# Lunadar vs J

The clearest difference is update cadence: Lunadar at daily against J's monthly. J's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, 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.

Lunadar ships an update daily, J monthly. The most recent releases landed on October 6, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Lunadar | J |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lunadar/id6535689141/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Monthly |
| Monetization | Free | — |
| Size | 3 MB | 39 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Huy Ta](https://appshunter.io/developer/1756934665) | [Alon Ohad](https://appshunter.io/developer/1687488157) |

## What reviewers say

### Lunadar

[App page](https://appshunter.io/ios/app/lunadar/id6535689141)

Explore and manage time using a lunar calendar with this intuitive app. It offers detailed lunar date information, including month lengths, and allows for easy event management based on lunar cycles. Experience a unique approach to timekeeping on your iOS device.

**Highlights:** Lunar calendar exploration, Detailed lunar date information, Lunar month length display, Event management based on lunar cycle, Intuitive user interface

**Features:** macOS Compatibility

**In-app purchases:** none


### J

[App page](https://appshunter.io/ios/app/j-alendar/id6740437676)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lunadar free?

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

### Is J free?

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

### Do Lunadar or J have ads?

Neither Lunadar nor J shows ads.

### Which is updated more often, Lunadar or J?

Lunadar ships an update daily, and J monthly. Most recently, Lunadar was updated on October 6, 2026 and J on October 28, 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.*