Siddur Pro vs KosherChat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Siddur Pro
This app offers a comprehensive digital siddur experience, featuring daily prayers, customizable zmanim, and a daily learning dashboard. It includes tools for holidays and special observances, with smart notifications to keep users on track.
- Automatic daily prayer adaptation
- Location-aware zmanim
- Daily learning dashboard
- Holiday and seasonal tools
- 40-day Nishmas tracker
- Smart notifications
- Intuitive home screen customization
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Siddur Pro is the most legendary designed siddur on iOS — a complete daily companion that brings together tefillah, zmanim, daily learning, and holiday-aware tefillos in one stunning, native experience. A SIDDUR THAT KNOWS THE DAY Siddur Pro automatically adapts every tefillah to the calendar — Ya'aleh V'Yavo on Rosh Chodesh and Yom Tov, Al HaNissim on Chanukah and Purim, Tal U'Matar in season, and the right Shabbos modifications. Just open and daven. SHACHRIS, MINCHA, MAARIV Beautifully typeset Hebrew with premium fonts, ultra fast rendering, smooth scrolling, and an interface designed for daily use — at the game, on the train, or anywhere! ZMANIM, ANYWHERE YOU ARE Location-aware zmanim including sunrise, sof zman krias shema, plag, shkia, tzeis, and more. Find a shul, see davening times, and never miss a davening. DAILY LEARNING DASHBOARD Pick up where you left off across every major program: • Daf Yomi • Mishna Yomi • Nach Yomi • Tehillim Yomi • Rambam Yomi • Kitzur Shulchan Aruch Yomi • Aruch HaShulchan Yomi • Chofetz Chaim Yomi • Daily Mitzvah Progress tracking and full text right inside the app. HOLIDAY & SEASONAL TOOLS • Bedikas Chametz & Biur Chametz with brachos • Eruv Tavshilin • Sefiras HaOmer with daily reminders and a built-in counter • Kinnos for Tisha B'Av • Selichos • Kiddush Levana • Hataras Nedarim • Kaparos, Tashlich, Lulav • Birchas Habanim on erev Yom Kippur • Chol HaMoed Pesach and Sukkos inserts • Megillas Esther & Megillas Eichah NISHMAS 40-DAY TRACKER A first-of-its-kind tool to commit to saying Nishmas Kol Chai for 40 consecutive days — with progress tracking and a streak counter that keeps you going. SMART NOTIFICATIONS Sefiras HaOmer at the right time each evening. Daily learning reminders. Custom alerts so you never miss a day. AN INTUITIVE HOME SCREEN Show exactly what matters — tefillos, learning programs, zmanim, holiday cards. Hide the rest. The app rearranges itself around the day, so erev Pesach looks different from a quiet Tuesday in Cheshvan. DESIGNED FOR TODAY • Native iOS app — fast, fluid, fully offline for the core texts • Beautiful Hebrew typography with carefully chosen fonts • Dark mode that's easy on the eyes (Jason Mode) • Thoughtful animations and tactile feedback • Built by a developer who uses it every day
KosherChat
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KosherChat is a capable AI assistant built for Jewish life — with a thorough kosher content filter and thoughtful support for the rhythm of your week. Ask questions, draft messages, do deep research, attach photos, and keep your conversations and memory in one place on iPhone and iPad. WHAT YOU CAN DO • Chat with a capable AI — everyday questions, writing help, research, and more • Get Shabbos times (zmanim) and weather based on your location • Set reminders and view tasks in Today • Attach photos and files from chat • Save Artifacts from your conversations — code, documents, and previews in one place • Install Skills — reusable instructions for tasks like email drafts, Shabbos planning, or research • Create custom Skills with AI (paid plans) • Connect Tether to run tasks on your computer from your phone (Pro) • Optional Google integrations on Pro — Gmail, Drive, Calendar • AI instrumental song generation on Pro plans KOSHER BY DESIGN — NOT JUST IN NAME Most AI assistants have no guardrails. KosherChat is different. Advanced built-in content filters block inappropriate, explicit, and offensive material by default — no settings to toggle, no loopholes. It’s an assistant you can open without hesitation, in any context, around anyone. BUILT FOR JEWISH LIFE KosherChat understands the rhythm of your week — candle lighting times, zmanim, Shabbos planning, and halachic questions answered in plain language with real sources. One thing we take seriously: KosherChat will never pasken. When you ask a halachic question, it brings down the relevant sources — Shulchan Aruch, Mishnah Berurah, poskim — explains the considerations clearly, and directs you to ask a qualified Rav for a final ruling. That’s not a limitation. That’s the point. An AI has no business paskening, and ours never will. PLANS • Free — generous daily chat limits, no credit card required • Pro — $29.99/month: more access, premium models, Google apps, Tether, and optional extra credits • Pay as you go — buy credits when you need them; credits never expire Subscriptions and credit packs on iOS are purchased through the App Store. Restore purchases anytime from Account → Billing. PRIVATE BY DESIGN Your conversations are between you and KosherChat — not a public social feed. Notifications and location are optional and help with reminders and zmanim; the app explains each before iOS asks. You can delete your account anytime from the app. KosherChat provides informational assistance only — not professional rabbinic, medical, or legal advice. For halachic decisions, always consult a qualified Rav. Privacy Policy: https://www.kosherchatai.com/web/privacy Terms of Service: https://www.kosherchatai.com/web/terms
Screenshots
Verdict
The clearest difference is in-app purchases: Siddur Pro at none against KosherChat's 6. KosherChat's advantage is update cadence (every 4 days vs every 10 days) and device support (3 vs 1). On price and ads 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. KosherChat sells 6 in-app purchases, starting at $9.99 per month. Siddur Pro asks for nothing beyond the download.
Siddur Pro ships an update every 10 days, KosherChat every 4 days. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.
| Parameter | Siddur Pro | KosherChat |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 10 days | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 18 MB | 38 MB |
| Age rating | 4+ | 12+ |
| Developer | Samuel Cohen | JOSEPH TAUB |
In-app purchases
Siddur Pro
No in-app purchases
KosherChat
- KosherChat Plus$9.991 Month
- KosherChat Pro$29.991 Month
- KosherChat Credits$4.99
- KosherChat Credits$9.99
- KosherChat Credits$24.99
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- KosherChat Credits$49.99








