# PlanetPal vs Carbon Tech

The clearest difference is in-app purchases: PlanetPal at none against Carbon Tech's 7. PlanetPal also leads on ratings volume (3 vs 1). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Carbon Tech sells 7 one-off in-app purchases. PlanetPal asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for PlanetPal against 5.0 for Carbon Tech. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 19, 2026.

## The numbers

| Metric | PlanetPal | Carbon Tech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/planetpal-carbon-tracker/id6469002691/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/carbon-tech/id6475386118/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 31 MB | 102 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KNS Technologies Pvt Ltd](https://appshunter.io/developer/507094213) | [ayltech](https://appshunter.io/developer/1724124350) |

## What reviewers say

### PlanetPal

[App page](https://appshunter.io/ios/app/planetpal-carbon-tracker/id6469002691)

This app helps you monitor your environmental impact by answering simple questions about your lifestyle. Engage in challenges, earn points, and climb the leaderboard to become a top eco-conscious user.

**Highlights:** Carbon emission tracking, Lifestyle-based questions, Interactive challenges, Point collection system, Leaderboard competition, User leveling system

**Features:** macOS Compatibility

**In-app purchases:** none


### Carbon Tech

[App page](https://appshunter.io/ios/app/carbon-tech/id6475386118)

This app allows you to customize the LED screen on your AI-powered backpack. Create and upload text, images, or animations to express your personality and style. Connect via Bluetooth and personalize your backpack's display with ease.

**Highlights:** AI-powered backpack integration, Customizable LED screen, Upload text, images, and animations, Bluetooth connectivity, Modify backpack patterns, Adjust brightness, Activate dynamic display modes

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 coin | $0.99 | one-time |
| AI Backpack 500 Coins | $4.99 | one-time |
| AI Backpack 1000 Coins | $9.99 | one-time |
| AI Backpack 1500 Coins | $14.99 | one-time |
| AI Backpack 2000 Coins | $19.99 | one-time |
| AI Backpack 2500 Coins | $24.99 | one-time |
| AI Backpack 3000 Coins | $29.99 | one-time |


## Frequently asked questions

### Is PlanetPal free?

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

### Is Carbon Tech free?

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

### Which has better reviews, PlanetPal or Carbon Tech?

PlanetPal and Carbon Tech are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do PlanetPal or Carbon Tech have ads?

Neither PlanetPal nor Carbon Tech shows ads.

### Which is updated more often, PlanetPal or Carbon Tech?

PlanetPal ships an update every 3 weeks, and Carbon Tech every 3 weeks. Most recently, PlanetPal was updated on October 19, 2026 and Carbon Tech on October 19, 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.*