveys (historically)
- ✅ Legit survey site (historically)

**What reviewers complain about**

- ❌ Frequent disqualification from surveys
- ❌ Surveys not loading or closing prematurely
- ❌ Loss of points or rewards
- ❌ Difficulty logging in or account access issues
- ❌ Poor customer service response

**Reported bugs**

- Surveys not loading, closing, or giving errors at the end
- Login issues, password reset not working
- App crashing or freezing
- Points not being credited after completing surveys
- Redemption page errors

**Requested features**

- Improve app/website stability and performance
- Fix survey loading and closing issues
- Restore previous payout methods (e.g., PayPal)
- Increase survey availability and qualification rates
- Improve customer service responsiveness and effectiveness


### Karbon

[App page](https://appshunter.io/ios/app/karbon-x/id1673803570)

This app allows environmentally conscious individuals and businesses to support clean energy and eco-friendly initiatives. Users can contribute to projects like tree planting and ocean de-acidification, track their impact, and receive achievement badges. Offset plans can be switched or canceled, with payments charged monthly or annually.

**Highlights:** Support tree planting and carbon reduction projects, Receive achievement badges, Switch supported projects, Attend eco-friendly events, Calculate carbon footprint, Monthly and annual offset plans

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Pinecone Research free?

Pinecone Research is free to download, with no in-app purchases.

### Is Karbon free?

Karbon is free to download, with no in-app purchases.

### Which has better reviews, Pinecone Research or Karbon?

Karbon is rated higher. Pinecone Research averages 2.0 out of 5 from 149 ratings, while Karbon averages 4.7 from 15 ratings.

### Do Pinecone Research or Karbon have ads?

Neither Pinecone Research nor Karbon shows ads.

### Which is updated more often, Pinecone Research or Karbon?

Pinecone Research ships an update every 5 weeks, and Karbon every 2 weeks. Most recently, Pinecone Research was updated on October 24, 2026 and Karbon on October 24, 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.*