Comparison

Fire Calculator vs Big Timer

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

Head to head
About

Fire Calculator

Read full description

⏱ ⏖Description⏖ Fire Calculator is designed for engineers, students and children. While boring technical calculations are done, the needed sense of having fun is provided on this calculator. This calculator is indispensable especially for mechanical engineering, civil engineering, chemical engineering, electrics engineering, mathematics professions. Fire Calculator can easily determine the mathematical expressions and correct if needed. By the help of hand-written exponential forms, you can easily see any mistakes in your mathematical expressions. Fire Calculator also has the functionality of seeing the history of your previous calculations by scrolling up. Furthermore, with the functionality of visual effects, users can do their mathematical affairs in an amazing and funny way of calculations. ⏱ ⏖Features⏖ β†ͺ Everything free β†ͺ Amazing interface with low battery usage β†ͺ Equation and Integral solving feature β†ͺ Exponential form as if hand-written mathematical expressions β†ͺ Copy-pasting of mathematical expressions β†ͺ Arithmetical operations, trigonometric and inverse-trigonometric functions, logarithmical and natural logarithmical operations, power operations, root operations, factorial operations, percentage calculations β†ͺ Ο€ and e numbers β†ͺ Using Ο€ symbol inside trigonometric functions β†ͺ Advantage of using the previous answer in the new expression Β©2020 Burak Bilgin. All rights reserved.

About

Big Timer

Features
Read full description

Big Timer: Minimalist Large Digit Focus & Countdown Timer Looking for a clean, distraction-free timer with massive, easy-to-read digits across the room? Big Timer is designed with an ultra-minimalist full-screen interface featuring high-contrast extra-large numbers. Whether you are conducting a keynote presentation, studying with the Pomodoro technique, timing high-intensity interval workouts, cooking in the kitchen, or practicing meditation, Big Timer keeps your time perfectly visible at a glance. How to Use 1. Set Time: Tap the big display to quickly adjust minutes and seconds with the smooth wheel selector. 2. Mode Selection: Toggle effortlessly between Countdown mode for timed tasks and Count-Up Stopwatch mode for track sessions. 3. Start & Pause: Single-tap anywhere to start or pause the timer instantly. 4. Auto-Theme Matching: Enjoy 8 purpose-driven color themes automatically matched to your activity (Focus, Workout, Cooking, Presentation, Meditation, Deadline, Break, General). Key Features - Extra Large High-Contrast Display: Huge digital numbers designed for maximum legibility from any distance. - Dual Timer Modes: Supports both Countdown Timer and Count-Up Stopwatch functions. - 8 Purpose-Driven Dynamic Themes: Beautiful color palettes tailored for Focus (Blue), Workout (Green), Cooking (Orange), Presentation (Purple), Meditation (Cyan), Deadline (Red), Break (Lime), and General (Slate). - Keep Screen On (Wakelock): Prevents your display from sleeping or dimming automatically during important timer sessions. - Audio & Haptic Feedback: Optional pleasant completion sound and vibration alerts when your session finishes. - Lightweight & Privacy-Focused: Operates 100% locally on your device with instant responsiveness. Recommended For - Students and professionals using the Pomodoro technique for deep focus and study sessions. - Speakers, teachers, and presenters keeping track of talk duration and speech deadlines. - Fitness enthusiasts, coaches, and athletes timing gym workouts, HIIT, and interval training. - Home cooks needing a clear kitchen timer visible from across the room. - Anyone seeking a clean, uncluttered desk clock and timer experience. Download Big Timer today and enjoy a beautifully clear, large-digit focus timer!

Screenshots

Fire Calculator4 screens
Big Timer4 screens

Verdict

The call

The clearest difference is update cadence: Big Timer at every 7 months against Fire Calculator's every 65 months. Big Timer also leads on device support and iOS requirement (13.0 vs 15.1). On price and in-app purchases there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

Fire Calculator ships an update every 65 months, Big Timer every 7 months. Both last shipped on October 11, 2026.

Scorecard3 real differences Β· 3 level
Fire Calculator versus Big Timer: the parameters behind the verdict, then further details
ParameterFire CalculatorBig Timer
PriceFreeFree
Update frequencyEvery 65 monthsEvery 7 months β€” better
Adsβ€”Yes
In-app purchasesNoNo
Devicesβ€”iPhone, iPad, iPod β€” better
Requires iOS15.113.0 β€” better
Further details β€” not scored
Size37 MB33 MB
Age rating4+4+
DeveloperBurak BilginSeulki Eom

In-app purchases

None

Fire Calculator

No in-app purchases

None

Big Timer

No in-app purchases

Questions

Is Fire Calculator free?
Fire Calculator is free to download, with no in-app purchases.
Is Big Timer free?
Big Timer is free to download, with no in-app purchases.
Which is updated more often, Fire Calculator or Big Timer?
Fire Calculator ships an update every 65 months, and Big Timer every 7 months. Most recently, Fire Calculator was updated on October 11, 2026 and Big Timer on October 11, 2026.

Other comparisons