Lupin meter vs SlipBox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lupin meter
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1.簡易輝度画像測定器 2.測定した輝度画像から、以下の数値を分析・算出 2.1人間が空間を見た時に感じる明るさの印象 明るさ感 2.2測定した範囲内の平均輝度 2.3輝度のばらつき 2.4最小輝度 2.5最大輝度 3.測定した輝度画像の一覧機能と呼び出し機能。 4.撮影画面 5.撮影画像のタグ付け機能 6.メールによる転送機能 The English site is following. https://www.endo-lighting.co.jp/lupin/en.html The site of privacy policy in the Japanese is following. http://www.endo-lighting.co.jp/privacy/ ※どの端末でもご利用いただけますが、測定値には端末毎にバラツキがございます。あらかじめご了承のほど、宜しくお願い致します。 Please be advised that this apps often have gotten a different luminance value each devices.
SlipBox
This app helps you build a structured web of knowledge using the Zettelkasten method. Its minimalist design and continuous scrolling interface encourage active recall and pattern recognition for deep cognitive work. Your notes are stored locally for privacy.
- Continuous scroll interface
- Zettelkasten method implementation
- Intentional tagging system
- Minimalist design
- Privacy-first, local storage
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Stop burying your ideas in digital graveyards and start building a structured web of knowledge with the original Zettelkasten method. SlipBox is a minimalist note-taking tool designed for those who value intentionality over automation. By digitizing Niklas Luhmann’s legendary paper-and-pen system, SlipBox replaces complex folders and confusing backlinks with a unique, continuous scrolling interface. This design forces you to physically move through your ideas, facilitating the active recall and spontaneous pattern recognition necessary for deep cognitive work. Key Features for Your Second Brain: Continuous Scroll Interface View your notes in a single, fluid stream to rediscover forgotten insights and spark new ideas. The Luhmann Workflow A digital implementation of the Zettelkasten method that respects the principle of atomicity (one idea per card). Intentional Tagging Organize notes manually to build deep mental maps and avoid the "out of sight, out of mind" trap of folders. Minimalist Design No steep learning curves or bloated features, just you and your knowledge. Privacy-First & Local Your data stays on your device, ensuring your private thoughts remain truly private. Build a knowledge system that grows with you. Turn your fleeting notes into a structured, permanent repository of thought with SlipBox.
Screenshots
Verdict
The clearest difference is price: Lupin meter at Free against SlipBox's $0.99. Lupin meter also leads on iOS requirement (8.0 vs 18.2). SlipBox's advantage is update cadence (every 3 weeks vs every 3 months). 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
Lupin meter is free to download; SlipBox costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Lupin meter ships an update every 3 months, SlipBox every 3 weeks. The most recent releases landed on October 26, 2026 and November 4, 2026 respectively.
| Parameter | Lupin meter | SlipBox |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | — | 3.3 (4 ratings) — better |
| Positive reviews | — | 90.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 6 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Endo Lighting Corp. | Ozlem AKBUDAK |
In-app purchases
Lupin meter
No in-app purchases
SlipBox
No in-app purchases









