Comparison

TimerZ vs Molar Mass Calculator Pro

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

Head to head
About

TimerZ

This utility app allows users to set multiple countdown timers simultaneously, with options for custom alarms, background operation, and history logging. It offers advanced features like chained timers and Dropbox integration for saving and loading data.

Highlights
  • Multiple simultaneous timers
  • Background operation
  • Customizable alarms and sounds
  • Timer chaining and looping
  • Activity history logging
  • Dropbox integration
Features
Read full description

Why did we create another timer app when there are already dozens in the App Store? Because “Timer Z is the Last Timer You’ll Ever Need”! It's simple to use yet full featured. For example, you can easily set a timer to give a 15 seconds warning before another alarming at 1 minute mark. Some unique features of Timer Z are: - A simple count down timer can be set and started with just 3 taps - Multiple timers can be set and can run simultaneously - The timer will fire even if the Timer Z app is running in the background - Each timer can be named and set to expire after a time interval, or at a specific point in time like an alarm - While a timer is running, it can show remaining time or elapsed time since start, either in full hour/min/sec or just seconds - Background graphics shows the percent of time remaining - A running timer can be paused and resumed to continue where it left off - When a timer expires, there is a choice of alarm sounds, vibration, or no sound at all - Optionally the alarm can continue to sound until acknowledged - Upon expiration, a timer can start another timer, including itself in a loop - Timer activity history is saved and can be emailed, great for record keeping - Timer data can be saved and loaded from a linked Dropbox account Whether you’re looking for a simple timer, or one with all the bells-and-whistles, Timer Z is the best choice! NOTE: this version is limited to 2 timers. Use the convenient in-app purchase of Pro feature to add an unlimited number of timers, and eliminate all advertisements. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Molar Mass Calculator Pro

Easily calculate the molar mass of chemical compounds by simply entering the formula. This app offers instant, efficient, and intuitive calculations with a beautiful user interface, making it ideal for students.

Highlights
  • Molar mass calculation
  • Formula input
  • Instant results
  • Efficient processing
  • Simple interface
  • Beautiful UI
Features
Currently charting
Read full description

A must-have for students !!! This application calculates for you the molar mass of a chemical compound. Just enter your formula. Features: -Modern -Instant calculation -Efficient -Simple -Beautiful user interface -Intuitive

Screenshots

TimerZ4 screens
Molar Mass Calculator Pro4 screens

Verdict

The call

The clearest difference is price: TimerZ at Free against Molar Mass Calculator Pro's $2.99. TimerZ also leads on update cadence (every 3 months vs every 17 months). Molar Mass Calculator Pro's advantage is review sentiment (100% vs 60%) and in-app purchases (none vs 2). On rating, ratings volume, ads 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

TimerZ is free to download; Molar Mass Calculator Pro costs $2.99 up front. TimerZ sells 2 in-app purchases, starting at $0.99 per month. Molar Mass Calculator Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for TimerZ against 4.8 for Molar Mass Calculator Pro. Both are backed by a comparable volume of ratings — 10 and 6 respectively. Written reviews are what separate them: 60% of TimerZ's written reviews are positive against 100% of Molar Mass Calculator Pro's.

UpkeepUpdate frequency

TimerZ ships an update every 3 months, Molar Mass Calculator Pro every 17 months. The most recent releases landed on July 9, 2026 and September 10, 2026 respectively.

Scorecard7 real differences · 4 level
TimerZ versus Molar Mass Calculator Pro: the parameters behind the verdict, then further details
ParameterTimerZMolar Mass Calculator Pro
PriceFree — better$2.99
Rating4.7 (10 ratings)4.8 (6 ratings) — better
Positive reviews60.0% of reviews100.0% of reviews — better
Number of ratings10 — better6
Update frequencyEvery 3 months — betterEvery 17 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank—#195 — better
DevicesiPhone, iPad, Apple TViPhone, iPad, iPod, Apple Watch — better
Requires iOS18.615.4 — better
Further details — not scored
Size65 MB7 MB
Age rating4+4+
DeveloperSquawk Studio, LLCPylyp Chernov

Customer experience

TimerZ

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews10 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

Molar Mass Calculator Pro

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

TimerZ

Subscriptions1
  • Pro Monthly$0.991 Month
One-time1
  • Timer Z Pro$4.99
None

Molar Mass Calculator Pro

No in-app purchases

Questions

Is TimerZ free?
TimerZ is free to download, with in-app purchases available.
Is Molar Mass Calculator Pro free?
Molar Mass Calculator Pro costs $2.99, with no in-app purchases.
Which has better reviews, TimerZ or Molar Mass Calculator Pro?
Molar Mass Calculator Pro is rated higher. TimerZ averages 4.7 out of 5 from 10 ratings, while Molar Mass Calculator Pro averages 4.8 from 6 ratings.
Do TimerZ or Molar Mass Calculator Pro have ads?
Neither TimerZ nor Molar Mass Calculator Pro shows ads.
Which is updated more often, TimerZ or Molar Mass Calculator Pro?
TimerZ ships an update every 3 months, and Molar Mass Calculator Pro every 17 months. Most recently, TimerZ was updated on July 9, 2026 and Molar Mass Calculator Pro on September 10, 2026.

Other comparisons