Cryptaroo vs Inkstone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cryptaroo
This educational tool helps users understand basic encryption and decryption techniques. It's designed for analyzing ciphertext and practicing cryptanalysis on mobile devices.
- Encryption/Decryption techniques
- Ciphertext analysis
- Educational tool
- Mobile cryptanalysis
- Basic cryptography practice
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Cryptaroo is an educational, mobile cryptanalysis tool intended to be handy in doing basic encryption/decryption techniques or analyzing ciphertext.
Inkstone
Learn Chinese through classic stories and poems. Offers detailed explanations, translations, and audio pronunciations for every word and sentence. Supports offline reading and vocabulary saving.
- Classic Chinese stories and poems
- Modern Chinese retellings
- Audio narration with pinyin
- Tap-to-translate words
- Sentence-by-sentence translation
- Offline reading support
- Vocabulary saving
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Inkstone is a Chinese reading app built on the wisdom that China has passed down for generations. Most reading apps write their own material for learners. Inkstone gives you timeless Chinese wisdom: from fables and their idioms, Tang poems, to Li Bai, Zhuangzi, and the strange tales out of the Liaozhai. Every piece comes from a real ancient text, retold in clear modern Chinese at a level you can read. Poems are the exact original. Inkstone is built to guide you through every word, every phrase, and every sentence and its historical and philosophical context. A voice reads every line aloud and pinyin sits above every character. Tap any word to see what it means, hear it on its own, and read how the rest of the library uses it. Every sentence has an English translation a glance away. An "unpack the story" analysis is also paired with every story to provide further context and analysis. You never have to leave the page to look anything up, we take care of it all for you. WHAT YOU ACTUALLY READ 119 texts across fourteen shelves: fables, Tang poems, the philosophers, histories, strange tales, and street talk. We ship 50+ handpicked stories on the 1st of every month. Li Bai looking at moonlight and mistaking it for frost. Zhuangzi's frog at the bottom of the well, certain the sky is small. A scholar in a Tang ghost story who should not have opened that door. The poems are the original text, character for character, from 唐诗三百首 and 全唐诗. The prose is retold in clear modern Chinese at a level you can read, and the source is always named. You'll know when you are in 聊斋志异 and when you are in 搜神记. This curated collection consists of stories that lasted two thousand years. They're worth reading and analyzing, over and over again. WHY THEY LASTED Every story comes with an interpretation, what it means, which single word carries the whole thing, what scholars have argued about for centuries, and who argued it. "Night Thoughts" is twenty characters, yet it has a multitude of layers of meaning. We explain them: why 疑 is the hinge, why 霜 puts autumn and age into a poem that refers to neither, and why the most famous line in Chinese poetry may not be the one Li Bai wrote. HOW WE GUIDE YOUR READING EXPERIENCE • A female and male voice for every story. Each word and sentence translated and lighting up as you progress through the story. • Slow the reading down, loop a line, or step through a story sentence by sentence • Every word has its own recording in both voices, so you can hear individual words and phrases alone • Beautiful background music to accompany your reading • Four levels of pinyin, including a smart level that marks only the words above your grade • Tap a word for its definitions, its other readings, and how often this book uses it • An English translation for every sentence without having you leave the story • Simplified and traditional characters supported • Save a word and it comes back before you forget it • Works offline. The whole library is stored locally on your phone. Audio is fetched when you open a story. • No ads, no account, and no sign-up. Nothing you read leaves your device LEARNING & PRACTICE Our learning system is based on SRS. Save a word while you read and it'll come back on a schedule optimized for you to master its meaning quickly. A STUDY OF YOUR OWN Inkstone is built as a scholar's studio. You carve your own name seal, and it stamps the spine of every book you finish. Curios collect on the shelf as you read. The window beside your desk follows the hour of your real day. Everything grows as you collect and finish more stories. Download Inkstone and start reading today. The annual plan is $59.99 per year and opens with a 7-day free trial you can cancel any time before it ends. Monthly is $9.99 and starts billing straight away. Prices in your own currency are shown in the app before you confirm anything. Terms: https://getinkstone.app/terms Privacy: https://getinkstone.app/privacy
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Verdict
The clearest difference is review sentiment: Cryptaroo at 100% against Inkstone's 0%. Cryptaroo also leads on rating (5.0 vs 4.0) and in-app purchases (none vs 2). Inkstone's advantage is update cadence (every 3 days vs every 20 months). On price, ratings volume, ads and monetization model 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. Inkstone sells 2 in-app purchases, starting at $9.99 per month. Cryptaroo asks for nothing beyond the download.
Cryptaroo holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 100% of Cryptaroo's written reviews are positive against 0% of Inkstone's.
Cryptaroo ships an update every 20 months, Inkstone every 3 days. The most recent releases landed on September 17, 2026 and September 30, 2026 respectively.
| Parameter | Cryptaroo | Inkstone |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.0 (2 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 | 2 |
| Update frequency | Every 20 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 6.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 2 MB | 147 MB |
| Age rating | 4+ | 12+ |
| Developer | Joey Wessel | Conder Shou |
Customer experience
Cryptaroo
Inkstone
In-app purchases
Cryptaroo
No in-app purchases
Inkstone
- Inkstone Monthly$9.991 Month
- Inkstone Annual7 Days trial$59.991 Year









