Battery Calculator vs LEDzFun
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Battery Calculator
Calculate estimated battery run time based on capacity and device consumption. Determine battery capacity from stored energy and voltage, and calculate required battery ratings based on load and duration.
- Battery life calculator
- Battery capacity calculator
- Battery size calculator
- Estimate run time
- Calculate battery capacity in Wh
- Calculate required battery rating in Ah
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Battery calculator include battery life calculator, battery capacity calculator and battery size calculator. battery life calculator uses battery capacity and device consumption to calculate estimated run time of battery life. battery size calculator calculates battery capacity, measured in amp hours based on energy stored in a battery, expressed in watt-hours and the voltage of the battery. battery size calculator calculates required the battery rating in ampere hour based on load, duration and discharge level. Formula: Battery Life Calc battery life = BC/DC * (BE/100) where: BC - capacity of your battery, measured in ampere hours [Ah] or miliampere hours [mAh]. This value is printed on your battery. DC - average current draw from electronic device, expressed in amperes [A] or miliampere [mA]. BE - The battery efficiency is the ratio of the energy retrieved from the battery, to the energy provided to the battery, when coming back to the same SOC state. Lithium-ion stays close to 90%. Lead acid batteries are lower at about 90%, and nickel-based batteries are closer to 80%. Battery Capacity Calc E = V * Q where: E - energy stored in a battery, expressed in watt-hours [Wh] or kilowatt-hours [kWh]. V - voltage of the battery. Q - battery capacity, measured in ampere hours [Ah] or miliampere hours [mAh]. Battery Size Calc Current calculation: If the load is specified in watt, the current is calculated as: I = P * V where: I - current in ampere. P - power in watts. V - voltage in volts. Lithium-ion batteries size = (100*I*t) / (100–Q) Lead-acid battery size = (100*I*t) / ((100−Q) * (0.02*t+0.6)) where: I - current in ampere. t - duration in hours. Q - required remaining charge in percentage. A battery rated for 100 Amp hours will provide 5 Amps for 20 Hours. If it is a 12 volt battery, multiply 100 by 12 and the battery will provide 1200 Watt Hours. divide the result by 1000 and the battery can supply 1.2 kW hours for the metric 'kilo' prefix. A kilowatt hour is a measure of energy used by an appliance if it were kept running for one hour. To keep in mind. Since the Amp Hour rating is a 20 Hour rating, so we need to treat kilowatt conversion as 20 hour rating. For the 1200 Watt Hour conversion, the battery will provide 60 Watts for 20 Hours. Ampere is an electrical unit used to measure the current flow towards the load. The battery life or capacity can be calculated from the input current rating of the battery and the load current of the circuit. Battery life will be high when the load current is less. You can determine the time that how long the battery charge will last. For example, a circuit connected with 1000 mAh current rating and it is connected to the load of 20 mAh. Then the battery will last for 50 hours. Batteries are available in different current rating due to its high requirement of different industrial and domestic purposes. Any battery life can be easily calculated by the values of battery capacity in mAh/Ah and load current in mA/A. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.
LEDzFun
Create dynamic LED banners, countdowns, and custom displays for any event. Personalize text, animations, and backgrounds with a user-friendly interface. Offers offline functionality and a rich template gallery for presentations, parties, and more.
- Customizable LED banner creation
- Advanced countdown modes
- Dynamic text and number animations
- Rich background options
- Flexible template system
- Offline functionality
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LEDzFun is a versatile and innovative app designed for creative presentations, real-time bullet screens, countdowns, and customizable templates. Whether you’re in a classroom, at a business meeting, or hosting a party, LEDzFun empowers you to express, organize, and display information in a fun and dynamic way. ### Key Features - Flexible Template System Create, manage, and customize templates for various scenarios. Organize templates by category, favorite your most-used designs, and search with ease. Enjoy a rich gallery of preset scenes, including countdowns, education, business, personal, and creative styles. - Advanced Countdown Modes Support for multiple countdown types: time-based, numeric, custom, and festival countdowns (including lunar calendar events). Set reminders, format displays, and enjoy smooth transition animations for every countdown. - Dynamic Animation Engine Bring your text and numbers to life with a wide range of label animations: scaling, fading, heartbeat, sliding, flipping, popping, and more. Combine, loop, pause, and resume animations for unique effects. - Rich Background Options Personalize your board with static or dynamic colors, gradient transitions, images (local, online, GIFs), and even video backgrounds. Enjoy seamless color blending and smooth visual effects. - Powerful Image Picker & Storage Easily select photos, take pictures, or choose GIFs. Supports multi-selection, automatic orientation correction, and compression. Save, retrieve, and manage your images locally with ease. - User-Friendly Interface & Scene Editor Intuitive UI for editing templates, managing boards, and customizing styles. Includes a scene editor for preset modes and an animation editor for creative effects. - Privacy & Compliance LEDzFun fully complies with App Store privacy policies. User agreements and privacy policies are transparent, covering service scope, user behavior, data collection, and permissions. - More Local Features Enjoy preset scene modes, scheduled tasks, gesture controls, text art generators, quick command sets, and more—all designed for offline use and maximum creativity. ### Why Choose LEDzFun? - All-in-one creative board for presentations, countdowns, and live displays - Rich template and animation library for any occasion - Smooth, visually appealing transitions and effects - Secure, private, and easy to use Privacy Policy: https://omniscient-badger-71b.notion.site/Privacy-Policy-1eee332a7f0380e4a682f6217659dc0b?pvs=4 EULA: https://omniscient-badger-71b.notion.site/1eee332a7f038060916ddcce0336f247?pvs=4
Screenshots
Verdict
The clearest difference is review sentiment: LEDzFun at 100% against Battery Calculator's 0%. LEDzFun also leads on price (Free vs $2.99) and update cadence (every 3 weeks vs every 40 months). Battery Calculator's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement 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
LEDzFun is free to download; Battery Calculator costs $2.99 up front. LEDzFun sells 3 in-app purchases, starting at $0.99 per month. Battery Calculator asks for nothing beyond the download.
Battery Calculator ships an update every 40 months, LEDzFun every 3 weeks. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.
| Parameter | Battery Calculator | LEDzFun |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 40 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 1 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Nitrio | 杰乐 胡 |
Customer experience
Battery Calculator
LEDzFun
In-app purchases
Battery Calculator
No in-app purchases
LEDzFun
- Monthly Subscription$0.991 Month
- Annual Subscription$3.991 Year
- Lifetime Membership$4.99
Questions
Is Battery Calculator free?
Is LEDzFun free?
Do Battery Calculator or LEDzFun have ads?
Which is updated more often, Battery Calculator or LEDzFun?
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