Lunadar vs J
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lunadar
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.
- Lunar calendar exploration
- Detailed lunar date information
- Lunar month length display
- Event management based on lunar cycle
- Intuitive user interface
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Lunadar is the perfect companion for you to explore and manage time according to the lunar calendar conveniently and accurately. With a simple and intuitive interface, Lunadar provides detailed information about lunar dates, including the number of days in each lunar month. Easily add and manage your important events based on the lunar cycle right on your iOS device. Discover Lunadar today and experience this unique utility!
J
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J-alendar is the perfect solution for keeping track of important Jewish dates like birthdays, anniversaries, and memorial days. Conventional calendars only follow the Gregorian system, making it easy to overlook significant moments in the Jewish calendar. With J-alendar, you can effortlessly select a Jewish date and save it directly to your phone's calendar. Whether it’s a yearly birthday reminder or a special anniversary, our app ensures you’re always prepared with timely notifications. Simple, intuitive, and reliable—J-alendar helps you stay connected to the moments that matter most. Download now and never miss a Jewish date again!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Lunadar | J |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Daily — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 3 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Huy Ta | Alon Ohad |
In-app purchases
Lunadar
No in-app purchases
J
No in-app purchases
