Comparison

Fire Calculator vs Retirement Countdown

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

Head to head
About

Fire Calculator

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⏱ ⏖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⏖ ↪ Everything free ↪ Amazing interface with low battery usage ↪ Equation and Integral solving feature ↪ Exponential form as if hand-written mathematical expressions ↪ Copy-pasting of mathematical expressions ↪ Arithmetical operations, trigonometric and inverse-trigonometric functions, logarithmical and natural logarithmical operations, power operations, root operations, factorial operations, percentage calculations ↪ π and e numbers ↪ Using π symbol inside trigonometric functions ↪ Advantage of using the previous answer in the new expression ©2020 Burak Bilgin. All rights reserved.

About

Retirement Countdown

Track your retirement progress with a motivating countdown and practical planning tools. Estimate savings, customize your journey with themes and photos, and generate detailed reports. Make every day count towards your retirement goal.

Highlights
  • Retirement countdown timer
  • Home Screen widgets
  • Retirement savings calculator
  • Customizable themes and photos
  • Detailed retirement reports
  • PDF/CSV export
Features
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See exactly how long remains until retirement—and turn the wait into a plan. Retirement Countdown combines a motivating countdown with practical planning tools, Home Screen widgets, reminders, reports, and personal themes. Set your target date once, then keep your progress and retirement goal visible every day. COUNT DOWN TO YOUR RETIREMENT • View the years, months, and days remaining • Follow your progress toward your target date • Keep the countdown visible with Small and Medium Home Screen widgets • Share your countdown with friends, family, or coworkers PLAN WITH MORE CONFIDENCE • Estimate future savings with the retirement savings calculator • Compare projected savings with your retirement goal • Plan in USD, EUR, GBP, CNY, and other supported currencies • Unlock detailed guidance and practical next steps MAKE THE JOURNEY YOURS • Choose from inspiring background themes • Add a custom photo and enable automatic daily backgrounds • Save favorite retirement quotes for extra motivation • Receive weekly reminders and retirement milestone notifications CREATE A RETIREMENT REPORT Review year-by-year projections in an advanced retirement report, then export your plan as PDF or CSV when you want to keep a copy or share it. Retirement Countdown is useful for anyone planning a traditional retirement, exploring early retirement, following a FIRE goal, or preparing for a coworker's final day at work. PREMIUM Premium unlocks all themes, custom photos, automatic backgrounds, detailed savings guidance, multiple currencies, Home Screen widgets, milestone reminders, advanced reports, and PDF/CSV export. Weekly and yearly subscription options may be available. Subscriptions renew automatically unless canceled through your Apple Account settings. Start your retirement countdown today and make every remaining day count. Privacy Policy: https://cookie-twig-39d.notion.site/Privacy-Policy-2338ba954ef380489a9acfa53a9524e6 This app uses the standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Fire Calculator4 screens
Retirement Countdown3 screens

Verdict

The call

The clearest difference is update cadence: Retirement Countdown at every 9 months against Fire Calculator's every 65 months. Retirement Countdown also leads on device support. On price, in-app purchases 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

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

Fire Calculator ships an update every 65 months, Retirement Countdown every 9 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 7 level
Fire Calculator versus Retirement Countdown: the parameters behind the verdict, then further details
ParameterFire CalculatorRetirement Countdown
PriceFreeFree
Rating—4.5 (22 ratings) — better
Number of ratings—22 — better
Update frequencyEvery 65 monthsEvery 9 months — better
Ads—No
In-app purchasesNoNo
Monetization—Freemium
Devices—iPhone, iPad, iPod — better
Requires iOS15.115.0 — better
Further details — not scored
Size37 MB24 MB
Age rating4+4+
DeveloperBurak Bilgin明航 李

In-app purchases

None

Fire Calculator

No in-app purchases

None

Retirement Countdown

No in-app purchases

Questions

Is Fire Calculator free?
Fire Calculator is free to download, with no in-app purchases.
Is Retirement Countdown free?
Retirement Countdown is free to download, with no in-app purchases.
Which is updated more often, Fire Calculator or Retirement Countdown?
Fire Calculator ships an update every 65 months, and Retirement Countdown every 9 months. Most recently, Fire Calculator was updated on November 3, 2026 and Retirement Countdown on November 5, 2026.

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