COR Kosher vs WatchSiddur
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
COR Kosher
Access up-to-date information on Kosher practices and frequently asked questions. This official guide helps users quickly reference details about all things Kosher.
- Up-to-date Kosher information
- Frequently asked questions
- Quick reference guide
- Official Kashruth Council app
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The COR - Kashruth Council of Canada official application. This application allows you to keep up to date with all information Kosher. You can now quickly reference the most common questions in regards to all things Kosher.
WatchSiddur
Access a comprehensive collection of daily prayers and services directly on your wrist. Navigate through various tefillot, including Shacharit, Mincha, Ma'ariv, and special occasion prayers. This app offers a simple and easy-to-read interface for your spiritual needs.
- Daily prayer compilation
- Easy-to-read interface
- Navigate various tefillot
- Includes special occasion prayers
- Wearable device optimized
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This app compiles all of your everyday siddur into a simple, easy to read, siddur app! Navigate through different tefillot, including: Shacharit, Mincha, Ma'ariv, Musaf for Rosh Chodesh, Birkat Hamazon, Tefillah Haderech, Kriat Shema Al Hamitah, and Hallel.
Screenshots
Verdict
The clearest difference is rating: COR Kosher at 5.0 against WatchSiddur's 4.2. WatchSiddur's advantage is update cadence (every 2 weeks vs every 4 months) and ratings volume (13 vs 2). On price, review sentiment, 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.
COR Kosher holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: WatchSiddur has 13 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
COR Kosher ships an update every 4 months, WatchSiddur every 2 weeks. The most recent releases landed on October 3, 2026 and October 24, 2026 respectively.
| Parameter | COR Kosher | WatchSiddur |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.2 (13 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 13 — better |
| Update frequency | Every 4 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 16 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Kashruth Council of Canada | Alan Steinfeld |
Customer experience
COR Kosher
WatchSiddur
In-app purchases
COR Kosher
No in-app purchases
WatchSiddur
No in-app purchases
