Dreyfus DataSafe vs Siddur Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dreyfus DataSafe
This application is exclusively for clients of Dreyfus Sons & Co Ltd, Banquiers. It provides secure access to client-specific information and services.
- Client-exclusive access
- Secure information portal
- Services for Dreyfus clients
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This app is reserved for use by the clients of Dreyfus Sons & Co Ltd, Banquiers.
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
Screenshots
Verdict
The clearest difference is rating: Siddur Pro at 5.0 against Dreyfus DataSafe's 1.0. Siddur Pro also leads on ads (none vs shown) and update cadence (every 10 days vs every 9 months). Dreyfus DataSafe's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.6). On price 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.
Siddur Pro holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Siddur Pro has 8 ratings behind it against 1, so its average is the more settled of the two.
Dreyfus DataSafe ships an update every 9 months, Siddur Pro every 10 days. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.
| Parameter | Dreyfus DataSafe | Siddur Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (8 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 8 — better |
| Update frequency | Every 9 months | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 401 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Dreyfus Söhne & Cie AG | Samuel Cohen |
Customer experience
Dreyfus DataSafe
Siddur Pro
In-app purchases
Dreyfus DataSafe
No in-app purchases
Siddur Pro
No in-app purchases









