# ZotBins vs Krumbit

The clearest difference is rating: ZotBins at 5.0 against Krumbit's 4.5. ZotBins also leads on update cadence (every 2 days vs weekly) and iOS requirement (13.4 vs 15.1). On price, review sentiment, ratings volume and ads there is nothing between them.

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

ZotBins holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 8 and 15 respectively. Written reviews point the same way: 100% of ZotBins's written reviews are positive against 94% of Krumbit's.

ZotBins ships an update every 2 days, Krumbit weekly. The most recent releases landed on June 4, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | ZotBins | Krumbit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/zotbins/id6743295314/reviews)** | [4.5 (15 ratings)](https://appshunter.io/ios/app/krumbit-learn-while-scrolling/id6747910126/reviews) |
| Number of ratings | 8 | **15** |
| Positive reviews | **100.0% of reviews** | 93.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | Free | Free |
| Size | 68 MB | 56 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Heat Studio LLC](https://appshunter.io/developer/1766372656) | [Boqiang Liang](https://appshunter.io/developer/1762321893) |

## What reviewers say

### ZotBins

[App page](https://appshunter.io/ios/app/zotbins/id6743295314)

This app helps users learn about proper waste disposal and improve recycling habits through gamified challenges and educational quizzes. Users can scan waste items, compete on leaderboards, and track their environmental impact.

**Highlights:** Camera scanner for waste item classification, Points system for correct disposal, Campus-wide and friend leaderboards, Sustainability quizzes, Waste diversion data tracking, Rewards and benefits for users

**Features:** macOS Compatibility

**In-app purchases:** none


### Krumbit

[App page](https://appshunter.io/ios/app/krumbit-learn-while-scrolling/id6747910126)

This app transforms your scrolling time into learning opportunities. Watch short video lessons on various topics and test your knowledge with quick quizzes. Build a daily habit of continuous learning in just minutes a day.

**Highlights:** Bite-sized video lessons, Quick quizzes, Daily streak tracking, Progress monitoring, Explore diverse topics, In-app feedback

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

**In-app purchases:** none


## Frequently asked questions

### Is ZotBins free?

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

### Is Krumbit free?

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

### Which has better reviews, ZotBins or Krumbit?

ZotBins is rated higher. ZotBins averages 5.0 out of 5 from 8 ratings, while Krumbit averages 4.5 from 15 ratings.

### Do ZotBins or Krumbit have ads?

Neither ZotBins nor Krumbit shows ads.

### Which is updated more often, ZotBins or Krumbit?

ZotBins ships an update every 2 days, and Krumbit weekly. Most recently, ZotBins was updated on June 4, 2026 and Krumbit on September 16, 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.*