Comparison

Any Formula vs RF Toolbox

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

Head to head
About

Any Formula

Access a vast library of scientific, engineering, and financial formulas for instant calculations. Features smart input validation, customizable themes, and privacy-focused data handling. Unlock all formulas and advanced sharing options with a one-time purchase.

Highlights
  • 572 scientific, engineering, financial formulas
  • 9 formula categories
  • Smart input validation
  • Customizable themes (Light, Dark, Auto)
  • Favorites and history
  • Unit customization and auto-conversion
  • Privacy-focused, no tracking
Features
Read full description

Any Formula puts 572 scientific, engineering, and financial formulas at your fingertips. From Ohm's Law to compound interest, from Pythagorean theorem to gas laws — calculate anything, anywhere. **9 CATEGORIES** Mathematics, Physics, Electronics, Mechanics, Chemistry, Finance & Business, Statistics, Health & Medical, Computer Science **POWERFUL CALCULATION ENGINE** Enter your values, tap Calculate, and get instant results. Smart input validation ensures your numbers are in the right range before computing. Results are clear, accurate, and ready to share. **FREE FEATURES** - 10 free formulas in every category (90 total) - Search all 572 formulas by name, description, or category - Smart suggestions — tell the app what you're working on - 5 favorites for quick access - 5 saved calculation history records - Auto-detect metric system from your device locale - Light, Dark, or Auto theme - Real-time input validation with range guidance **PRO FEATURES (One-Time Purchase)** - Unlock all 572 formulas — no limits - Share results as text - Export results as image or PDF - Up to 500 favorites and history records - Edit and multi-select delete in history - Unit customization per field with auto-conversion - Related formula suggestions for chained workflows **BUILT FOR EVERYONE** Whether you're a student solving homework, a tradesperson on a job site, an engineer at your desk, or a professional running quick calculations — Any Formula has you covered. **PRIVACY FIRST** All data stays on your device. No accounts. No tracking. No cloud uploads. Your calculations are yours alone.

About

RF Toolbox

Features
Read full description

RF Toolbox is a premium-looking companion app for amateur radio operators, RF enthusiasts, and antenna builders. It brings together practical tools for everyday radio work, including: Dipole and antenna calculations Frequency and wavelength conversion Smith Chart visualization Solar and propagation conditions Location and Maidenhead grid tools RF codes, signal references, and utilities Free features include core calculation tools, propagation dashboards, Smith Chart, converter tools, and essential radio references. RF Toolbox Pro unlocks advanced tools for more demanding RF work, including specialized antenna designs, attenuators, link analysis, RF exposure tools, and more. Designed with a dark technical interface, neon cyan accents, and a professional instrument-style feel, RF Toolbox is built to look and feel like serious RF engineering gear. Support: https://clkcompany.github.io/rftoolsapp/support.html Privacy Policy: https://clkcompany.github.io/rftoolsapp/privacy-policy.html Terms of Use: https://clkcompany.github.io/rftoolsapp/terms-of-use.html Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Any Formula4 screens
RF Toolbox4 screens

Verdict

The call

The clearest difference is iOS requirement: RF Toolbox at 13.0 against Any Formula's 18.0. 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. Any Formula sells 1 one-off in-app purchase and RF Toolbox sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 8 level
Any Formula versus RF Toolbox: the parameters behind the verdict, then further details
ParameterAny FormulaRF Toolbox
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyMonthly—
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.013.0 — better
Further details — not scored
Size3 MB21 MB
Age rating4+4+
DeveloperAihotey LLCMuhammed Celik

In-app purchases

1 purchases

Any Formula

One-time1
  • Any Formula Pro$2.99
1 purchases

RF Toolbox

One-time1
  • RF Toolbox Pro Lifetime$3.99

Questions

Is Any Formula free?
Any Formula is free to download, with in-app purchases available.
Is RF Toolbox free?
RF Toolbox is free to download, with in-app purchases available.
Do Any Formula or RF Toolbox have ads?
Neither Any Formula nor RF Toolbox shows ads.

Other comparisons