# 21Pool vs K1Pool

The clearest difference is review sentiment: 21Pool at 100% against K1Pool's 0%. 21Pool also leads on iOS requirement (13.0 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

21Pool ships an update every 3 weeks, K1Pool every 4 weeks. The most recent releases landed on September 9, 2026 and June 9, 2026 respectively.

## The numbers

| Metric | 21Pool | K1Pool |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Monetization | Free | Free |
| Size | 25 MB | 26 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Inter Select Service FZE LLC](https://appshunter.io/developer/1754227509) | [K1POOL LLC](https://appshunter.io/developer/1787309642) |

## What reviewers say

### 21Pool

[App page](https://appshunter.io/ios/app/21pool-crypto-mining-pool/id6504883855)

This app provides a profitable and reliable platform for cryptocurrency mining. It offers efficient mining with a fair formula, low fees, and stable connections. Users can track equipment statistics, monitor earnings, and manage workers through an intuitive interface.

**Highlights:** Efficient mining with FPPS formula, Low fees and stable connection, Real-time equipment statistics, Daily earnings and withdrawal monitoring, Worker management, User-friendly interface

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

**In-app purchases:** none


### K1Pool

[App page](https://appshunter.io/ios/app/k1pool-crypto-mining-pool/id6739852780)

Monitor your cryptocurrency mining operations and track earnings with real-time statistics. Receive push notifications for worker and device status, pool news, and payout updates.

**Highlights:** Mining speed tracking, Worker status notifications, Device status monitoring, Real-time exchange rates, Mining statistics overview, Payout monitoring, Pool news push notifications

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 21Pool free?

21Pool is free to download, with no in-app purchases.

### Is K1Pool free?

K1Pool is free to download, with no in-app purchases.

### Do 21Pool or K1Pool have ads?

Neither 21Pool nor K1Pool shows ads.

### Which is updated more often, 21Pool or K1Pool?

21Pool ships an update every 3 weeks, and K1Pool every 4 weeks. Most recently, 21Pool was updated on September 9, 2026 and K1Pool on June 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.*