Comparison

Interval Timer vs ASCII Charts

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

Head to head
About

Interval Timer

This versatile timer app allows users to create custom sequences for various activities, from breathwork and workouts to focus sessions and cooking. It offers AI-powered voice guidance, iCloud synchronization across Apple devices, and a minimalist black-and-white interface.

Highlights
  • Customizable timer chains
  • Breathwork flow builder
  • Intermittent fasting timers
  • Workout routine creator
  • Focus and Pomodoro timers
  • AI voice guidance
  • iCloud sync across devices
Features
Read full description

"This isn't just another timer app. This is your favorite timer app's favorite timer app" - Cody Lee, iDownloadBlog. "What I like most about TimeWave, though, is its clean, black-and-white design" - John Voorhees, MacStories. "Liquid Glass really comes to life on its widgets" - Michael Burkhardt, 9to5Mac. "Best iPhone Apps of July, 2021" - Beau Hamilton, Slashdot. WHAT CAN YOU DO WITH TIMEWAVE? TimeWave allows you to combine your breathwork app, your workout app, your focus timer, cooking timer and much more into one single app. You can use TimeWave for: • Breathwork — build custom breathing flows like 4-7-8 Breathing to lower blood pressure, Physiological Sigh to reduce stress and anxiety, Wim Hof Breathing to increase alertness, Box Breathing to relax and much more. • Intermittent Fasting — Create your own intermittent fasting using various splits like 16:8, 12:12, 5:2, etc. You can create timer-splits for each day or for the entire week. • Workout Routines — create your own workouts by chaining excercise and break durations. You can make Tabata/HIIT workouts or even yoga routines. • 20-20-20 Rule — create a timewave to follow the 20-20-20 rule (Every 20 minutes look at something 20 ft away for 20 seconds) while working with screens to prevent eye-strain. • Focus Timers — create pomodoro timers or any kind of work-break timewaves. You are not restricted to 25 minute session, you can create any sequence that suits your preferences. • Cooking — ever had to keep resetting your timers after each whistle? well, now you wont have to. Just create a timewave for each recipe. • Everything — anything else that involves timed sequential tasks. SPECIAL FEATURES: • TimeWave A.I — TimeWave will tell you what has to be done for how long while the Calibre is running. For eg: "Breathe In For 4 Seconds" so you don't have to look at the screen. • iCloud Sync — Available on Mac, iPad, iPhone and Apple Watch and keeps everything up-to to date on all your devices with iCloud Sync. • Black & White UI — B&W is a lot of colours. If you are anything like us, you'll love our ironically modern black and white UI. MORE: • Personal touch — a hand-crafted Indie app. If you have any questions or feedback, you can reach out to us at timewave.team@gmail.com Privacy Policy: https://timewaveapp.com/privacy Terms of Use: https://timewaveapp.com/terms

About

ASCII Charts

Transform numerical data into visually appealing ASCII art charts. Ideal for data enthusiasts and coders who want to represent numbers creatively. Share your insights with stylish, text-based visualizations.

Highlights
  • Create ASCII art charts
  • Visualize numerical data
  • Share data insights
  • User-friendly interface
  • Supports iPhone and iPad
Features
Read full description

Unlock the power of visual representation with ASCII Chart generator, the must-have app for turning numerical data into stunning ASCII art charts! Whether you’re a data enthusiast, coder, or just someone who loves visualizing numbers, this app is your go-to tool.

Screenshots

Interval Timer4 screens
ASCII Charts3 screens

Verdict

The call

The clearest difference is price: Interval Timer at Free against ASCII Charts's $1.99. Interval Timer also leads on device support (4 vs 2). ASCII Charts's advantage is rating (4.9 vs 4.6) and iOS requirement (17.0 vs 26.0). On review sentiment, ratings volume, update cadence 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

Interval Timer is free to download; ASCII Charts costs $1.99 up front. Interval Timer sells 3 in-app purchases, starting at $4.99 per month and ASCII Charts sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

ASCII Charts holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 25 and 18 respectively. Written reviews point the same way: 86% of Interval Timer's written reviews are positive against 91% of ASCII Charts's.

UpkeepUpdate frequency

Interval Timer ships an update every 3 weeks, ASCII Charts monthly. The most recent releases landed on September 22, 2026 and September 11, 2026 respectively.

Scorecard5 real differences · 5 level
Interval Timer versus ASCII Charts: the parameters behind the verdict, then further details
ParameterInterval TimerASCII Charts
PriceFree — better$1.99
Rating4.6 (25 ratings)4.9 (18 ratings) — better
Positive reviews85.7% of reviews90.9% of reviews — better
Number of ratings25 — better18
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium — betterPaid
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size49 MB2 MB
Age rating4+4+
DeveloperMuhammed Sahil ArayakandyAlexander Kaessner

Customer experience

Interval Timer

All ratings25 ratings
Positive92.0%
Neutral0.0%
Negative8.0%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

ASCII Charts

All ratings18 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive90.9%
Neutral0.0%
Negative9.1%

In-app purchases

3 purchases

Interval Timer

Subscriptions2
  • Monthly Premium$4.991 Month
  • Yearly Premium7 Days trial$24.991 Year
One-time1
  • Lifetime Premium$49.99
1 purchases

ASCII Charts

One-time1
  • Tip$2.99

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is ASCII Charts free?
ASCII Charts costs $1.99, and also offers in-app purchases.
Which has better reviews, Interval Timer or ASCII Charts?
ASCII Charts is rated higher. Interval Timer averages 4.6 out of 5 from 25 ratings, while ASCII Charts averages 4.9 from 18 ratings.
Do Interval Timer or ASCII Charts have ads?
Neither Interval Timer nor ASCII Charts shows ads.
Which is updated more often, Interval Timer or ASCII Charts?
Interval Timer ships an update every 3 weeks, and ASCII Charts monthly. Most recently, Interval Timer was updated on September 22, 2026 and ASCII Charts on September 11, 2026.

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