Powerfish vs RF toolbox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Powerfish
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This cloud-based app is a simple and intuitive way to monitor and analyse your remote energy systems, whether wind, water or solar. Features - Overview screen clearly displays a live snap-shot of all schemes, energy production and - Individual scheme screens show live data of all key set-points. - Easy access to energy trends for the last 48hours. - Alarm notifications of any issues to be investigated - Intuitive navigation - Dark Mode function To be able to access data from an energy generating scheme, the system must be linked to a Powerfish Edge Box. For more details, contact info@powerfish.co.uk
RF toolbox
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RF Toolbox — All-in-One RF Engineering Calculator & Design Suite RF Toolbox is a practical, field-ready app built for RF engineers, students, and radio hobbyists who need fast, reliable calculations and design utilities in one place. From impedance matching and transmission line work to filter and attenuator synthesis, RF Toolbox helps you move from idea to implementation with less friction. KEY FEATURES Impedance & S-Parameter Tools • Smith Chart utilities for impedance visualization and matching workflows • S11 parameter / reflection analysis support • Reflection coefficient and VSWR calculators Matching Networks • L, Pi (π), and T matching network calculators • Stub tuner tools for transmission-line matching • Filters (Passive & RF) • RC and RL passive filter calculators • LC low-pass prototypes: Butterworth and Chebyshev (up to 8th order) • Microstrip filters: band-pass and band-reject (notch) • RLC Networks • RLC series and parallel calculators for resonance and frequency behavior Attenuators • Pi (π), T, and Bridge-T attenuator calculators for common RF pad designs • Cascaded Networks • Cascaded network calculations for chained RF blocks and stages Antenna & Propagation • Antenna design utilities (core RF design helpers) • Path loss calculators • Friis link budget calculator • Power density calculator • Radar maximum range calculator Component Toolkits • Inductor design: air-core, spiral, and multi-layer air-core • Resistors: SMD code, color code, and series/parallel network calculator • Capacitors: SMD code and series/parallel network calculator DESIGNED FOR SPEED AND ACCURACY RF Toolbox is organized for quick access—open the tool you need, enter values, and get results immediately. Whether you’re prototyping a matching network, checking VSWR, sizing an attenuator, or running a quick link budget, RF Toolbox keeps your workflow efficient. Download RF Toolbox and keep essential RF design tools in your pocket.
Screenshots
Verdict
The clearest difference is in-app purchases: Powerfish at none against RF toolbox's 1. RF toolbox's advantage is iOS requirement (13.0 vs 15.1). 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 toolbox sells 1 one-off in-app purchase. Powerfish asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on September 18, 2026 and September 9, 2026 respectively.
| Parameter | Powerfish | RF toolbox |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Every 6 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 36 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Powerfish Ltd. | Anas Abubakar |
In-app purchases
Powerfish
No in-app purchases
RF toolbox
- upgrade to pro$3.99









