Comparison

ParaLang 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

ParaLang

This app acts as a custom keyboard that translates your text in real-time, turning everyday conversations into personalized language learning opportunities. It offers on-device translation and creates custom quizzes from your own phrases, all while prioritizing user privacy.

Highlights
  • Custom iOS keyboard
  • 100% on-device translation
  • Learn from your own text
  • Personalized quizzes
  • Privacy-focused design
  • Real-world conversation practice
Read full description

Try a new way to learn. Traditional apps interrupt your day. ParaLang integrates into it. As a custom iOS keyboard with a 100% on-device translation engine, ParaLang turns every text, email, and search bar into a live tutoring session AND custom curriculum for you to study. Learn in Flow: See and hear translations of your own thoughts as you type. True Personalization: It automatically turns the phrases you actually use into speaking and fill-in-the-blank quizzes. Privacy First: Your data stays on your phone. No cloud, no tracking—just mastery. Stop memorizing generic vocab. Start mastering your real-world conversations. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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

ParaLang4 screens
Smith Chart Touch3 screens

Verdict

The call

The clearest difference is in-app purchases: Smith Chart Touch at none against ParaLang's 1. Smith Chart Touch also leads on iOS requirement (15.0 vs 18.5). ParaLang's advantage is update cadence (monthly vs every 3 months). On price, ads 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. ParaLang sells 1 in-app purchase, starting at $4.99 per month. Smith Chart Touch asks for nothing beyond the download.

UpkeepUpdate frequency

ParaLang ships an update monthly, Smith Chart Touch every 3 months. The most recent releases landed on October 1, 2026 and October 20, 2026 respectively.

Scorecard3 real differences · 7 level
ParaLang versus Smith Chart Touch: the parameters behind the verdict, then further details
ParameterParaLangSmith Chart Touch
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.515.0 — better
Further details — not scored
Size32 MB22 MB
Age rating12+4+
DeveloperBartlett Services & Solutions LLCSthefano Schiavon

In-app purchases

1 purchases

ParaLang

Subscriptions1
  • ParaLang Pro7 Days trial$4.991 Month
None

Smith Chart Touch

No in-app purchases

Questions

Is ParaLang free?
ParaLang is free to download, with in-app purchases available.
Is Smith Chart Touch free?
Smith Chart Touch is free to download, with no in-app purchases.
Do ParaLang or Smith Chart Touch have ads?
Neither ParaLang nor Smith Chart Touch shows ads.
Which is updated more often, ParaLang or Smith Chart Touch?
ParaLang ships an update monthly, and Smith Chart Touch every 3 months. Most recently, ParaLang was updated on October 1, 2026 and Smith Chart Touch on October 20, 2026.

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