Kase₄ vs Driftnote
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kase₄
This app allows you to create and manage your own personal databases on your device. It offers flexibility in designing structures to track anything important, with features like inter-linked data, full-text search, and various field types. Your data remains private and accessible offline.
- Design custom databases
- Inter-linked data
- Full-text search with NLP
- Multiple field types
- Markdown support
- Passcode and biometric lock
- Data visualization (Formatters)
- OCR for text recognition
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Kase exists because it should. There should be a database app that can go anywhere with you. It should be: • Simple — Using it should be easy and intuitive, • Flexible — Once familiar with the basics, you can design any database to track anything important to you, and • Relational — Inter-linked data is an order of magnitude more useful. Plus, you don't want to repeat yourself. Additionally, it should be: • Personal — You should not need to worry about who can peek into your data, and • Always Available — High-speed wireless network should *not* be a prerequisite for accessing your own data. Structured data at your fingertips. Something like that didn't exist, so I started creating Kase in 2014. Basic Concepts: • Your Kase contains Boxes. • Each Box stores Decks that can relate to each other. • A Deck collects similarly structured Cards. • And a Card is where you put data Entries. Features: • Pick, assign, and organize with Categories, Tags, and Marks. • Search by name, notes, full text, or keywords: Full-text indexing with Natural Language Processing. • Highlight any Box, Deck, Card, Entry, or Keyword. • Deck definitions support inheritance! • Field types include Text, Number (with Unit), Money (with Currency), Date/Time (with Time Zone), Choice, Boolean, Link, Picture, and Document. - complete with multi-level auto-conversion • Write in Markdown and see rich formatted text. • Box can be locked with a passcode, and unlocked with Face ID or Touch ID. • Formatters (Fx) to visualize data in different ways without altering the data one bit. e.g. Unit Converter, NameMapper, WordScrambler, ICU Transformers... • Side-by-Side: Compare Cards easily by displaying in columns. • On-device Text Recognitions (OCR) for multiple languages. • Import/Export in CSV, JSON, or KASE. • Complete Backup & Restore. • iPad Multitasking support: Split View, Slide Over, etc. • Very customizable UI with custom locales What Kase Can't Do: - Cloud sync is not done yet (stay tuned...) What Kase Can Do: > From Data to Wisdom > Data ▹ Information ▹ Knowledge ▹ Wisdom 1. Store Data — the objective truths. 2. Organize Information — to reflect circumstances and current condition. 3. Systematically retrieve Knowledge — utilized for decision-making. 4. And that hopefully enables you to grasp Wisdom, comprehend insights, and ultimately create value. There are databases that belong to the Big Guys. The rest of them should stay personal. By now, you should realize how valuable your data is. So why give it away? Kase keeps your data yours. See www.wisd.com/kase for more details. Terms of Use (EULA): https://www.wisd.com/kase/eula
Driftnote
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Capture in a tap. Find it instantly. Driftnote is the note app for people who capture fast but lose track of what they saved. Jot a thought, save a link, record a voice note, snap a photo — no folders, no setup. Then just ask: "what did the dentist say?" and get a real answer, with the exact notes it came from. All on your device — nothing ever leaves your phone. WHY DRIFTNOTE • One-tap capture, from anywhere — text, voice, drawing, link, document, photo, location • Ask your notes in plain language and get a cited answer, not a list of 200 results • Find by meaning, not just keywords — powered by on-device AI (Apple Intelligence) • 100% private — your notes never leave your device • Syncs across your devices with iCloud DRIFTNOTE PLUS Driftnote Plus is an auto-renewable subscription that unlocks unlimited ask-your-notes and recall across your entire history. Free to use without it: unlimited capture, keyword search, and a taste of AI recall every month. • Monthly, annual (with a 7-day free trial), or a one-time lifetime purchase • Payment is charged to your Apple Account at confirmation of purchase • Subscriptions renew automatically unless turned off at least 24 hours before the end of the period; manage or cancel anytime in your Apple Account settings Terms of Use (EULA): https://codeful.notion.site/Terms-of-Use-2d74dae30045818daa5fd6cc30cbb20f Privacy Policy: https://codeful.notion.site/Privacy-Policy-2d74dae30045813d9bcfff4f56979e6a Made by an indie developer.
Screenshots
Verdict
The clearest difference is price: Driftnote at Free against Kase₄'s $9.99. Driftnote also leads on update cadence (weekly vs every 2 months). Kase₄'s advantage is iOS requirement (15.0 vs 18.6). On ads, in-app purchases 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
Driftnote is free to download; Kase₄ costs $9.99 up front. Kase₄ sells 4 one-off in-app purchases and Driftnote sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
Kase₄ ships an update every 2 months, Driftnote weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Kase₄ | Driftnote |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 17 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Kenneth Wong | Soyeon Noh |
In-app purchases
Kase₄
- Tip: Dollar$1.00
- Tip: Coffee$2.00
- Tip: Coffee, CA$4.00
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- Tip: Caffè Mocha$5.00
Driftnote
- Sidepath Plus (Monthly)$3.991 Month
- Sidepath Plus (Yearly)$29.991 Year









