LIT Light Meter vs Calculator Abacus Suite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LIT Light Meter
This companion app allows users to remotely control and save data from the LIT DUO 1 light meter. It enables firmware updates via Bluetooth, enhancing the functionality of the connected device.
- Remote control for LIT DUO 1
- Firmware updates via Bluetooth
- Data saving capabilities
- Companion app functionality
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Companion app for LIT DUO 1 light meter. Key features: – Firmware update via Bluetooth – Remote control Learn more about LIT DUO 1: http://lit-systems.com
Calculator Abacus Suite
This comprehensive suite offers 74 specialized calculators for finance, health, math, engineering, and everyday tasks. It prioritizes privacy by performing all calculations locally on your device with no data collection.
- 74 specialized calculators
- Financial planning tools
- Health and fitness trackers
- Advanced math functions
- Engineering tools
- Unit and IP subnet conversion
- Privacy-first local calculations
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### The Abacus Calculator Suite - Your Complete Calculator Suite Transform your iPhone and iPad into a powerful, professional calculator suite with 74 specialized calculators designed for everyday tasks, complex calculations, and professional work. Built with iOS 26's stunning Liquid Glass design language, The Abacus combines beauty with functionality. ### 74 Professional Calculators ** Financial (26 calculators)** Plan your financial future with comprehensive tools: Loan/EMI Calculator, Mortgage Calculator with amortization schedules, Compound Interest, Savings Goal Planner, Investment Return Analyzer, Retirement Planner, Tax Calculator (Income & Sales), Tip Calculator, Discount Calculator, Margin Calculator, Break-Even Analysis, ROI Calculator, Car Loan Calculator, Down Payment Calculator, Lease vs Buy Calculator, Amortization Schedule, Debt Payoff Planner, Inflation Calculator, Present Value, Future Value, Currency Converter, SIP Calculator, Refinance Calculator, and Markup Calculator. ** Fitness & Health (10 calculators)** Track your health and fitness goals with medically-accurate calculators: BMI Calculator, BMR (Basal Metabolic Rate), Calorie Calculator, Body Fat Percentage, Ideal Weight Calculator, Heart Rate Zones, Protein Intake Calculator, TDEE (Total Daily Energy Expenditure), Macro Calculator, and Pregnancy Due Date Calculator. All health calculators include peer-reviewed medical citations from WHO, CDC, and medical journals for accuracy and compliance. ** Math (11 calculators)** Master mathematics with powerful tools: Percentage Calculator, Fraction Calculator, Ratio Calculator, Average Calculator, Standard Deviation, Quadratic Equation Solver, Prime Number Checker, GCF/LCM Calculator, Standard Calculator (Apple-inspired button interface), Programmer Calculator (Binary/Octal/Decimal/Hex with bitwise operations), and Scientific Calculator (Trigonometry, logarithms, and advanced functions). **Engineering (17 calculators)** Professional engineering tools for students and professionals: Unit Converter (comprehensive conversions), Land Measurement, Ohm's Law Calculator, Power Calculator, Frequency Calculator, Wavelength Calculator, Resistance Calculator, Binary Operations, Number System Converter, IP Subnet Calculator, Color Converter, Cutlist Optimizer with AI-powered optimization and DXF/PDF export, Room Size Calculator, Floor Area Calculator, Wall Area Calculator, Paint Calculator, and Tile Calculator. ** Other (10 calculators)** Essential everyday tools: Age Calculator, Date Difference Calculator, Timezone Converter, GPA Calculator, Password Generator, Grade Calculator, Trip Cost Calculator, Solar Panel Calculator with 25-year ROI analysis, Wind Energy Calculator, and Fuel Efficiency Calculator. ### Privacy-First Architecture Your privacy matters. The Abacus: - Performs ALL calculations locally on your device - Collects ZERO user data - Sends NO analytics or tracking information - Requires NO internet connection for calculations - All data encrypted with iOS Data Protection - Optional biometric authentication for app access
Screenshots
Verdict
The clearest difference is rating: Calculator Abacus Suite at 5.0 against LIT Light Meter's 4.6. LIT Light Meter's advantage is device support (5 vs 2) and iOS requirement (15.0 vs 26.0). On price, review sentiment, ratings volume and update cadence 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. Neither carries in-app purchases, so what you see is what you pay.
Calculator Abacus Suite holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
LIT Light Meter ships an update every 2 weeks, Calculator Abacus Suite every 11 days. The most recent releases landed on October 25, 2026 and October 22, 2026 respectively.
| Parameter | LIT Light Meter | Calculator Abacus Suite |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (5 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 5 — better | 2 |
| Update frequency | Every 2 weeks | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Mac, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 78 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Lit Systems AB | Clever Algorithm |
Customer experience
LIT Light Meter
Calculator Abacus Suite
In-app purchases
LIT Light Meter
No in-app purchases
Calculator Abacus Suite
No in-app purchases
Questions
Is LIT Light Meter free?
Is Calculator Abacus Suite free?
Which has better reviews, LIT Light Meter or Calculator Abacus Suite?
Do LIT Light Meter or Calculator Abacus Suite have ads?
Which is updated more often, LIT Light Meter or Calculator Abacus Suite?
Other comparisons
