Any Formula vs RF Toolbox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
RF Toolbox
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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
Verdict
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
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.
| Parameter | Any Formula | RF Toolbox |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Aihotey LLC | Muhammed Celik |
In-app purchases
Any Formula
- Any Formula Pro$2.99
RF Toolbox
- RF Toolbox Pro Lifetime$3.99
Questions
Is Any Formula free?
Is RF Toolbox free?
Do Any Formula or RF Toolbox have ads?
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