Firevault vs Knowledge Base
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Firevault
Organize and manage diverse personal information, from collections and hobbies to business data. Features hierarchical indexing, customizable templates, and PDF export for permanent preservation. Seamless iCloud synchronization and collaboration options are available.
- Personal database management
- Hierarchical indexing
- Customizable templates
- PDF export
- iCloud synchronization
- File sharing and collaboration
Read full descriptionHide full description
Manage Everything Close to You Beautifully and Smartly Firevault is a personal database app that anyone can easily use. You can consolidate and manage all kinds of information in one place, from important collections and hobby records to recipes, travel notes, and business customers, inventory, and sales. Instantly access the information you need with hierarchical indexing. You can freely sort, group, and switch aggregation targets of data. By overseeing and analyzing from multiple perspectives, you can gain new inspirations. With a clean, simple design, beautifully display your important items and memories. Additionally, you can permanently preserve valuable pages using the PDF export feature. All data is saved as files, making duplication, backup, and sharing easy. Of course, you can also organize with folders and tags. Seamlessly synchronize with iCloud Drive, so updates made on your iPhone are instantly reflected on your iPad and Mac. By utilizing the file sharing feature, you can collaborate with team members or publish files as read-only for public access. Always run smoothly and comfortably. It maintains stable performance even as data grows. No worries about it slowing down as you use it. We offer over 50 templates that you can start using immediately. Of course, customization is at your fingertips. Create your own ideal data space with Firevault. - Music - Video - Video Games - Books - Comics - Fashion - Shoes - Bags - Cosmetics - Dishes - Spot - Shop - Coins - Antiques - Items - Reading - Watching Movies - Events - Spectating - Concerts - Travel - Outing - Driving - Fishing - Golfing - Eating Out - Cooking - Karaoke - Contacts - Diary - Photo Diary - Baby Journal - Observations - Expenses - Recipes - Meals - Treasures - Groceries - Medicines - Stockpile - Furniture - Outfits - Customers - Business Cards - Documents - Products - Goods - Inventory - Sales - Purchases - Works - Members - Reservations Firevault Premium Filevault is free to download and use. When you upgrade to Filevault Premium, the following additional features are enabled: - Unlimited Items: You can unlimited register the item. In the free plan, you can register up to 400 items per library. - Advanced Search: You can search by specifying fields and operators. In the free plan, only supports text search. - Advanced Summary: The aggregate value (total, average, minimum, maximum, range) of the specified field can be displayed. In the free plan, only supports the number of items. - Import (Export): You can load CSV format data using the import feature. Also, by editing the exported data and importing it, it is possible to update the data in batch. In the free plan, only supports export feature. - Ad Free: No ads will be displayed. In the free plan, ads are displayed when adding items.
Knowledge Base
Read full descriptionHide 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
Verdict
The clearest difference is in-app purchases: Knowledge Base at none against Firevault's 2. Knowledge Base also leads on ads (none vs shown). Firevault's advantage is device support (3 vs 1) and iOS requirement (18.2 vs 26.4). On price and update cadence 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. Firevault sells 2 in-app purchases, starting at $0.99 per month. Knowledge Base asks for nothing beyond the download.
Firevault ships an update every 2 weeks, Knowledge Base weekly. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.
| Parameter | Firevault | Knowledge Base |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (5 ratings) — better | — |
| Positive reviews | 47.2% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 18.2 — better | 26.4 |
| Further details — not scored | ||
| Size | 43 MB | 9 MB |
| Age rating | 17+ | 4+ |
| Developer | GACHANET | CHANG CHIA-WEI |
In-app purchases
Firevault
- Firevault Premium Monthly Plan1 Month trial$0.991 Month
- Firevault Premium Yearly Plan1 Month trial$10.491 Year
Knowledge Base
No in-app purchases









