Decodey vs Jargon
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Decodey
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Ever come across a word like "cache", "VPN", "algorithm" or "chatbot" and just nodded along without really knowing what it meant? Decodey is for you. One new tech word, every day โ explained in plain English that anyone can understand. No background in technology needed. Every word comes with: โข A plain-English meaning you'll actually remember โข A real-life example showing it in context โข A "Did you know?" fact to make it stick โข Pronunciation help and what abbreviations stand for FEATURES โข A new word every day โ 365 in total, a full year of learning โข Practice mode: hide the meaning and test yourself first โข Browse and search all 365 words by topic or difficulty level โข Save your favourites and build a daily learning streak โข Works fully offline โ no internet needed, your data stays on your device โข A gentle daily reminder at whatever time suits you best From the internet and online safety to AI, social media and everyday computing โ Decodey turns confusing tech into something friendly, one small word at a time. Perfect for students, professionals, parents, or anyone who wants to feel a little more at home with technology.
Jargon
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Jargon is a fully offline reader for the Jargon File โ the hacker culture dictionary that gave the word "hacker" its original meaning, decades before it came to mean "cracker." Compiled by Eric S. Raymond and Guy L. Steele and continued today as a community project, it's the closest thing hacking has to an etymology. Over 2,300 entries, all bundled in the app: * Browse alphabetically with a fast-scroll index * Instant search across terms and definitions, with your recent lookups kept handy * Tap any cross-referenced term to jump straight to it * Share or copy any definition * Favorite entries for quick access later * "Surprise me" with a random entry โ or long-press the app icon for one * A Word of the Day widget for the Home Screen and Lock Screen * Find entries straight from Spotlight, or ask Siri to look up a term * On iPad, browse the list and read entries side by side Zero permissions. Zero network access, ever โ the dictionary ships inside the app, favorites stay on your device, nothing is ever sent anywhere. No accounts, no ads, no analytics. Dictionary content is CC BY-SA 4.0 from the Jargon File community edition (github.com/agiacalone/jargonfile). App source is GPL-3.0.
Screenshots
Verdict
The clearest difference is iOS requirement: Decodey at 15.1 against Jargon's 17.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Decodey | Jargon |
|---|---|---|
| Price | Free | Free |
| Update frequency | โ | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 32 MB | 2 MB |
| Age rating | 4+ | 12+ |
| Developer | Kritesh Singh | Mathew Brown |
In-app purchases
Decodey
No in-app purchases
Jargon
No in-app purchases









