Molarity Abacus vs Multi Search Engine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Molarity Abacus
Easily calculate molarity, solution volume, solute mass, or molecular weight by inputting any three variables. Customize units and access pre-configured strong acids and bases. An in-app purchase allows for creating and storing custom compounds.
- Molarity calculation
- Solute mass calculation
- Total solution volume calculation
- Molecular weight calculation
- Customizable units
- Pre-configured compounds
- Create and store custom compounds
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- Easily calculate Molarity, Total Solution Volume, Solute Mass, or Molecular Weight. - Simply input three of the four variables and the fourth is calculated automatically. - The units can be changed for Total Solution Volume, Solute Mass, or Molecular Weight. - In-App purchase available to create and store compounds for quick access. The Molarity Abacus is a simple and easy way to do molarity calculations. Simply input any three of the four variables and the fourth will be instantly calculated. Includes full help documentation on each screen. The seven strong acids and eight strong bases are pre-configured in the app and can be selected from a list of compounds. With an In-App purchase, you gain even more functionality allowing you to create and store compounds for repeated use. You name the compound, select the elements in it, set the number of atoms for each element, and the molecular weight is calculated automatically. The full periodic table is included and has been loaded with molecular weights and checked against publicly available sources on the internet. The element weights can be edited. This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.openssl.org/)
Multi Search Engine
Enhance your browsing with a powerful search tool that integrates with Safari. Switch between multiple search engines instantly from your address bar to find information faster. This utility is available for iOS, iPadOS, and macOS.
- Switch between search engines
- Integrates with Safari
- Fast search functionality
- Supports iOS, iPadOS, and macOS
- Single purchase for full features
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Upgrade your Safari browsing and search experience by purchasing MultiSearchEngine. With a single purchase, you gain access to a full-featured search tool that supports iOS, iPadOS, and macOS. With MultiSearchEngine, you can significantly enhance your search efficiency within the browser, elevating your overall browsing experience. MultiSearchEngine is an extension for Safari, allowing you to conveniently switch between various search engines. For instance, you can type "bn mountain" in the address bar to quickly search "mountain" using the Bing engine, or type "bd mountain" to swiftly transition to the Baidu engine for searching "mountain", all without navigating away from your current page. - -
Screenshots
Verdict
The clearest difference is price: Molarity Abacus at Free against Multi Search Engine's $0.99. Molarity Abacus also leads on ratings volume (15 vs 1) and iOS requirement (8.0 vs 15.0). Multi Search Engine's advantage is rating (5.0 vs 4.5) and in-app purchases (none vs 1). On update cadence and ads 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
Molarity Abacus is free to download; Multi Search Engine costs $0.99 up front. Molarity Abacus sells 1 one-off in-app purchase. Multi Search Engine asks for nothing beyond the download.
Multi Search Engine holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Molarity Abacus has 15 ratings behind it against 1, so its average is the more settled of the two.
Molarity Abacus ships an update every 12 months, Multi Search Engine every 7 months. The most recent releases landed on September 20, 2026 and September 19, 2026 respectively.
| Parameter | Molarity Abacus | Multi Search Engine |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.5 (15 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 15 — better | 1 |
| Update frequency | Every 12 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 2 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Oak Driven LLC | 伟胜 林 |
Customer experience
Molarity Abacus
Multi Search Engine
In-app purchases
Molarity Abacus
- Create and Save CompoundsFree
Multi Search Engine
No in-app purchases
Questions
Is Molarity Abacus free?
Is Multi Search Engine free?
Which has better reviews, Molarity Abacus or Multi Search Engine?
Do Molarity Abacus or Multi Search Engine have ads?
Which is updated more often, Molarity Abacus or Multi Search Engine?
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