Comparison

Folio vs Igrot Kodesh

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Folio

Features
Read full description

Folio gets you to actually finish an English classic — in the original, cover to cover. Most reading apps drop you into a hard text and hope you cope. Folio is different: it's a prep course, not just a reader. Before you read, you pre-study the ~600 words that cover 95% of that specific book — plus its key grammar, idioms, and character names — using spaced repetition with self-rated confidence. Once your "reading power" is high enough, you read the unabridged original with a tap-to-translate dictionary and LibriVox audiobook narration. HOW IT WORKS 1. Pre-study the book. Spaced-repetition flashcards for the vocabulary, grammar, idioms, and names that unlock the text — chapter by chapter. Folio catches the words you only think you know. 2. Watch your reading power rise. A per-chapter gauge fills as you study, rewarding real recall. 3. Read the original. The full, unabridged text with tap-to-translate and audio. Finish it and earn a completion card. IN YOUR LANGUAGE The texts stay in English. Definitions, notes, and example translations appear in your language: Japanese, Simplified Chinese, Spanish, Korean, Brazilian Portuguese, or French. THE LIBRARY A growing library of public-domain classics — start free with Alice's Adventures in Wonderland, then unlock the full collection. HONEST BY DESIGN - No account, no sign-in. Everything is stored on your device. - No ads, no tracking. - Book texts from Project Gutenberg and Standard Ebooks; narration from LibriVox — all public domain. Start free, and read your first classic to the very last page. Terms of Use (EULA): https://readfolio.co/terms Privacy Policy: https://readfolio.co/privacy

About

Igrot Kodesh

Features
Read full description

IGROT KODESH Translation of the Rebbe King Moshiach's letters Discover a unique collection of the Rebbe King Moshiach's letters in Russian. The Igrot Kodesh app allows you to conveniently read the translations of the letters, search for relevant topics, and find answers to a variety of life questions. App features: Complete translation of the Igrot Kodesh letters into Russian. Quick search by words and topics. Convenient navigation through volumes and pages. Bookmarks for saving important letters. Simple and modern interface. The app is designed for anyone who studies the teachings of the Lubavitcher Rebbe, is interested in Hasidism, and wants to have Igrot Kodesh always at hand. Study the letters of the Rebbe King Moshiach anytime and anywhere.

Screenshots

Folio4 screens
Igrot Kodesh4 screens

Verdict

The call

The clearest difference is in-app purchases: Igrot Kodesh at none against Folio's 3. Igrot Kodesh also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Folio sells 3 in-app purchases, starting at $4.99 per month. Igrot Kodesh asks for nothing beyond the download.

UpkeepUpdate frequency

Folio ships an update every 9 days, Igrot Kodesh every 11 days. The most recent releases landed on September 20, 2026 and September 9, 2026 respectively.

Scorecard3 real differences · 3 level
Folio versus Igrot Kodesh: the parameters behind the verdict, then further details
ParameterFolioIgrot Kodesh
PriceFreeFree
Update frequencyEvery 9 days — betterEvery 11 days
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size10 MB138 MB
Age rating4+4+
DeveloperTetsuhiro Nomuraisrael persiko

In-app purchases

3 purchases

Folio

Subscriptions2
  • Folio — Monthly7 Days trial$4.991 Month
  • Folio — Yearly7 Days trial$29.991 Year
One-time1
  • Lifetime — Full Library$49.99
None

Igrot Kodesh

No in-app purchases

Questions

Is Folio free?
Folio is free to download, with in-app purchases available.
Is Igrot Kodesh free?
Igrot Kodesh is free to download, with no in-app purchases.
Do Folio or Igrot Kodesh have ads?
Neither Folio nor Igrot Kodesh shows ads.
Which is updated more often, Folio or Igrot Kodesh?
Folio ships an update every 9 days, and Igrot Kodesh every 11 days. Most recently, Folio was updated on September 20, 2026 and Igrot Kodesh on September 9, 2026.

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