# WhenMoon vs Bitcoin Calculator

The clearest difference is update cadence: Bitcoin Calculator at every 2 days against WhenMoon's every 2 months. WhenMoon's advantage is iOS requirement (12.1 vs 16.6). 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.

WhenMoon ships an update every 2 months, Bitcoin Calculator every 2 days. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | WhenMoon | Bitcoin Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (11 ratings)](https://appshunter.io/ios/app/bitcoin-calculator/id6738003780/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | — | Free |
| Size | 15 MB | 3 MB |
| Requires iOS | **12.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Yoon](https://appshunter.io/developer/1268301168) | [Stanislav Cekunov](https://appshunter.io/developer/1085076843) |

## What reviewers say

### WhenMoon

[App page](https://appshunter.io/ios/app/whenmoon/id1291450670)

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

**In-app purchases:** none


### Bitcoin Calculator

[App page](https://appshunter.io/ios/app/bitcoin-calculator/id6738003780)

Visualize your Bitcoin retirement plan by tracking savings, income, and BTC growth. Forecast your path to financial freedom with detailed projections and customizable inflation rates. This app prioritizes your privacy with local data storage.

**Highlights:** Bitcoin retirement calculator, BTC growth rate customization, Live Bitcoin price tracking, Savings and passive income tracking, Year-by-year financial projections, Inflation and income growth adjustment

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

**In-app purchases:** none


## Frequently asked questions

### Is WhenMoon free?

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

### Is Bitcoin Calculator free?

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

### Do WhenMoon or Bitcoin Calculator have ads?

Neither WhenMoon nor Bitcoin Calculator shows ads.

### Which is updated more often, WhenMoon or Bitcoin Calculator?

WhenMoon ships an update every 2 months, and Bitcoin Calculator every 2 days. Most recently, WhenMoon was updated on October 12, 2026 and Bitcoin Calculator on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*