Comparison

SFX Scientific Calculator vs Tally

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

Head to head
About

SFX Scientific Calculator

This free calculator app is designed for academic, scientific, and engineering needs. It offers basic arithmetic, memory storage, fraction and percentage calculations, and advanced functions like linear regression and hexadecimal conversions. Its user interface mimics a Casio scientific calculator.

Highlights
  • Basic arithmetic
  • Constant and memory storage
  • Fraction and percentage calculation
  • Linear regression and statistics
  • Number base conversions (Binary, Octal, Decimal, Hexadecimal)
  • Advanced mathematical functions
  • Formula calculations
Features
Read full description

SFX Calc gives students and engineers a familiar handheld-style scientific calculator on iPhone, iPad, and Mac. From quick arithmetic to statistics and engineering formulas, it keeps advanced calculations in a practical, customizable layout. FEATURES • Scientific functions: trigonometric, hyperbolic, logarithmic, exponential, power, and root • Engineering notation with SI prefixes • Fraction and percentage calculations • Linear regression and statistical calculations • Binary, octal, decimal, and hexadecimal modes • Fixed-constant calculations for repeated operations • One persistent memory plus 10 temporary memory registers • Built-in formulas, including the quadratic formula, standard normal distribution probabilities, and engineering calculations • Configurable 10- or 13-digit display and exponent formats • Copy and paste support for faster workflows • A familiar keypad with customizable layout options Ideal for coursework, laboratories, electronics, mathematics, science, and everyday engineering work.

About

Tally

Features
Read full description

Take control of your recurring expenses with Tally. Keep all your subscriptions organized in one place, stay ahead of upcoming renewals, and gain a clear understanding of where your money goes. Whether it's streaming services, cloud storage, fitness memberships, software, or any recurring payment, Tally helps you stay organized and avoid unexpected charges. Features • Track unlimited subscription details with an intuitive interface. • Get timely reminders before renewals and payment dates. • Monitor your monthly and yearly subscription spending. • Organize subscriptions by category. • View all upcoming renewals in one place. • Record free trials and avoid unwanted charges. • Store billing information, payment methods, and notes. • Search and filter subscriptions quickly. • Support multiple billing cycles, including weekly, monthly, quarterly, yearly, and custom periods. • Enjoy a clean, fast, and privacy-focused experience. Premium Features Unlock the full experience with Premium: • Unlimited subscriptions. • Advanced spending insights and analytics. • Enhanced reminders and notifications. • Premium customization options. • Future premium features as they are released. Why You'll Love Tally Managing recurring payments shouldn't be stressful. Subscription Tracker makes it easy to keep everything organized, reduce unnecessary spending, and stay informed about every renewal. Download Tally today and take control of your subscriptions with confidence. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SFX Scientific Calculator4 screens
Tally4 screens

Verdict

The call

The clearest difference is in-app purchases: SFX Scientific Calculator at none against Tally's 2. SFX Scientific Calculator also leads on device support (4 vs 1) and iOS requirement (14.0 vs 16.4). Tally's advantage is ads (none vs shown). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Tally sells 2 in-app purchases, starting at $2.99 per month. SFX Scientific Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

SFX Scientific Calculator ships an update every 3 weeks, Tally every 10 days. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 6 level
SFX Scientific Calculator versus Tally: the parameters behind the verdict, then further details
ParameterSFX Scientific CalculatorTally
PriceFreeFree
Rating4.7 (145 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings145 — better—
Update frequencyEvery 3 weeksEvery 10 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS14.0 — better16.4
Further details — not scored
Size20 MB67 MB
Age rating4+4+
DeveloperWai Kwong LeeAli Aljumah

In-app purchases

None

SFX Scientific Calculator

No in-app purchases

2 purchases

Tally

Subscriptions2
  • Premium$2.991 Month
  • Premium Yearly$24.991 Year

Questions

Is SFX Scientific Calculator free?
SFX Scientific Calculator is free to download, with no in-app purchases.
Is Tally free?
Tally is free to download, with in-app purchases available.
Do SFX Scientific Calculator or Tally have ads?
SFX Scientific Calculator shows ads; Tally does not.
Which is updated more often, SFX Scientific Calculator or Tally?
SFX Scientific Calculator ships an update every 3 weeks, and Tally every 10 days. Most recently, SFX Scientific Calculator was updated on October 25, 2026 and Tally on October 10, 2026.

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