Comparison

MathTech min vs Entropy Alarm

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

Head to head
About

MathTech min

Easily create mathematical equations and documents on your mobile device. Features a comprehensive character set and operators, allowing for on-the-fly selection without special formatting. Documents can be shared and collaborated on.

Highlights
  • Text and equation editor
  • Upper/lower-case Latin and Greek characters
  • Mathematical operators
  • No special formatting required
  • Collaborative document editing
  • Social media sharing
Features
Read full description

Want to create mathematical equations on your device? MathTech provides a text and equation editor with complete upper- and lower-case Latin and Greek character sets coupled with most mathematical operators, all selectable on the fly from single key touches. No special language or formatting is required. Documents can be worked on collaboratively and shared on the popular social media outlets.

About

Entropy Alarm

This alarm app automatically manages your alarms, clearing them when no longer needed. It offers three distinct alarm types to keep your list organized and includes features for travel, holidays, and custom sounds. Live Activities and widgets provide at-a-glance information.

Highlights
  • Self-clearing alarms
  • Burner, Frozen, and Crystallized alarm types
  • Follow me and Stay put travel modes
  • Holiday and custom day off skipping
  • Live Activities and Home Screen widget
  • Siri and Shortcuts integration
Features
Read full description

Meet an alarm app that knows when to get out of the way. Entropy Alarm was built by a developer with ADHD who wanted to create an alarm app for those who use alarms when a calendar or reminder app won't do. Entropy Alarm creates alarms that show up when you need them and clear themselves from your list, automatically, when you no longer need them! Entropy Alarm is a different kind of alarm clock, built around three alarm types so your list stays honest. Set something once and let it disappear. Repeat on a schedule until a date you choose. Or keep a routine that stays put until you delete it. Three alarm types: * Burner: a one-time alarm that deletes itself after you stop it * Frozen: a repeating alarm with a thaw date. It fires through that last day, then burns away * Crystallized: a permanent routine that repeats until you delete it Travel and time off: * Follow me keeps the same local time when you travel * Stay put keeps the alarm in its home time zone Alarms that ring only when you want or need them to * Skip holidays on Frozen and Crystallized alarms, with calendars for the US, UK, Canada, Australia, Germany, Spain, Mexico, and France * Add your own days off, like PTO or a birthday Sounds and extras: * Choose from built-in ringtones or import your own audio from Files * Snooze from 1 to 30 minutes, or turn it off * Live Activities show your snooze countdown on the Lock Screen and Dynamic Island * A Home Screen widget keeps your next alarm in sight * Siri, Shortcuts, and Control Center can start a new Burner, Frozen, or Crystallized alarm Make it yours: * Name alarms and give them an emoji * Pick a look: Basic, Bold, Dramatic, Frosted, or Burnout * Light, dark, or follow your device theme * 12-hour or 24-hour time Keep track: * Logs show what burned, thawed, snoozed, and fired * Stats and achievements if you like a little extra spark Entropy Alarm uses Apple's AlarmKit so alarms can still ring through Focus and Silent mode, the same way Clock alarms do. A short welcome walkthrough explains the three alarm types, and you can replay it anytime from the Profile tab. No ads. No in-app purchases. Your alarms stay on locally your device.

Screenshots

MathTech min3 screens
Entropy Alarm4 screens

Verdict

The call

The clearest difference is price: MathTech min at Free against Entropy Alarm's $2.99. MathTech min also leads on ratings volume (4 vs 1) and iOS requirement (14.0 vs 26.1). Entropy Alarm's advantage is rating (5.0 vs 2.0) and ads (none vs shown). On in-app purchases 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

MathTech min is free to download; Entropy Alarm costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Entropy Alarm holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

MathTech min ships an update every 5 months, Entropy Alarm every 5 days. The most recent releases landed on September 18, 2026 and October 9, 2026 respectively.

Scorecard7 real differences · 3 level
MathTech min versus Entropy Alarm: the parameters behind the verdict, then further details
ParameterMathTech minEntropy Alarm
PriceFree — better$2.99
Rating2.0 (4 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews—
Number of ratings4 — better1
Update frequencyEvery 5 monthsEvery 5 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS14.0 — better26.1
Further details — not scored
Size68 MB9 MB
Age rating12+4+
DeveloperKelly Technology Inc.Mark Garcia

Customer experience

MathTech min

All ratings4 ratings
Positive25.0%
Neutral0.0%
Negative75.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Entropy Alarm

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

In-app purchases

None

MathTech min

No in-app purchases

None

Entropy Alarm

No in-app purchases

Questions

Is MathTech min free?
MathTech min is free to download, with no in-app purchases.
Is Entropy Alarm free?
Entropy Alarm costs $2.99, with no in-app purchases.
Which has better reviews, MathTech min or Entropy Alarm?
Entropy Alarm is rated higher. MathTech min averages 2.0 out of 5 from 4 ratings, while Entropy Alarm averages 5.0 from 1 ratings.
Do MathTech min or Entropy Alarm have ads?
MathTech min shows ads; Entropy Alarm does not.
Which is updated more often, MathTech min or Entropy Alarm?
MathTech min ships an update every 5 months, and Entropy Alarm every 5 days. Most recently, MathTech min was updated on September 18, 2026 and Entropy Alarm on October 9, 2026.

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