Comparison

HPLC Calculator vs Molarity Calcs

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

Head to head

Molarity Calculator

★ 5.01 ratingsView app →

About

HPLC Calculator

Features

Read full description

This app is a powerful tool designed for R&D and QC departments, helping streamline essential lab and HPLC calculations. Ask questions and troubleshoot chromatography challenges Share knowledge and best practices Discuss methods, instrumentation, and real-world lab scenarios Connect with scientists, students, and professionals globally It supports: System Suitability Calculations for HPLC Buffer Preparation and pH Adjustments Linearity and Regression Analysis General Reagent and Solution Calculations In addition, the Chromatography Forum built into the app offers a collaborative space to: Ask questions and troubleshoot chromatography challenges Share knowledge and best practices Discuss methods, instrumentation, and real-world lab scenarios Connect with scientists, students, and professionals globally Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Molarity Calcs

This app helps users quickly calculate molarity for various chemistry needs. It supports calculations for mass to volume, volume to mass, and dilutions, making it a handy tool for students and professionals.

Highlights

Mass to volume calculations
Volume to mass calculations
Dilution calculations
Fast and efficient
User-friendly interface

Read full description

Calculate mass to add to a volume, volume to add to a mass, or make a dilution. Fast.

Screenshots

HPLC Calculator4 screens

Molarity Calcs1 screens

Verdict

The call

The clearest difference is in-app purchases: Molarity Calcs at none against HPLC Calculator's 6. Molarity Calcs also leads on ads (none vs shown) and update cadence (every 4 days vs every 5 weeks). HPLC Calculator's advantage is iOS requirement (13.0 vs 15.5). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. HPLC Calculator sells 6 in-app purchases, starting at $0.59 per month. Molarity Calcs asks for nothing beyond the download.

UpkeepUpdate frequency

HPLC Calculator ships an update every 5 weeks, Molarity Calcs every 4 days. Both last shipped on November 3, 2026.

Scorecard4 real differences · 6 level

HPLC Calculator versus Molarity Calcs: the parameters behind the verdict, then further details
Parameter	HPLC Calculator	Molarity Calcs
Price	Free	Free
Rating	—	5.0 (1 ratings) — better
Positive reviews	—	100.0% of reviews
Number of ratings	—	1 — better
Update frequency	Every 5 weeks	Every 4 days — better
Ads	Yes	No — better
In-app purchases	Yes	No — better
Monetization	—	Free
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	13.0 — better	15.5
Further details — not scored
Size	66 MB	4 MB
Age rating	4+	4+
Developer	Youhana Mehany	Jeff Schoellerman

In-app purchases

6 purchases

HPLC Calculator

Subscriptions2

Remove Ads$0.591 Month
Remove Ads$4.991 Year

One-time4

50K Token Top-Up$2.99
100K Token Top-Up$4.99
250K Token Top-Up$9.99

Show 1 more

500K Token Top-Up$12.99

None

Molarity Calcs

No in-app purchases

Questions

Is HPLC Calculator free?

HPLC Calculator is free to download, with in-app purchases available.

Is Molarity Calcs free?

Molarity Calcs is free to download, with no in-app purchases.

Do HPLC Calculator or Molarity Calcs have ads?

HPLC Calculator shows ads; Molarity Calcs does not.

Which is updated more often, HPLC Calculator or Molarity Calcs?

HPLC Calculator ships an update every 5 weeks, and Molarity Calcs every 4 days. Most recently, HPLC Calculator was updated on November 3, 2026 and Molarity Calcs on November 3, 2026.