Prairial vs YU Zmanim
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Prairial
This utility converts between the standard Gregorian calendar and the historical French Revolution calendar. It offers a widget for the current date in the Revolutionary era and an Apple Watch companion with dual display options, including decimal time.
- Gregorian to French Revolution calendar conversion
- Today screen widget
- Apple Watch companion app
- Decimal time display
- Standard image representation of months
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Prairial is a calendar utility that allows converting between the standard calendar (a.k.a. Greogorian) and the short-lived French Revolution one. The Today screen widget presents the present date of the Revolution era. The Apple Watch companion presents the present date of the Revolution era on 2 alternate screens, one with the standard image representation of the month, and the decimal time of the day (10 hours of 100 minutes of 100 seconds).
YU Zmanim
Find minyanim times and locations on the Wilf campus with a single click. This app is a convenient resource for students and faculty who need quick access to prayer schedules.
- One-click minyanim lookup
- Campus prayer schedules
- Wilf campus specific
- Convenient for on-the-go
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This app is a one-click way to find when and where the next minyanim are on the wilf campus. A great resource for those who do not have a web browser!
Screenshots
Verdict
The clearest difference is price: YU Zmanim at Free against Prairial's $0.99. YU Zmanim also leads on rating (5.0 vs 4.3) and update cadence (every 2 weeks vs every 6 months). On ratings volume, ads, in-app purchases and device support 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
YU Zmanim is free to download; Prairial costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
YU Zmanim holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 2 respectively.
Prairial ships an update every 6 months, YU Zmanim every 2 weeks. The most recent releases landed on October 23, 2026 and October 10, 2026 respectively.
| Parameter | Prairial | YU Zmanim |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.3 (3 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 6 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 4 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Laurent Rodier | Yitzchok Gray |
Customer experience
Prairial
YU Zmanim
In-app purchases
Prairial
No in-app purchases
YU Zmanim
No in-app purchases
