# Wadokei57 Astronomical clock vs HashForge

The clearest difference is price: HashForge at Free against Wadokei57 Astronomical clock's $3.99. Wadokei57 Astronomical clock's advantage is in-app purchases (none vs 1) and update cadence (every 5 days vs fortnightly). On ads there is nothing between them.

HashForge is free to download; Wadokei57 Astronomical clock costs $3.99 up front. HashForge sells 1 one-off in-app purchase. Wadokei57 Astronomical clock asks for nothing beyond the download.

Wadokei57 Astronomical clock ships an update every 5 days, HashForge fortnightly. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Wadokei57 Astronomical clock | HashForge |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Paid | — |
| Size | 4 MB | 1 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Shinichi Sekiguchi](https://appshunter.io/developer/1509262945) | [永 张](https://appshunter.io/developer/1806535769) |

## What reviewers say

### Wadokei57 Astronomical clock

[App page](https://appshunter.io/ios/app/wadokei57-astronomical-clock/id6748839654)

This app combines a traditional Japanese clock based on sunrise and sunset with a miniature planetarium. It displays celestial movements, moon phases, and seasonal changes, all optimized for Apple Watch.

**Highlights:** Traditional Japanese time system, Miniature planetarium with star simulation, Moon phase and seasonal displays, Complications for Moon, Sun, Venus, Time navigation via crown rotation, Offline operation

**Features:** Apple Watch app

**In-app purchases:** none


### HashForge

[App page](https://appshunter.io/ios/app/hashforge/id6787113118)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HashGenerator Pro | $4.99 | one-time |


## Frequently asked questions

### Is Wadokei57 Astronomical clock free?

Wadokei57 Astronomical clock costs $3.99, with no in-app purchases.

### Is HashForge free?

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

### Do Wadokei57 Astronomical clock or HashForge have ads?

Neither Wadokei57 Astronomical clock nor HashForge shows ads.

### Which is updated more often, Wadokei57 Astronomical clock or HashForge?

Wadokei57 Astronomical clock ships an update every 5 days, and HashForge fortnightly. Most recently, Wadokei57 Astronomical clock was updated on October 8, 2026 and HashForge on October 15, 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.*