Comparison

Filter Calculator vs Filtroscope

Price, ratings, monetisation and update history for both apps, side by side — 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 notch—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 fast—so you can prototype smarter, learn by tweaking, and move from idea to BOM with confidence.

About

Filtroscope

Features
Read full description

Filtroscope permet de tracer des circuits de filtres électroniques et d'en obtenir automatiquement : • la fonction de transfert (expression littérale), • le diagramme de Bode (gain et phase), • la réponse en amplitude, • une visualisation à l'oscilloscope des signaux d'entrée et de sortie. Idéal pour les étudiants en CPGE et en Licence, et pour les enseignants de physique. 100 % hors-ligne, sans publicité, sans collecte de données : tous les calculs s'effectuent sur votre appareil.

Screenshots

Filter Calculator4 screens
Filtroscope4 screens

Verdict

The call

The clearest difference is in-app purchases: Filtroscope at none against Filter Calculator's 1. Filtroscope also leads on ads (none vs shown) and update cadence (daily vs every 5 months). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Filter Calculator sells 1 one-off in-app purchase. Filtroscope asks for nothing beyond the download.

UpkeepUpdate frequency

Filter Calculator ships an update every 5 months, Filtroscope daily. The most recent releases landed on October 13, 2026 and September 18, 2026 respectively.

Scorecard3 real differences · 5 level
Filter Calculator versus Filtroscope: the parameters behind the verdict, then further details
ParameterFilter CalculatorFiltroscope
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 5 monthsDaily — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size53 MB12 MB
Age rating4+4+
DeveloperAnas AbubakarThomas Roy

In-app purchases

1 purchases

Filter Calculator

One-time1
  • Upgrade to Pro$2.99
None

Filtroscope

No in-app purchases

Questions

Is Filter Calculator free?
Filter Calculator is free to download, with in-app purchases available.
Is Filtroscope free?
Filtroscope is free to download, with no in-app purchases.
Do Filter Calculator or Filtroscope have ads?
Filter Calculator shows ads; Filtroscope does not.
Which is updated more often, Filter Calculator or Filtroscope?
Filter Calculator ships an update every 5 months, and Filtroscope daily. Most recently, Filter Calculator was updated on October 13, 2026 and Filtroscope on September 18, 2026.

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