Comparison

RegEx Knife vs Just Timers

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

Head to head
About

RegEx Knife

This tool simplifies working with regular expressions by allowing users to highlight and edit capture groups, immediately viewing the results. It also facilitates experimentation with regex substitutions, offering a straightforward approach to complex pattern matching.

Highlights
  • Highlight capture groups
  • Edit capture groups
  • See immediate results
  • Experiment with substitutions
  • Works on iPhone and iPad
Features
Read full description

RegEx Knife is an easy and useful tool for working with Regular Expressions.  RegEx Knife is unique in how it allows you to highlight capture groups within a Regular Expression, edit them and immediately see the results. RegEx Knife also makes it easy to experiment with regular expression substitutions. Version 2 retains the simplicity of the original RegEx Knife, with the added advantage that it works on your iPhone as well as your iPad.

About

Just Timers

Create and manage multiple named timers, including counters, stopwatches, and interval timers. Customize alerts with sounds and haptics, and integrate with Shortcuts for advanced automation. Sync across devices and utilize widgets for convenient control.

Highlights
  • Multiple named timers (counter, stopwatch, interval)
  • Customizable alerts (sound, haptics, critical alerts)
  • Shortcuts and URL integration
  • Interval templates for complex routines
  • Widgets and Live Activities support
  • iCloud sync across devices
  • Light and Dark themes
Features
Read full description

Just Timers: The missing timers app Quickly and easily create multiple named counter, stopwatch and interval timers, sync across devices and even use Tags to group timers together Assign alert sounds, haptics and even critical alerts to notify you when a timer expires Assign Shortcuts and URLs to run when timers stop* (more actions coming soon!) Use intervals to create complex workout routines, or go a step deeper with interval templates and Shortcuts integration Use Shortcuts to create complex interval sets and control timers with your voice Use Widgets to keep track of and control your timers, as well as quickly create single-use "self-destruct" timers Sync timers with iCloud across your other devices Supports Live Activities, Widgets and the Dynamic Island Light and Dark Themes * Shortcuts and URLs can only run when the app is open or notification is tapped Need help? Contact support@justtimers.app or find us on Twitter @JustTimers

Screenshots

RegEx Knife4 screens
Just Timers4 screens

Verdict

The call

The clearest difference is in-app purchases: RegEx Knife at none against Just Timers's 8. RegEx Knife also leads on rating (4.3 vs 4.1) and iOS requirement (8.0 vs 17.6). Just Timers's advantage is update cadence (every 4 weeks vs every 3 months). On price, review sentiment, ratings volume 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

Both are free to download. Just Timers sells 8 one-off in-app purchases. RegEx Knife asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

RegEx Knife holds the better App Store score, 4.3 against 4.1. Both are backed by a comparable volume of ratings — 25 and 30 respectively. Written reviews point the same way: 62% of RegEx Knife's written reviews are positive against 57% of Just Timers's.

UpkeepUpdate frequency

RegEx Knife ships an update every 3 months, Just Timers every 4 weeks. Both last shipped on October 24, 2026.

Scorecard5 real differences · 5 level
RegEx Knife versus Just Timers: the parameters behind the verdict, then further details
ParameterRegEx KnifeJust Timers
PriceFreeFree
Rating4.3 (25 ratings) — better4.1 (30 ratings)
Positive reviews61.5% of reviews — better57.5% of reviews
Number of ratings2530 — better
Update frequencyEvery 3 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS8.0 — better17.6
Further details — not scored
Size4 MB26 MB
Age rating4+4+
DeveloperMark AlldrittAaron Dippner

Customer experience

RegEx Knife

All ratings25 ratings
Positive84.0%
Neutral4.0%
Negative12.0%
Written reviews26 reviews
Positive61.5%
Neutral7.7%
Negative30.8%

Just Timers

All ratings30 ratings
Positive73.3%
Neutral3.3%
Negative23.3%
Written reviews87 reviews
Positive57.5%
Neutral13.8%
Negative28.7%

Bugs and requests

RegEx Knife

Not enough reviews yet to summarise bugs or requests.

Just Timers

Reported bugs

32 issues
  • Repeat function causing repeated shortcut execution
  • No sound even with critical alerts on
  • Notifications won't stop after timer completion
  • Interval timer progress lost
  • Stock timers restoring after deletion
Show 27 more
  • Watch app unusable, complications incorrect
  • Timers activating and changing duration after update
  • Timers going off after being stopped
  • Negative timers displayed
  • Alerts not going off
  • Timers with intervals spontaneously resetting
  • Watch notifications inconsistent
  • Timer display stuck
  • Widget display stuck
  • Intervals stuck, skipping inconsistent
  • Choosing sound causes it to play indefinitely
  • Timer resets when modifying sound
  • No default timer settings
  • Manual sync required for phone/watch timers
  • Buttons do nothing or wrong action
  • Siri not working with new version
  • Shortcut action to create timer throws error
  • Can't change timer volume (too loud with headphones)
  • Sound continues to ring after stop/dismiss
  • Contact button in settings not working
  • Can't scroll down to add new custom timer on Watch
  • Watch face off means no alert
  • Alert only happens when app is open on Watch
  • Weak buzz with no customization on Watch
  • App crashes before timer expires
  • App sluggish and buggy
  • Purchasing tiers not clearly disclosed upfront

Requested features

19 requests
  • Menu bar timer on Mac
  • Widgets for home screen
  • Custom sounds for timers
  • Delayed timer start (date/time)
  • Group timers and trigger individual timers
Show 14 more
  • Enter date and time for timers
  • Option to quickly create one-off timers
  • Prevent app launch when tapping Live Activity
  • Templates for timer types
  • Clear explanations for settings
  • Siri integration improvements
  • Ability to set different sounds for each timer
  • More alarming sound options
  • Vibrating function on Watch
  • Improved x-callback integration
  • Rest API improvements
  • Ability to group timers
  • Reset individual timers on Watch easily
  • More alert tones

In-app purchases

None

RegEx Knife

No in-app purchases

8 purchases

Just Timers

One-time8
  • Small Toy$0.99
  • v1 Unlimited Timers (Legacy)$1.99
  • Tier 1$1.99
Show 5 more
  • Medium Toy$2.99
  • v1 Upgrade$2.99
  • Large Toy$4.99
  • Tier 2$4.99
  • Huge Toy$9.99

Questions

Is RegEx Knife free?
RegEx Knife is free to download, with no in-app purchases.
Is Just Timers free?
Just Timers is free to download, with in-app purchases available.
Which has better reviews, RegEx Knife or Just Timers?
RegEx Knife is rated higher. RegEx Knife averages 4.3 out of 5 from 25 ratings, while Just Timers averages 4.1 from 30 ratings.
Do RegEx Knife or Just Timers have ads?
Neither RegEx Knife nor Just Timers shows ads.
Which is updated more often, RegEx Knife or Just Timers?
RegEx Knife ships an update every 3 months, and Just Timers every 4 weeks. Most recently, RegEx Knife was updated on October 24, 2026 and Just Timers on October 24, 2026.

Other comparisons