Comparison

YiKe vs Knowledge Base

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

Head to head
About

YiKe

This app offers a simple way to record daily moments with text, photos, and videos. It features automatic saving and allows easy editing of past entries. Track your activity and revisit memories effortlessly.

Highlights
  • Local data storage
  • Text, photo, and video entries
  • Edit past entries
  • Automatic draft saving
  • Activity statistics
  • Date-based entry recall
Features
Read full description

YiKe is a lightweight life journaling app. No complicated layouts — just open and write. Text, photos, videos, recordings, locations and more can all live in one entry, and you can scroll back through your timeline like a feed. You can even add notes to an entry later, whenever a new thought comes to mind. 【Capture Every Form of Memory】 · Text diaries, quick notes, random thoughts, and moods · Photos, videos, recordings, locations, and tags — all in one entry · Speech recognition: just speak, and it's recorded · Freely manage your recording tools — reorder, hide, and personalize 【Find It, and It Matters】 · Search and tag system with time and tag filters — find any entry in seconds · Tag management, Library, Footprints, and Widgets keep your memories organized 【Turn Entries into Art】 · Generate beautiful posters in one tap, with adjustable background colors and text sizes · Export your entries as folders or spreadsheets — take them anywhere, anytime 【Local Storage, Private by Design】 · Entries stay on your device by default — works offline · Face ID lock keeps your diary yours alone · Optional iCloud sync across all your devices Start today — record every moment that's yours. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Knowledge Base

Features
Read full description

■ Knowledge that grows on its own Just save the articles you find interesting — AI quietly compiles them into your own encyclopedia in the background. Knowledge Base is the gentle second brain that helps you graduate from "read once, forget forever." ■ Save from anywhere, in one step - Save articles directly from Safari or any app's Share Sheet - The + button also lets you add URLs, text, PDFs, photos (OCR), and audio (transcription) - Non-English or non-Japanese content is automatically translated into your chosen language before it's organized Saving finishes instantly — the heavy lifting happens in the background, so you're never kept waiting. ■ AI organizes key points by topic AI automatically creates and updates "concept pages" — your own personal wiki — across multiple articles. Open the Knowledge tab and topic summaries are always shown up to date. - The most important points come first, no tapping required - Related concepts link to each other automatically, so your knowledge connects - Every page can always be traced back to its original article ■ Chat that answers with citations "What did that article actually say again?" Ask the AI Chat. - Answers are generated only from the articles you've saved - Tap a citation number to jump straight to the source article - When general knowledge is used to fill a gap, it's always labeled clearly ■ Fix AI's mistakes in one sentence - Tap "Correct" on any article's detail page and describe the fix in plain language (e.g. "Claude Code is being misread as something else") - Unwanted concepts or tags can be edited, merged, or hidden anytime You always stay in control. ■ Privacy by design - All AI processing runs entirely on-device via Apple Intelligence - No ads, no tracking, zero data sent to external servers - iCloud sync uses only your own private database ■ A calm, considered aesthetic A palette of sumi ink and washi paper, elegant Mincho headlines, and breathing negative space inspired by seigaiha waves. Every time you open it, it feels quiet and refined. ■ Languages Knowledge Base supports 4 interface languages: English, Japanese, Simplified Chinese, and Traditional Chinese. AI-generated summaries, concept pages, and chat replies follow the same language, chosen automatically from your device's language on first launch (you can change it anytime in Settings > Generation Language). ■ Requirements (important) - AI features (automatic concept-page generation, AI Chat, summaries, translation, auto-tagging) require an iPhone that supports Apple Intelligence - Please turn on Apple Intelligence in Settings before use - Even without Apple Intelligence, you can still save, search, browse, and organize tags for your articles Now, put your iPhone's AI to full use and turn everything you read into knowledge that's truly your own.

Screenshots

YiKe4 screens
Knowledge Base4 screens

Verdict

The call

The clearest difference is in-app purchases: Knowledge Base at none against YiKe's 3. YiKe's advantage is update cadence (every 4 days vs weekly) and iOS requirement (17.0 vs 26.4). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. YiKe sells 3 in-app purchases, starting at $0.99 per month. Knowledge Base asks for nothing beyond the download.

UpkeepUpdate frequency

YiKe ships an update every 4 days, Knowledge Base weekly. The most recent releases landed on October 3, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 7 level
YiKe versus Knowledge Base: the parameters behind the verdict, then further details
ParameterYiKeKnowledge Base
PriceFreeFree
Rating5.0 (7 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 4 days — betterWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better26.4
Further details — not scored
Size44 MB9 MB
Age rating4+4+
Developer昱琨 程CHANG CHIA-WEI

In-app purchases

3 purchases

YiKe

Subscriptions2
  • YiKe PRO Monthly$0.991 Month
  • YiKe PRO Annual$2.991 Year
One-time1
  • YiKe PRO Lifetime$4.99
None

Knowledge Base

No in-app purchases

Questions

Is YiKe free?
YiKe is free to download, with in-app purchases available.
Is Knowledge Base free?
Knowledge Base is free to download, with no in-app purchases.
Do YiKe or Knowledge Base have ads?
Neither YiKe nor Knowledge Base shows ads.
Which is updated more often, YiKe or Knowledge Base?
YiKe ships an update every 4 days, and Knowledge Base weekly. Most recently, YiKe was updated on October 3, 2026 and Knowledge Base on September 21, 2026.

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