Comparison

ACH vs Smith Chart Touch

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

Head to head
About

ACH

Features
Read full description

ACH – quantum inspired é um app com demonstrações online e offline que oferecem uma experiência prática e acessível de técnicas inspiradas em annealing/Ising. Modo offline (PT/EN): carregue uma imagem binária, adicione/remova “ruídos” e observe os efeitos na reconstrução/limpeza. Ideal para explorar conceitos sem conexão nem cadastro. Modo online (opcional): para testar passagem de parâmetros e medições mais técnicas, você pode solicitar um token gratuito ao grupo CMOS Hitachi e realizar chamadas para serviços de annealing na nuvem. O app apenas realiza requisições HTTPS — não há login obrigatório nem coleta de dados pessoais. Conteúdo extra: acesso direto e gratuito a artigos do autor sobre o tema. O objetivo é aprender por experimentação: testar ruídos, ver resultados e compreender na prática como esses métodos se comportam. O app é bilíngue (PT/EN), não usa IA generativa e funciona totalmente offline no módulo local. Destaques • Demos offline e online (annealing/Ising) • Inserção e redução de “ruído” em imagem binária • Chamadas HTTPS opcionais com token de terceiro (CMOS Hitachi) • Bilingue (PT/EN) • Sem cadastro obrigatório • Conteúdos do autor Avisos • O modo online depende de serviço externo e pode ficar indisponível ocasionalmente. • Nenhum dado pessoal é coletado; não há rastreamento.

About

Smith Chart Touch

Features
Read full description

Smith Chart Touch is the essential Smith chart tool for RF and microwave engineers, students, and hobbyists. Design and analyze impedance matching networks interactively — directly on your device. Build your circuit by adding components one by one and watch the matching path update on the Smith chart in real time. Tap any component to edit its value, drag on the chart to tune it visually, or type exact numbers — the chart and inputs stay in sync at all times. Circuit Components: Series resistor, inductor, and capacitor Parallel resistor, inductor, and capacitor Transmission line (length in wavelengths) Open and short stub (parallel) Smith Chart Modes: Impedance (Z) chart Admittance (Y) chart Immittance (ZY) combined chart Key Features: Fully interactive: drag on the chart or type values — both update each other instantly Multiple projects with custom names and colors per circuit path Example circuits included to get started quickly Clean, dark UI optimized for readability Who is it for? Smith Chart Touch is built for electrical engineers working with RF circuits, antenna design, amplifier matching, and transmission line theory. It is also a great learning companion for students studying microwave engineering.

Screenshots

ACH4 screens
Smith Chart Touch3 screens

Verdict

The call

The clearest difference is iOS requirement: ACH at 12.0 against Smith Chart Touch's 15.0. On price, ads, in-app purchases and device support 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.

Scorecard1 real difference · 5 level
ACH versus Smith Chart Touch: the parameters behind the verdict, then further details
ParameterACHSmith Chart Touch
PriceFreeFree
Update frequency—Every 3 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size56 MB22 MB
Age rating4+4+
DeveloperCarlos FrancaSthefano Schiavon

In-app purchases

None

ACH

No in-app purchases

None

Smith Chart Touch

No in-app purchases

Questions

Is ACH free?
ACH is free to download, with no in-app purchases.
Is Smith Chart Touch free?
Smith Chart Touch is free to download, with no in-app purchases.
Do ACH or Smith Chart Touch have ads?
Neither ACH nor Smith Chart Touch shows ads.

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