Comparison

Filter Calculator vs Bias Daily

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

Head to head
About

Filter Calculator

Design various types of electronic filters, including RC, RL, RLC, and passive crossovers, with customizable orders and alignments. Instantly obtain component values and Bode insights for lab, classroom, or audio projects. Ideal for engineers, hobbyists, and students.

Highlights
  • Design RC, RL, and RLC filters (2nd-7th order)
  • Butterworth & Chebyshev alignments
  • Passive crossover calculations
  • Twin-T notch filter design
  • Instant component values
  • Bode insights
  • Offline-friendly dark mode UI
Features
Read full description

Design RC, RL, and RLC filters (2nd–7th order) with Butterworth & Chebyshev alignments, passive crossovers, RLC band-pass/reject, and Twin-T notchβ€”enter specs to instantly get component values and quick Bode insights in a clean, offline-friendly, dark-mode UI for lab, classroom, and audio/embedded work. What you can design: -RC & RL filters: low-pass / high-pass, 2nd–7th order -RLC filters: band-pass & band-reject (notch) -Butterworth: maximally flat magnitude -Chebyshev: ripple-tuned sharpness -Twin-T notch: precise mains or tone suppression -Passive crossovers: 2-way/3-way starter calculations Built for engineers, hobbyist and students, it turns specs into trustworthy parts fastβ€”so you can prototype smarter, learn by tweaking, and move from idea to BOM with confidence.

About

Bias Daily

Features
Read full description

Bias Daily teaches you one cognitive bias every day β€” in 60 seconds. In just a minute a day, you'll learn to recognise the mental shortcuts that distort your thinking, your decisions, and your relationships. HOW IT WORKS Each day you get one bias β€” explained clearly, with a real-world Spot It challenge and a journal prompt to connect it to your own life. Spaced repetition brings back earlier biases so they actually stick. WHAT YOU'LL LEARN 100 cognitive biases across decision-making, social psychology, statistics, and meta-cognition. From Confirmation Bias to the Dunning-Kruger Effect β€” the biases that shape every choice you make. THE FULL CURRICULUM β€’ 100 days of lessons β€’ Spot It challenges to test your recognition β€’ Journal prompts to personalise each bias β€’ Spaced repetition reviews to lock in learning β€’ Library of all biases for reference Free for the first 7 days. Subscription unlocks the full 100-day curriculum. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://beyondoutcomesofficial.github.io/bias-privacy-policy/

Screenshots

Filter Calculator4 screens
Bias Daily4 screens

Verdict

The call

The clearest difference is ads: Bias Daily at none against Filter Calculator's shown. Bias Daily also leads on update cadence (every 3 days vs every 5 months). Filter Calculator's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.6). 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. Filter Calculator sells 1 one-off in-app purchase and Bias Daily sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Filter Calculator ships an update every 5 months, Bias Daily every 3 days. The most recent releases landed on October 13, 2026 and October 2, 2026 respectively.

Scorecard4 real differences Β· 4 level
Filter Calculator versus Bias Daily: the parameters behind the verdict, then further details
ParameterFilter CalculatorBias Daily
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 5 monthsEvery 3 days β€” better
AdsYesNo β€” better
In-app purchasesYesYes
MonetizationFree with in-app purchasesβ€”
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS15.0 β€” better17.6
Further details β€” not scored
Size53 MB80 MB
Age rating4+4+
DeveloperAnas AbubakarSatyamoorthy R

In-app purchases

1 purchases

Filter Calculator

One-time1
  • Upgrade to Pro$2.99
2 purchases

Bias Daily

Subscriptions2
  • Monthly$4.991 Month
  • Yearly$29.991 Year

Questions

Is Filter Calculator free?
Filter Calculator is free to download, with in-app purchases available.
Is Bias Daily free?
Bias Daily is free to download, with in-app purchases available.
Do Filter Calculator or Bias Daily have ads?
Filter Calculator shows ads; Bias Daily does not.
Which is updated more often, Filter Calculator or Bias Daily?
Filter Calculator ships an update every 5 months, and Bias Daily every 3 days. Most recently, Filter Calculator was updated on October 13, 2026 and Bias Daily on October 2, 2026.

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