Comparison

FLOstate AI vs RF calculator & Smith Chart

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

Head to head
About

FLOstate AI

Features
Read full description

FLOstate is an AI-powered design collaboration platform built specifically for iPad. It transforms how designers, creatives, and professionals work with AI through visual-first workflows that match how designers actually think. Terms of Use (EULA): https://theflo.ai/terms Privacy Policy: https://theflo.ai/privacy VISUAL-FIRST DESIGN WORKFLOW Unlike traditional design tools that force text-based workflows, theFLOpad is built for visual thinkers. Every interaction is designed around imagery, spatial relationships, and experiential learningβ€”the way designers naturally process information. KEY FEATURES β€’ AI Persona Builder Create detailed customer personas using visual moodboards. Build three-category profiles (Persona, Lifestyle, Materials) that capture the essence of your target audience through images, not just text. β€’ AI Image Generation Generate custom images with advanced AI models. Create concept visuals, moodboard elements, and design iterations that match your creative vision and persona requirements. β€’ Design Validation Chat Have real conversations with AI personas to validate your design concepts. Test assumptions, get feedback, and ensure your designs resonate with your target audience before you build. β€’ Interactive Moodboards Build visual collections with intuitive drag-and-drop. Organize inspiration, concepts, and references in a spatial, visual format that matches your cognitive workflow. β€’ Drawing & Sketching Use Apple Pencil to sketch, draw, and annotate directly on your iPad. Seamlessly integrate hand-drawn concepts into your digital workflow. β€’ Project Management Organize all your design projects in one place. Track iterations, manage assets, and maintain visual continuity across all your creative work. PERFECT FOR β€’ Industrial Designers – Visual pattern recognition professionals β€’ Graphic Designers – Aesthetic pattern recognition specialists β€’ Interior Designers – Spatial pattern recognition experts β€’ Contractors – Functional pattern recognition practitioners β€’ Creative Professionals – Anyone who thinks visually, not textually THE DESIGNER'S DILEMMA SOLVED Traditional design validation relies on text and abstract methods that do not match how designers think. theFLOpad bridges this gap by providing visual, experiential validation workflows that align with natural cognitive processes. Instead of: Designer Creates β†’ Assumes Customer Needs β†’ Builds Product β†’ Customer Does Not Buy You get: Designer Creates β†’ Builds AI Persona (Visual) β†’ Converses with Persona β†’ Validates Assumptions β†’ Builds What Customers Actually Want WHY THEFLOpad β€’ Built for iPad – Native touch, Apple Pencil, and gesture support β€’ Visual-First – Every feature designed around imagery and spatial thinking β€’ AI-Powered – Advanced AI models for image generation and persona conversations β€’ Privacy-Focused – Secure authentication with Sign in with Apple β€’ iCloud Sync – Access your creations anywhere, anytime GET STARTED Download theFLOpad and transform your design workflow today. Build personas visually, generate images with AI, validate concepts through conversation, and create designs that customers actually want.Download theFLOpad and transform your design workflow today. Build personas visually, generate images with AI, validate concepts through conversation, and create designs that customers actually want. Perfect for design students, creative professionals, and anyone who wants to leverage AI for faster, more innovative design work. Terms of Use: https://theflo.ai/terms Privacy Policy: https://theflo.ai/privacy Perfect for design students, creative professionals, and anyone who wants to leverage AI for faster, more innovative design work.

About

RF calculator & Smith Chart

Features
Read 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 β€’ Smith Chart for impedance visualization and matching β€’ S11 and reflection analysis β€’ Reflection coefficient calculator β€’ VSWR calculator β€’ Impedance and transmission-line calculations β€’ Cascaded RF network calculations IMPEDANCE MATCHING Design and analyze common RF matching networks: β€’ L matching networks β€’ Pi (Ο€) matching networks β€’ T matching networks β€’ 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: β€’ RC filters β€’ RL filters β€’ RLC networks β€’ Butterworth LC low-pass filters β€’ Chebyshev LC low-pass filters β€’ Filter designs up to 8th order β€’ Microstrip band-pass filters β€’ Microstrip band-reject / notch filters RLC CIRCUITS Analyze frequency-dependent RLC networks: β€’ Series RLC circuits β€’ Parallel RLC circuits β€’ Resonant frequency calculations β€’ Frequency behavior and reactance RF ATTENUATOR DESIGN Quickly calculate standard RF attenuator networks: β€’ Pi (Ο€) attenuator β€’ T attenuator β€’ 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: β€’ Antenna design utilities β€’ Free-space path loss calculations β€’ Friis transmission calculations β€’ RF link budget calculator β€’ Power density calculator β€’ Radar maximum-range calculator COMPONENT DESIGN & REFERENCE Useful electronics tools are also included for RF design and prototyping: β€’ Air-core inductor design β€’ Spiral inductor design β€’ Multi-layer air-core inductor calculations β€’ SMD resistor code β€’ Resistor color code β€’ Resistors in series and parallel β€’ SMD capacitor code β€’ 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: β€’ RF circuit design β€’ Impedance matching β€’ Antenna projects β€’ Wireless link planning β€’ Filter design β€’ RF testing and troubleshooting β€’ Electronics laboratories β€’ Engineering study and coursework β€’ 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

FLOstate AI4 screens
RF calculator & Smith Chart4 screens

Verdict

The call

The clearest difference is update cadence: FLOstate AI at weekly against RF calculator & Smith Chart's every 4 months. RF calculator & Smith Chart's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. FLOstate AI sells 3 in-app purchases, starting at $4.99 per month and RF calculator & Smith Chart sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

FLOstate AI ships an update weekly, RF calculator & Smith Chart every 4 months. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

Scorecard2 real differences Β· 4 level
FLOstate AI versus RF calculator & Smith Chart: the parameters behind the verdict, then further details
ParameterFLOstate AIRF calculator & Smith Chart
PriceFreeFree
Update frequencyWeekly β€” betterEvery 4 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS17.015.0 β€” better
Further details β€” not scored
Size22 MB31 MB
Age rating4+4+
DeveloperFlo Ai TechnologiesAnas Abubakar

In-app purchases

3 purchases

FLOstate AI

Subscriptions2
  • theFLOai Basic$4.991 Month
  • theFLOai Pro$14.991 Month
One-time1
  • AI Training Tokens$4.99
1 purchases

RF calculator & Smith Chart

One-time1
  • upgrade to pro$3.99

Questions

Is FLOstate AI free?
FLOstate AI is free to download, with in-app purchases available.
Is RF calculator & Smith Chart free?
RF calculator & Smith Chart is free to download, with in-app purchases available.
Do FLOstate AI or RF calculator & Smith Chart have ads?
Neither FLOstate AI nor RF calculator & Smith Chart shows ads.
Which is updated more often, FLOstate AI or RF calculator & Smith Chart?
FLOstate AI ships an update weekly, and RF calculator & Smith Chart every 4 months. Most recently, FLOstate AI was updated on October 7, 2026 and RF calculator & Smith Chart on October 13, 2026.

Other comparisons