Luban Calculator vs DevHabit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Luban Calculator
A polished calculator app offering advanced features like historical records, notes, and voice broadcasts. Easily share your calculations with others. Enhanced with AI LLM voice input for smarter calculations.
- AI LLM Voice Input
- Historical Records
- Notes
- Voice Broadcasts
- Calculation Sharing
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Luban Calculator is a carefully polished calculator that supports historical records, notes, voice broadcasts, calculation sharing, and other powerful enhancements Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
DevHabit
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Make Change a Habit, Make Persistence Simple DevHabit is a professional habit tracking app that helps you build good habits and break bad ones using science-backed methods for personal growth. Why Choose DevHabit? • Dual Management - Unique good/bad habit classification system for better psychological experience • Home Screen Widgets - 3 widget sizes for instant progress check without opening the app • Smart Analytics - Streak counts, completion rates, trend analysis to witness daily growth • Achievement System - Unlock exclusive badges to stay motivated • Personalized Reminders - Gentle reminders for good habits, warning alerts for bad ones Core Features Habit Management 24 beautiful icons to personalize your habits Separate tracking for good and bad habits Custom reminder times and frequencies Progress Tracking One-tap check-in with intuitive interface Calendar view for historical records Streak counts and cumulative statistics Home Screen Widgets Small: Display 2 important habits Medium: Show 4 habits with progress Large: Complete dashboard view Achievement System 8 carefully designed achievement badges Milestone rewards for consistency Unlock Pro feature previews Pro Features Upgrade to Pro for powerful advanced features: • Unlimited habits (Free version limited to 3) • Advanced analytics and trend charts • iCloud auto-sync - never lose your data • All widget sizes and styles • 100+ professional habit templates • Data export (PDF/Excel formats) • Custom themes and personalization • Priority customer support Special Offers • 7-day free trial of all Pro features • 50% off first month for new users • Annual subscription saves 28% vs monthly Let DevHabit accompany your growth journey. Start today and make change a habit! Privacy Policy: https://gist.github.com/mokong/a2b2a5ba51df445acb8f1c47b5ebb08e/raw Terms of Use: https://gist.github.com/mokong/4cb5c50f435fcf6b689478051fad47c1/raw
Screenshots
Verdict
The clearest difference is update cadence: Luban Calculator at monthly against DevHabit's every 4 months. 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
Both are free to download. Luban Calculator sells 1 in-app purchase, starting at $0.99 per month and DevHabit sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Luban Calculator ships an update monthly, DevHabit every 4 months. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.
| Parameter | Luban Calculator | DevHabit |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 28 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 斌 王 | 珍珍 张 |
In-app purchases
Luban Calculator
- Luban Member Ship - Monthly$0.991 Month
DevHabit
- Pro Monthly$2.991 Month
- Pro Yearly (Best Value)$19.991 Year
- Pro Lifetime$39.99








