Comparison

Lupin meter vs Due Pal

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

Head to head
About

Lupin meter

Read full description

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.

About

Due Pal

This app provides a persistent visual countdown to your next scheduled event, designed to combat time blindness for individuals with ADHD. It offers customizable visual styles and smart reminders to help manage transitions between tasks and appointments.

Highlights
  • Persistent visual countdown
  • Always-visible on Lock Screen/Dynamic Island
  • Two visual styles: Flip Clock & Digital
  • Smart transition reminders
  • Flexible daily scheduling
  • High-contrast readable design
Features
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If you have ADHD, you know the feeling: you glance at the clock, it says 2:15. You look again — it's 4:47. Two and a half hours vanished. Your meeting started 17 minutes ago. This is time blindness. It isn't laziness or carelessness — your brain genuinely doesn't feel time passing. A clock tells you what time it is. DuePal shows you how much time you have left. HOW IT WORKS Set the anchor points of your day once: 9:30 — Stand-up 12:00 — Lunch 14:00 — Focus block 17:30 — Wrap up 18:30 — Pick up kids DuePal counts down to the next one, live. When it arrives, the countdown hands over to the next on its own — no timers to restart, no alarms to set again. Add a start time and a progress bar fills as the window runs out. ALWAYS IN SIGHT • Lock Screen Live Activity and Dynamic Island, with a Skip button • Home Screen and Lock Screen widgets in every size • Apple Watch app with complications • Control Center control, Siri and Shortcuts You never have to remember to check. The countdown is already there. A HEADS-UP BEFORE EVERY SWITCH For ADHD brains the hard part isn't the task — it's switching. Get a heads-up minutes before each due, then a reminder when it arrives. On iOS 26 and later, dues can ring as real system alarms, even in Silent mode. WORKDAYS AND PUBLIC HOLIDAYS Weekday dues skip your country's public holidays automatically — 20 countries and regions supported, including make-up workdays in mainland China and Taiwan. Skip a single day off with one tap. COUNTDOWNS FOR THE DAYS AHEAD Weekend, payday, the next public holiday, birthdays, trips and exams. Pin the one you care about to the top and to your widgets. MADE TO BE READ AT A GLANCE Six clock styles, from a flip clock to a progress ring, and twelve color themes. High contrast, large numbers, no clutter — you should know how much time you have in under a second. QUICK TO SET UP Start from routine templates or a quick 25-minute timer. iCloud keeps your dues the same on iPhone and iPad. WHO DUEPAL IS FOR Adults with ADHD who lose track of time between meetings and tasks. Students who miss class changes and study blocks. Parents juggling school pickup, meals and bedtime. Anyone who has set a 15-minute timer and been shocked when it went off "already." WHY NOT A REGULAR TIMER A timer counts a set length, stops at zero, and has to be started again every time. DuePal counts to the times of your whole day, repeats on workdays, knows your holidays and moves on to the next thing by itself. FREE AND PREMIUM DuePal is free to download. The free version includes one due, two countdowns of your own, the Live Activity, Dynamic Island and the Current Due widget. DuePal Premium adds unlimited dues and countdowns, Ring as Alarm, public-holiday skipping, the Apple Watch app and complications, the Countdowns widget, and every clock style and color theme. Choose a weekly or yearly subscription (the yearly plan starts with a 3-day free trial) or a one-time lifetime purchase. If you bought DuePal before it was free, Premium is already yours. No ads, no account. Privacy: https://elevenapril.com/privacy Terms of Use: https://elevenapril.com/terms

Screenshots

Lupin meter4 screens
Due Pal4 screens

Verdict

The call

The clearest difference is update cadence: Due Pal at every 3 weeks against Lupin meter's every 3 months. Lupin meter's advantage is iOS requirement (8.0 vs 18.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Lupin meter ships an update every 3 months, Due Pal every 3 weeks. The most recent releases landed on October 11, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 8 level
Lupin meter versus Due Pal: the parameters behind the verdict, then further details
ParameterLupin meterDue Pal
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—90.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS8.0 — better18.0
Further details — not scored
Size6 MB17 MB
Age rating4+4+
DeveloperEndo Lighting Corp.帅 陈

In-app purchases

None

Lupin meter

No in-app purchases

None

Due Pal

No in-app purchases

Questions

Is Lupin meter free?
Lupin meter is free to download, with no in-app purchases.
Is Due Pal free?
Due Pal is free to download, with no in-app purchases.
Do Lupin meter or Due Pal have ads?
Neither Lupin meter nor Due Pal shows ads.
Which is updated more often, Lupin meter or Due Pal?
Lupin meter ships an update every 3 months, and Due Pal every 3 weeks. Most recently, Lupin meter was updated on October 11, 2026 and Due Pal on October 2, 2026.

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