Comparison

Molarity Abacus vs Multi Search Engine

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

Head to head
About

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.

Highlights
  • Molarity calculation
  • Solute mass calculation
  • Total solution volume calculation
  • Molecular weight calculation
  • Customizable units
  • Pre-configured compounds
  • Create and store custom compounds
Features
Read full description

- 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/)

About

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.

Highlights
  • Switch between search engines
  • Integrates with Safari
  • Fast search functionality
  • Supports iOS, iPadOS, and macOS
  • Single purchase for full features
Features
Read full description

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

Molarity Abacus4 screens
Multi Search Engine2 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
Molarity Abacus versus Multi Search Engine: the parameters behind the verdict, then further details
ParameterMolarity AbacusMulti Search Engine
PriceFree — better$0.99
Rating4.5 (15 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings15 — better1
Update frequencyEvery 12 monthsEvery 7 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPodiPhone, iPad, iPod, Mac — better
Requires iOS8.0 — better15.0
Further details — not scored
Size2 MB2 MB
Age rating4+4+
DeveloperOak Driven LLC伟胜 林

Customer experience

Molarity Abacus

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews15 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Multi Search Engine

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Molarity Abacus

One-time1
  • Create and Save CompoundsFree
None

Multi Search Engine

No in-app purchases

Questions

Is Molarity Abacus free?
Molarity Abacus is free to download, with in-app purchases available.
Is Multi Search Engine free?
Multi Search Engine costs $0.99, with no in-app purchases.
Which has better reviews, Molarity Abacus or Multi Search Engine?
Multi Search Engine is rated higher. Molarity Abacus averages 4.5 out of 5 from 15 ratings, while Multi Search Engine averages 5.0 from 1 ratings.
Do Molarity Abacus or Multi Search Engine have ads?
Neither Molarity Abacus nor Multi Search Engine shows ads.
Which is updated more often, Molarity Abacus or Multi Search Engine?
Molarity Abacus ships an update every 12 months, and Multi Search Engine every 7 months. Most recently, Molarity Abacus was updated on September 20, 2026 and Multi Search Engine on September 19, 2026.

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