# 21 Pulse vs Corn Stack

The clearest difference is update cadence: Corn Stack at weekly against 21 Pulse's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

21 Pulse ships an update every 2 weeks, Corn Stack weekly. The most recent releases landed on September 17, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | 21 Pulse | Corn Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/21-pulse/id6757953169/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 6 MB | 41 MB |
| Requires iOS | **26.0** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Heiko Mattern](https://appshunter.io/developer/1869902214) | [DARK NEBULA PTE. LTD.](https://appshunter.io/developer/1888129461) |

## What reviewers say

### 21 Pulse

[App page](https://appshunter.io/ios/app/21-pulse/id6757953169)

This Bitcoin-focused app provides real-time price tracking, market sentiment indicators, and a map of merchants accepting Bitcoin. It also offers educational resources, a portfolio tracker, and various tools for enthusiasts and merchants.

**Highlights:** Real-time Bitcoin price and charts, Fear & Greed Index and on-chain stats, Bitcoin merchant locator (Lightning SatMap), Educational resources on Bitcoin, Portfolio tracker with DCA plans, Home screen widget for live price

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

**In-app purchases:** none


### Corn Stack

[App page](https://appshunter.io/ios/app/corn-stack-bitcoin-tracker/id6761471570)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 21 Pulse free?

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

### Is Corn Stack free?

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

### Do 21 Pulse or Corn Stack have ads?

Neither 21 Pulse nor Corn Stack shows ads.

### Which is updated more often, 21 Pulse or Corn Stack?

21 Pulse ships an update every 2 weeks, and Corn Stack weekly. Most recently, 21 Pulse was updated on September 17, 2026 and Corn Stack on September 18, 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.*