Comparison

Cattus vs DB Component Decoder

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

Head to head
About

Cattus

Learn Latin from beginner to intermediate with an easy and effective platform. It guides you through the language's complexities with a focus on syntax and vocabulary, offering various practice exercises and complete grammatical tables.

Highlights
  • Beginner-friendly lessons
  • Syntax mastery method
  • Varied practice exercises
  • Selected vocabulary lists
  • Noun declension tables
  • Verb conjugation tables
Features
Read full description

Learn Latin from beginner to intermediate in an easy and effective way. Cattus is a platform designed to gently guide you through the complexities of this beautiful and timeless language. • Start from the basics: Cattus offers a solid foundation for beginners, even for those who have never been exposed to Latin before. • Master the syntax: Understanding the role of each term in a sentence is essential to learning Latin. That's why we've created an exclusive method to help you understand Latin syntax in a simple way. • Practice with a variety of exercises: Including reading, writing, multiple choice, fill-in-the-blanks, and more. • Carefully selected vocabulary: Covering the key aspects of Latin. • Complete tables: With noun declensions, verb conjugations, and usage examples. We are a small team, constantly improving the project. Your support is essential to making it even better. Consider subscribing to the premium version. Share your review or send suggestions to our email.
 Write to contact@cattus.app Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

DB Component Decoder

Features
Read full description

Lo strumento completo per studenti e appassionati di elettronica. Decoder componenti, progettazione alimentatori, database semiconduttori e quiz interattivi — tutto offline, tutto gratis, zero pubblicità. DECODER COMPONENTI Resistori: decodifica bande colore 3, 4, 5 e 6 bande. Inserisci i colori e ottieni il valore, oppure inserisci il valore e scopri i colori. Suggerimento serie E12, E24, E96. Condensatori: codici ceramici (104, 472…), tantalio ed elettrolitici. Tabella rapida dei codici più comuni. Induttori: bande colore e codici SMD (100, 4R7…). LED: calcola il resistore di caduta per qualsiasi LED. Supporta LED in serie e stringhe in parallelo, con preset per i colori più comuni. CALCOLO CIRCUITI Serie e parallelo per R, C e L, fino a 6 componenti. Costante di tempo RC e RL, frequenza di taglio, energia e potenza. Filtri RC, RL e RLC con diagramma di Bode interattivo. ALIMENTAZIONE Progettazione alimentatore AC/DC: scegli la topologia (mezza onda, ponte, presa centrale), calcola tensione DC, ripple e condensatore bulk. Verifica dropout del regolatore. Fusibili trasformatore: dimensionamento primario e secondario con margine per corrente di inrush. Scelta tra fusibile rapido, medio e lento. DATABASE SEMICONDUTTORI Decoder codici SMD per resistori, condensatori, transistor e diodi. Transistor: NPN, PNP, N-MOSFET, P-MOSFET, JFET, IGBT. Scheda completa con pinout, caratteristiche elettriche, equivalenti e sostituti. Diodi: signal, Schottky, rectifier, Zener, TVS e LED. Ogni componente con VF, VRRM, IF, package e note applicative. Regolatori: serie 78xx, 79xx, LM317, LM337 e equivalenti. Ponti raddrizzatori: database con modelli integrati e discreti. DIDATTICA Esercizi interattivi con punteggio e spiegazioni dettagliate. Cronologia degli ultimi 50 componenti analizzati. CARATTERISTICHE 100% offline — nessuna connessione richiesta. Dark mode automatica o manuale. Nessun tracciamento, nessuna pubblicità, nessun account. Progettata da un docente ITIS per studenti di Elettronica e Automazione.

Screenshots

Cattus4 screens
DB Component Decoder4 screens

Verdict

The call

The clearest difference is in-app purchases: DB Component Decoder at none against Cattus's 1. DB Component Decoder also leads on ads (none vs shown) and update cadence (every 3 days vs every 9 days). Cattus's advantage is device support (3 vs 1). On price 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. Cattus sells 1 in-app purchase, starting at $24.99 per year. DB Component Decoder asks for nothing beyond the download.

UpkeepUpdate frequency

Cattus ships an update every 9 days, DB Component Decoder every 3 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
Cattus versus DB Component Decoder: the parameters behind the verdict, then further details
ParameterCattusDB Component Decoder
PriceFreeFree
Rating4.6 (57 ratings) — better—
Positive reviews83.3% of reviews—
Number of ratings57 — better—
Update frequencyEvery 9 daysEvery 3 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.6
Further details — not scored
Size88 MB18 MB
Age rating4+4+
DeveloperBrasilia TecDavide Bertolino

In-app purchases

1 purchases

Cattus

Subscriptions1
  • Premium Plan - Annual$24.991 Year
None

DB Component Decoder

No in-app purchases

Questions

Is Cattus free?
Cattus is free to download, with in-app purchases available.
Is DB Component Decoder free?
DB Component Decoder is free to download, with no in-app purchases.
Do Cattus or DB Component Decoder have ads?
Cattus shows ads; DB Component Decoder does not.
Which is updated more often, Cattus or DB Component Decoder?
Cattus ships an update every 9 days, and DB Component Decoder every 3 days. Most recently, Cattus was updated on October 24, 2026 and DB Component Decoder on October 25, 2026.

Other comparisons