Kase₄ vs PromptFolio
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
PromptFolio
Organize and track your AI image generation prompts and their results across various platforms. Save prompts, attach generated images, and compare outputs to build a searchable library of what works best for you. Enhance your prompts with smart suggestions and creative vocabulary.
- Save prompts with OCR extraction
- Attach generated images/videos
- Track platform, model, and settings
- Searchable visual library
- Lexicon suggestions for prompt improvement
- Creative vocabulary for descriptors
- Remix prompts for iteration
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Track prompts to results Your prompts live in 15 different places. PromptFolio connects them to the results they produced—across every platform, every variation. Stop losing your best work. You found a great prompt, tested it across three platforms, tweaked it a dozen times, and downloaded the results. Now you can't remember which version made which image—or even where you saved the original prompt. PromptFolio keeps the whole thread together. THE PROBLEM Screenshots in your camera roll. Notes scattered across apps. Discord history you'll never find again. That perfect prompt? Buried somewhere. And even if you find it, you can't remember which AI model produced which result—or what tweaks made the difference. You're experimenting across platforms, models, and tools. But there's no way to track what actually works. THE SOLUTION PromptFolio is a visual archive for AI image generation. Save prompts, attach the results they produced, and track which platform and settings delivered the best output. Over time, you build a searchable library of what works—organized, visual, and always with you. HOW IT WORKS - Save Your Work — Snap a screenshot, paste text, or type directly. OCR extracts prompts automatically. Takes seconds. - Experiment Across Platforms — Use your prompt in any AI image or video tool. Try variations. Compare results. - Track What Produced What — Attach generated images or videos from your Photos library. Record the platform, model, and settings. Rate your favorites. Add notes. - Build Your Library — Search by text, filter by model, browse visually. See at a glance which prompts delivered—and which approaches work best for you. SMART FEATURES Lexicon Suggestions — Already have a prompt? Turn on suggestions and PromptFolio highlights where professional terminology could improve it. Swap "dramatic shadows" for "chiaroscuro lighting" with a tap. Creative Vocabulary — Browse 70+ curated terms for lighting, composition, camera techniques, and artistic styles. Learn what creative descriptors actually look like, and add them to your prompts with a tap. Remix Without Risk — Want to experiment with a prompt without losing the original? Remix creates a linked variation so you can iterate freely and see how your prompts evolved. Compare Results — Attach multiple outputs to a single prompt. See exactly how Gemini interpreted it versus Flux versus Ideogram. Build real knowledge about what works where. WHAT PROMPTFOLIO IS *NOT* This app does not generate images. It doesn't connect to AI services or require API keys. It's purely a reference and organization tool—a place to collect the prompts and results you create elsewhere. DETAILS * Try free with up to 5 prompts, then unlock unlimited for $0.99—one time, forever * No subscription, no ads, no tracking * iCloud sync across iPhone and iPad * Images and videos reference your Photos library—no duplication, no extra storage * Works offline; syncs when connected * Built natively for iOS 26
Screenshots
Verdict
Kase₄ and PromptFolio both sit at 5.0 stars, but that hides the real split: 100% of PromptFolio's written reviews are positive against 0% of Kase₄'s. PromptFolio also leads on price (Free vs $9.99) and update cadence (every 2 days vs every 2 months). Kase₄'s advantage is iOS requirement (15.0 vs 18.0). On rating, ratings volume, ads and in-app purchases 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
PromptFolio is free to download; Kase₄ costs $9.99 up front. Kase₄ sells 4 one-off in-app purchases and PromptFolio sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Kase₄ against 5.0 for PromptFolio. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews are what separate them: 0% of Kase₄'s written reviews are positive against 100% of PromptFolio's.
Kase₄ ships an update every 2 months, PromptFolio every 2 days. Both last shipped on October 24, 2026.
| Parameter | Kase₄ | PromptFolio |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 17 MB | 77 MB |
| Age rating | 4+ | 4+ |
| Developer | Kenneth Wong | Michael Aaron |
Customer experience
Kase₄
PromptFolio
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
PromptFolio
- Unlimited Prompts$0.99









