GEYER Y vs RF calculator & Smith Chart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GEYER Y
Read full descriptionHide full description
The simulation app newly launched and further developed by GEYER Electronic supports you with just a few clicks when creating your design and existing circuits can be checked or optimized. Therefore it will help you to choose the right quartz crystal. What does the Y-Design app offer? - Simple design of initial circuit designs - Testing and optimization of designs by simple parameter input; fast determination of quartz loading - Avoidance of technical problems in advance, e.g. long start-up times - Intuitive app use → self-explanatory and user-friendly menu navigation - Storage and printing of the design parameters - Direct sample request for design review
RF calculator & Smith Chart
Read full descriptionHide full description
RF Calculator & Smith Chart is an all-in-one RF engineering toolkit for impedance matching, RF network analysis, antenna calculations, filters, attenuators and wireless system design. Built for RF engineers, electronics engineers, students, technicians and radio enthusiasts, it brings essential RF calculations and design tools together in one convenient app. Analyze impedance, work with Smith Charts, calculate VSWR and S11, design matching networks, estimate path loss, build RF attenuators and evaluate wireless links without jumping between multiple tools. RF & IMPEDANCE TOOLS • Smith Chart for impedance visualization and matching • S11 and reflection analysis • Reflection coefficient calculator • VSWR calculator • Impedance and transmission-line calculations • Cascaded RF network calculations IMPEDANCE MATCHING Design and analyze common RF matching networks: • L matching networks • Pi (π) matching networks • T matching networks • Stub tuner calculations Useful for antenna matching, RF amplifiers, transmission lines and other impedance-matching applications. RF FILTER DESIGN Calculate and design common passive and RF filters: • RC filters • RL filters • RLC networks • Butterworth LC low-pass filters • Chebyshev LC low-pass filters • Filter designs up to 8th order • Microstrip band-pass filters • Microstrip band-reject / notch filters RLC CIRCUITS Analyze frequency-dependent RLC networks: • Series RLC circuits • Parallel RLC circuits • Resonant frequency calculations • Frequency behavior and reactance RF ATTENUATOR DESIGN Quickly calculate standard RF attenuator networks: • Pi (π) attenuator • T attenuator • Bridged-T attenuator Ideal for RF signal-level control, impedance-matched pads and test setups. ANTENNA & PROPAGATION TOOLS Plan and evaluate RF and wireless systems with: • Antenna design utilities • Free-space path loss calculations • Friis transmission calculations • RF link budget calculator • Power density calculator • Radar maximum-range calculator COMPONENT DESIGN & REFERENCE Useful electronics tools are also included for RF design and prototyping: • Air-core inductor design • Spiral inductor design • Multi-layer air-core inductor calculations • SMD resistor code • Resistor color code • Resistors in series and parallel • SMD capacitor code • Capacitors in series and parallel BUILT FOR PRACTICAL RF WORK RF Calculator & Smith Chart is designed for quick engineering workflows. Select a tool, enter your parameters and get the values you need without working through repetitive equations manually. Use it for: • RF circuit design • Impedance matching • Antenna projects • Wireless link planning • Filter design • RF testing and troubleshooting • Electronics laboratories • Engineering study and coursework • Amateur radio and RF experimentation Whether you're checking VSWR, designing an impedance-matching network, calculating a link budget or experimenting with RF filters, RF Calculator & Smith Chart keeps essential RF engineering tools within easy reach.
Screenshots
Verdict
The clearest difference is in-app purchases: GEYER Y at none against RF calculator & Smith Chart's 1. GEYER Y also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, 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
Both are free to download. RF calculator & Smith Chart sells 1 one-off in-app purchase. GEYER Y asks for nothing beyond the download.
GEYER Y ships an update every 5 months, RF calculator & Smith Chart every 4 months. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.
| Parameter | GEYER Y | RF calculator & Smith Chart |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 33 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Geyer Electronic GmbH | Anas Abubakar |
In-app purchases
GEYER Y
No in-app purchases
RF calculator & Smith Chart
- upgrade to pro$3.99
Questions
Is GEYER Y free?
Is RF calculator & Smith Chart free?
Do GEYER Y or RF calculator & Smith Chart have ads?
Which is updated more often, GEYER Y or RF calculator & Smith Chart?
Other comparisons















