Unit Converter HD. vs Any Formula
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Unit Converter HD.
Easily convert over 700 units across 30 categories with this powerful tool. It offers a user-friendly interface, dark mode support, and a backspace key for quick corrections. Save time on all your measurement conversion needs.
- 700+ Units of Measure
- 30 Conversion Categories
- Easy-to-Use Interface
- Dark Mode Support
- Backspace Key
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The most powerful unit converter in the market. Helps you make easy conversion between more than 700+ various units of measure in 30 categories. Discover a universal assistant for all of your unit conversion needs. Features: √ 30 Categories √ 700+ Units of Measure √ Backspace key √ Extremely Easy-to-Use √ Supports Dark Mode Save Your Time. Quickly & Easily! Universer Unit Converter Free HD URL scheme is "EWUnitConverterFree://"
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.
Screenshots
Verdict
The clearest difference is ads: Any Formula at none against Unit Converter HD.'s shown. Any Formula also leads on rating (5.0 vs 4.7). Unit Converter HD.'s advantage is ratings volume (644 vs 2) and iOS requirement (13.0 vs 18.0). On price, update cadence, in-app purchases and monetization model 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. Unit Converter HD. sells 1 one-off in-app purchase and Any Formula sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Any Formula holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Unit Converter HD. has 644 ratings behind it against 2, so its average is the more settled of the two.
Unit Converter HD. ships an update every 2 months, Any Formula monthly. The most recent releases landed on October 20, 2026 and October 14, 2026 respectively.
| Parameter | Unit Converter HD. | Any Formula |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (644 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 93.8% of reviews | — |
| Number of ratings | 644 — better | 2 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 86 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 良峰 侯 | Aihotey LLC |
Customer experience
Unit Converter HD.
Any Formula
Bugs and requests
Unit Converter HD.
Reported bugs
2 issues- Freezing or crashing on some devices
- Display issues with certain units
Requested features
3 requests- Add support for US weights (tons, lbs., oz.)
- Implement portrait mode support
- Provide more customization options
Any Formula
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Unit Converter HD.
- Remove Ads Pack$1.99
Any Formula
- Any Formula Pro$2.99
Questions
Is Unit Converter HD. free?
Is Any Formula free?
Which has better reviews, Unit Converter HD. or Any Formula?
Do Unit Converter HD. or Any Formula have ads?
Which is updated more often, Unit Converter HD. or Any Formula?
Other comparisons
