Semanty vs memory.wiki
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Semanty
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You're reading something in a foreign language and hit an unfamiliar word. What do you do? Switch apps, type it out, scroll through a wall of dictionary entries, then guess which meaning fits β by then the reading flow is long gone. And if it's a phrase or idiom, a traditional dictionary likely won't help at all. Semanty takes a different approach: select the word, and get exactly what it means right there in that sentence. No guessing through lists of definitions. And even if you only select one word of a phrase, Semanty recognizes the full expression and explains it. Read Without Interruption Supports EPUB, PDF, and web page imports. Open a book, a paper, an article β tap any word or phrase you don't understand. No switching apps, no breaking focus. Just keep reading. Remember in Sentences, Not Words Every word and sentence you look up is automatically saved to your notebook. There are no isolated word cards here β each entry is the original sentence you encountered. When reviewing, you're not asked to recall a definition out of context. You see the sentence and ask yourself: do I understand this? That familiar moment brings the meaning back naturally. Spaced Repetition Built on a spaced-repetition algorithm. What you know well shows up less. What you struggle with comes back sooner. Progress you can actually see. Safari Extension Not reading inside the app? The Safari extension gives you the same tap-to-understand experience right in your browser. Clean and Quiet No ads. No distractions. No social features. Just a calm space for reading and learning. By downloading this app, you agree to Appleβs standard Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
memory.wiki
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memory.wiki is a personal knowledge hub for the AI era β on the web. This is the companion app that goes with you. Capture a note, a URL, a photo, or a voice memo, and it lands in your hub. Read everything you've saved on your phone. Chat with your hub, or paste its URL into Claude, ChatGPT, Gemini, or any LLMs. CAPTURE β’ Write: quick markdown notes β’ URL: paste any link, the server fetches it and stores a clean markdown copy β’ Photo: attach images straight from camera or library β’ OCR: extract text from a photo β’ Voice: transcribe speech to text β’ Home-screen widget: Ask, Search, Paste, or Capture in one tap READ β’ Every document in your hub, sorted by date β’ The same markdown rendering as memory.wiki on the web β’ Group documents into Bundles by topic, project, or audience USE β’ Built-in chat over your hub, answers cite the source β’ Share a Bundle with any AI by pasting its URL β’ memory.wiki/@yourname, one URL for your whole hub, ready to hand to Claude, ChatGPT, Gemini, or any LLMs. memory.wiki is free to use during beta. The web hub stays the source of truth β every change syncs both ways. Privacy: notes, photos, audio, and email are tied to your account. None of it is used for tracking, advertising, or sold to third parties. See memory.wiki/privacy for details.
Screenshots
Verdict
The clearest difference is in-app purchases: memory.wiki at none against Semanty's 2. memory.wiki also leads on update cadence (every 5 days vs every 2 weeks). Semanty's advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Semanty sells 2 in-app purchases, starting at $2.99 per month. memory.wiki asks for nothing beyond the download.
Semanty ships an update every 2 weeks, memory.wiki every 5 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.
| Parameter | Semanty | memory.wiki |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Every 5 days β better |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad, Mac β better | iPhone |
| Requires iOS | 17.6 | 17.0 β better |
| Further details β not scored | ||
| Size | 16 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | η¬ ε΄ | Hyunsang Cho |
In-app purchases
Semanty
- Premium Membership (Monthly)$2.991 Month
- Premium Membership (Annual)$29.991 Year
memory.wiki
No in-app purchases









