TAN Digital vs Self Study CS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TAN Digital
Access a vast library of authentic Catholic literature, including spiritual classics, writings of Saints, and catechetical texts. Enjoy a reverent reading experience with features like bookmarking and offline access to deepen your spiritual journey.
- Thousands of Catholic books and devotionals
- Reverent reading experience
- Day and night modes
- Bookmark passages
- Offline access
- Curated collections
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Here you will find a treasury of authentic Catholic works—spiritual classics, the writings of the Saints, the Fathers and Doctors of the Church, trusted catechetical texts, and devotions to guide you toward holiness. Every title is chosen to nourish souls and strengthen the life of grace. Features: Over thousands of Catholic books and devotionals A simple, reverent reading experience with day and night modes Bookmark passages for deeper reflection Offline access, so you may read anywhere Curated collections for feasts, liturgical seasons, and spiritual themes
Self Study CS
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The best way to self-learn Computer Science — hundreds of CS topics, offline, beautifully formatted for iPhone and iPad.Self-Study CS is a focused reader for the open CS Self-Learning guide: hundreds of computer-science topics in Markdown, optimized for long reading sessions on iPhone and iPad. WHAT YOU GET • Offline catalog — Explore bundled chapters by topic; switch between English (.en.md) and Chinese primary files when both exist. • Reader built for technical text — Comfortable light, dark, and sepia themes, adjustable text size and line spacing, and a table of contents for quick jumps. • Pick up where you left off — Continue reading and per-chapter scroll progress. • Bookmarks — Save chapters and open them from one place. MY GUIDES Create your own course-style notes with optional sections inspired by the bundled template. Content is stored locally on your device in a private database—not on our servers.
Screenshots
Verdict
The clearest difference is ads: TAN Digital at none against Self Study CS's shown. TAN Digital also leads on iOS requirement (15.1 vs 18.0). Self Study CS's advantage is update cadence (daily vs every 2 weeks). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
TAN Digital ships an update every 2 weeks, Self Study CS daily. The most recent releases landed on October 10, 2026 and September 20, 2026 respectively.
| Parameter | TAN Digital | Self Study CS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (80 ratings) — better | — |
| Positive reviews | 42.9% of reviews | — |
| Number of ratings | 80 — better | — |
| Update frequency | Every 2 weeks | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 54 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | SAINT BENDICT PRESS LLC | APPS BAY LIMITED |
In-app purchases
TAN Digital
No in-app purchases
Self Study CS
No in-app purchases
Questions
Is TAN Digital free?
Is Self Study CS free?
Do TAN Digital or Self Study CS have ads?
Which is updated more often, TAN Digital or Self Study CS?
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