Comparison

Repeat Timer vs Codex Calc

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

Head to head
About

Repeat Timer

This app provides a simple and effective way to set up recurring reminders for various tasks and routines. It features customizable timers, optional interval cycles, and background operation with visual and audio notifications.

Highlights
  • Customizable repeating timers
  • Optional interval timer cycles
  • Background operation with notifications
  • Multiple alert sounds
  • Visual and audio alerts
  • Precise duration setting
Features
Read full description

The #1 best-selling repeating timer app since 2013 with over 500,000 downloads, Repeat Timer is a simple recurring reminder for all of your repeating tasks and routines – taking your medications, getting up from your desk to stretch, cooking, yoga and meditation, TV time for kids, workouts and more! –– Easy to use: Simply name your timer, set the main timer duration, choose number of repeats and press Start! –– Optional interval timer: Use the optional interval timer that runs between main timer cycles (for example, 2min – 30sec – 2min – 30sec – 2min). Great for interval workouts! –– Works in the background: Run your timer while using other apps or with the phone in sleep mode. You’ll get hands-free visual and audio notifications that you don’t need to stop or dismiss. Downloaded over 600,000 times, our Repeat Timer apps are relied on daily by parents, teachers, coaches and more around the world. Get the app and join them to stay on track with your routines, minimize stress and make your days more productive and efficient! Download Repeat Timer today to streamline all of your routines: ––––––––––––––––––––––– • Easily configure and start your timers in seconds • Repeat timer cycles up to 5 times (up to 99 when you unlock Pro) • See your timer title in notification alerts to avoid confusing them • Choose from 15 high quality alert sounds, including voice commands (40 in Pro) • Engage the optional interval timer for more versatility • Runs in the background with sound and notification alerts • Enjoy the beautiful interface with animations and sound effects • Set your precise duration to the second Thousands of people use Repeat Timer every day: ––––––––––––––––––––––– • Fitness enthusiasts use it for interval, tabata and circuit workouts • Teachers use it to time quizzes, breaks and classroom activities • Coaches use it for drills and practice sessions • Students use it for flash cards study, exams and more • Office workers use it as a reminder to get up and stretch every hour and to look away from the screen to relax your eyes every 20 minutes • Yogis use it for practice and meditation • Parents use it for TV and computer time for the kids • Seniors use it to remember to take their medications and to measure their blood sugar • Productive people use it for the Pomodoro® technique to time work/break intervals Lite / Pro differences: – 1 timer / Up to 10 timers – 5 repeats / 99 repeats – 15 alert sounds / 50 alert sounds Try Lite free and easily upgrade to Pro via in-app purchase. Thank you for taking a look and enjoy! Subscription terms: - The subscription auto-renews at the end of each term. - Payment will be charged to iTunes Account at confirmation of purchase. - The subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. - Account will be charged for renewal within 24-hours prior to the end of the current period. - You may manage your subscription and turn off auto-renewal by going to your Account Settings after purchase. Privacy policy and Terms of Use: https://www.repeattimerapp.com/privacy/

About

Codex Calc

This app offers a powerful yet intuitive calculator experience with a variety of modes including scientific, unit conversion, and tip calculation. It features a customizable interface and a detailed history tape for all your calculations.

Highlights
  • Full scientific calculator functions
  • Unit converter
  • Tip calculator
  • RPN mode
  • History tape
  • Customizable interface
  • Multiple visual themes
Features
Read full description

Codex Calc is the calculator for the rest of us: easy and intuitive, without sacrificing power and capabilities. Calculator • Unit Converter • Tip Calculator • RPN Mode • Full Scientific • History Tape All the power you need, wrapped in a beautifully designed interface that's simple without being simplistic. ADAPTS TO YOU Do you like big buttons, or small? Like minimalist interfaces, or are you a fan of bright and flashy? Prefer small fonts to see more detail, or big text and easy to read buttons? Codex Calc adapts itself to the way *you* like to work. FEATURES Everything you'd expect, plus: • History tape records all entries and calculations • Full suite of standard and scientific calculator functions • Unit conversion mode for forward and reverse conversions • Full tip calculator mode - taxes, tip, per-person amounts • RPN mode fully integrated • Rotation lock and sound on/off toggles • Seven different professionally designed visual themes • Multi-number memory and full set of memory-store operators • Full control over history tape font size • Single and multiple-line history tape formats • Large and small button sizes • Settings for customization (number formatting, behavior of clear key, display of calculation details, much more) Calculations: • Trig functions in degrees and radians • Log and power/exponentials • Scientific notation / exponent mode • Rounding and truncating • Random number generation • Parenthesis and sub-expressions ...and more! INTUITIVE TOUCH INTERFACE Take full advantage of your device's capabilities: • Overlays - rather than making buttons smaller to fit more, Codex Calc uses intuitive overlays on the existing buttons. • Popup Menus - hidden until you need them, pop-up context menus give you more power when the default action isn't quite what you need. • Zoomable History Tape - Tap the history tape to expand for more detail, change the font size, copy contents to clipboard, or forward as an email. View as single-lines to save space, or use multi-line view for more detail. • Multiple Flexible Layouts - Portrait and landscape, large and small buttons, and seven different graphical themes. • Easy-Touch Everything - Codex Calc's entire design approach revolves around "touch to activate." Tap the tape to see it bigger, swipe to scroll, long-press a button for more options, tap the display to copy or paste, etc.

Screenshots

Repeat Timer3 screens
Codex Calc4 screens

Verdict

The call

The clearest difference is price: Repeat Timer at Free against Codex Calc's $0.99. Repeat Timer also leads on rating (4.5 vs 4.0) and update cadence (monthly vs every 6 months). Codex Calc's advantage is review sentiment (100% vs 64%) and in-app purchases (none vs 7). On 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

Repeat Timer is free to download; Codex Calc costs $0.99 up front. Repeat Timer sells 7 in-app purchases, starting at $2.99 per month. Codex Calc asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Repeat Timer holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Repeat Timer has 7.4K ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 64% of Repeat Timer's written reviews are positive against 100% of Codex Calc's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Repeat Timer ships an update monthly, Codex Calc every 6 months. The most recent releases landed on September 24, 2026 and June 5, 2026 respectively.

Scorecard8 real differences · 2 level
Repeat Timer versus Codex Calc: the parameters behind the verdict, then further details
ParameterRepeat TimerCodex Calc
PriceFree — better$0.99
Rating4.5 (7.4K ratings) — better4.0 (1 ratings)
Positive reviews64.3% of reviews100.0% of reviews — better
Number of ratings7.4K — better1
Update frequencyMonthly — betterEvery 6 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS17.012.0 — better
Further details — not scored
Size99 MB11 MB
Age rating4+4+
DeveloperApplorium LtdDriftwood Studio Software LLC

Customer experience

Repeat Timer

All ratings7,381 ratings
Positive88.5%
Neutral3.9%
Negative7.6%
Written reviews375 reviews
Positive64.3%
Neutral7.2%
Negative28.5%

Codex Calc

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

7 purchases

Repeat Timer

Subscriptions4
  • Repeat Timer Pro3 Days trial$2.991 Month
  • Repeat Timer Pro$3.991 Month
  • Repeat Timer Pro3 Days trial$9.991 Year
Show 1 more
  • Repeat Timer Pro$19.991 Year
One-time3
  • RT Pro customers' upgrade$9.99
  • Upgrade to Pro$19.99
  • Upgrade to Pro$39.99
None

Codex Calc

No in-app purchases

Questions

Is Repeat Timer free?
Repeat Timer is free to download, with in-app purchases available.
Is Codex Calc free?
Codex Calc costs $0.99, with no in-app purchases.
Which has better reviews, Repeat Timer or Codex Calc?
Repeat Timer is rated higher. Repeat Timer averages 4.5 out of 5 from 7.4K ratings, while Codex Calc averages 4.0 from 1 ratings.
Do Repeat Timer or Codex Calc have ads?
Neither Repeat Timer nor Codex Calc shows ads.
Which is updated more often, Repeat Timer or Codex Calc?
Repeat Timer ships an update monthly, and Codex Calc every 6 months. Most recently, Repeat Timer was updated on September 24, 2026 and Codex Calc on June 5, 2026.

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