Molecular Weight Calculator vs Conversions
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Molecular Weight Calculator
This tool calculates the average molecular weight of molecules using their chemical formulas. It offers instant results, supports high precision, and is optimized for everyday use on iOS devices. The app prioritizes user privacy and is ad-free.
- Instant molecular weight calculation
- Copy results to other apps
- Includes formula references
- Supports up to 16 decimal places
- Works on iPhone and iPad
- Ad-free and privacy-focused
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The Molecular Weight Calculator is a physics/math tool designed to find the average molecular weight (MW) of molecules by inputting their chemical formulas. Features: - Instant calculation - Results can be copied to other apps - Includes formula references - Supports up to 16 decimal places - Works seamlessly on both iPhone and iPad. - Lightweight, compact app optimized for everyday use. - Ad-free and built with privacy in mind. Note: Chemical formulas are case-sensitive (e.g., C22H30N4O). Definitions: - Molecular mass (molecular weight): The mass of one molecule of a substance, expressed in unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12) - Molar mass (molar weight): The mass of one mole of a substance, expressed in grams per mole (g/mol). Thank you for your support! Visit nitrio.com for more apps for your iOS devices.
Conversions
Easily convert over 100 units across various categories like temperature, length, and weight. View conversion formulas, copy results, and share them directly. Enjoy a private, ad-free experience with a native iOS design.
- Convert 100+ units
- Temperature, length, weight conversions
- View conversion formulas
- Copy and share conversions
- Native iOS design
- Ad-free experience
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Conversions helps you convert different units of measurement, including units of temperature, length, or weight. Use Conversions to convert common measures, such as Fahrenheit to Celsius, meters to feet, and pounds to kilograms, or more technical ones, such as Joule to Kilowatt Hour, Newton to Pound-Force, and Pascal to Bar. Features: · Convert over 100 units across categories like angle, area, data, energy, force, length, power, pressure, speed, temperature, time, volume, and weight · Keep track of up to 100 of your recent conversions · Save up to 25 favorites for quick access · View the exact formulas behind each conversion · Look up unit details, including symbols, measurement systems, and conversion formulas for related units · Copy your conversions to clipboard or share directly with others · Enjoy a native iOS design, using Apple’s latest frameworks and UI guidelines Conversions provides a private and secure, ad-free experience—no ads, no tracking, ever. Terms of Service: https://crater.tools/conversions/terms-of-service Privacy Policy: https://crater.tools/conversions/privacy-policy
Screenshots
Verdict
The clearest difference is price: Conversions at Free against Molecular Weight Calculator's $2.99. Conversions also leads on update cadence (every 2 weeks vs every 29 months). Molecular Weight Calculator's advantage is device support (3 vs 1) and iOS requirement (13 vs 18.6). On rating, ratings volume, ads and in-app purchases 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
Conversions is free to download; Molecular Weight Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Molecular Weight Calculator against 5.0 for Conversions. Both are backed by a comparable volume of ratings — 3 and 2 respectively.
Molecular Weight Calculator ships an update every 29 months, Conversions every 2 weeks. The most recent releases landed on October 15, 2026 and October 28, 2026 respectively.
| Parameter | Molecular Weight Calculator | Conversions |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (3 ratings) | 5.0 (2 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 29 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13 — better | 18.6 |
| Further details — not scored | ||
| Size | 1 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Nitrio | Piotr Bakker |
Customer experience
Molecular Weight Calculator
Conversions
In-app purchases
Molecular Weight Calculator
No in-app purchases
Conversions
No in-app purchases
Questions
Is Molecular Weight Calculator free?
Is Conversions free?
Which has better reviews, Molecular Weight Calculator or Conversions?
Do Molecular Weight Calculator or Conversions have ads?
Which is updated more often, Molecular Weight Calculator or Conversions?
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