Comparison

Quitzilla vs Kotozute

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

Head to head
About

Quitzilla

This app helps you overcome addictions and bad habits by tracking your progress, calculating money saved, and providing motivational content. Analyze your habits, set goals, and stay motivated with daily quotes and personalized reasons to quit.

Highlights
  • Track multiple habits
  • Calculate money saved
  • Personalized motivation
  • Detailed statistics
  • Customizable habits
  • Quote of the day
Read full description

Overcoming addiction is hard. With Quitzilla you can follow all of your bad habits or addictions and use the app as help to analyze them and beat them. Stay clean and sober, overcome any addiction or habit which is holding you back from becoming a better version of yourself. BAD HABITS TRACKER Commit to quit "cold turkey"! You can add the exact day of the last time you did it, the money you usually spend on it, and let it serve as your starting point. From then on you can get tons of interesting statistics about it. The abstinence time and money saved are the leading statistics. REWARDS The rewards feature is actually a calculation of the money saved. For example, if you’ve spent $100 on gambling weekly, and you haven’t gambled for a week, then those $100 are your weekly reward. This serves as great motivation to quit alcohol, cigarettes, junk food, or anything similar that costs us money and is bad for our body and health. MOTIVATION Quitzilla also features a motivation tab in which you can add your own reasons to quit your addiction and bad habits. Simply list all of the benefits of quitting and let them serve you as a motivation for you to continue your journey of overcoming addictions. USEFUL STATISTICS The app keeps relevant statistics about each of your bad habits. From entering the day you quit and maximum abstinence period, to keep a record of the money, time spent on addiction, and average abstinence period. QUOTE OF THE DAY To keep you motivated and focused in your quest to get rid of the addictions, Quitzilla will display you “Quote of the Day” from various famous authors. FEATURES: - track multiple habits simultaneously. - easy and simple tracking of bad habits and addictions - help in quitting alcohol, drug, caffeine, food, sugar, etc. - customize your bad habits - rewards system - motivation with reasons why to quit a certain habit - detailed statistics about each addiction - quote of the day for motivation and keeping focus Terms of service: https://www.despdev.com/terms_of_use_quitzilla_ios.html Privacy policy: https://www.despdev.com/privacy_policy_quitzilla_ios.html

About

Kotozute

Features
Read full description

Declare a goal. Share one link. The people who love you write to you and their words arrive on your Lock Screen at the moment they chose. Kotozute is not a chat. It is a quiet channel from the people who matter to the one person chasing something: a first 10K, a degree, a first year sober, a move across the world. Each message is short, written on purpose, and delivered at a time the sender picked now, on a date, the night before, or sealed until you need it. WRITE FROM ANYWHERE Anyone can write to you from your link no account, no app. With the app, they can also send a photo, a voice note, a message in their own handwriting that replays exactly as it was written, sealed capsules, and a chain of messages that unlocks one day at a time. IT ARRIVES LIKE A LETTER Twelve papers, each with its own typeface and its own way of opening. The same letter on your Lock Screen, in your widget, and in the Live Activity the moment it lands. Wax seals on capsules. Cracked open when the day comes. KEEP WHAT MATTERED Swipe to keep or let go. What you keep goes into your archive by person, with the small stats that matter: who wrote most, your longest streak. When the goal is done, everything you kept becomes a book: a cover with your photo, a page per message, printable at A5. YOUR CIRCLE, ON YOUR TERMS Mute, block or report anyone at any time. Turn your link off in one tap. Your goals and messages live in your own iCloud there is no Kotozute server holding them, and nothing to sign up for. ON-DEVICE INTELLIGENCE (iPhone 15 Pro and later) Suggestions for what to write, a path for your goal made from how long you have, a message read aloud in the sender's own Personal Voice, a summary of your week. All of it runs on your iPhone and none of it leaves it. Everything works without it. KOTOZUTE PRO Free: one goal, messages that arrive now, three papers, the last 30 days. Pro: unlimited goals, scheduled delivery, sealed capsules and chains, all twelve papers and every brush, the full archive, and the book. Whoever pays unlocks their circle — nobody pays to receive. Kotozute Pro is an auto-renewing subscription, monthly or yearly. Payment is charged to your Apple ID at confirmation of purchase. It renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in Settings → Apple ID → Subscriptions. Terms: https://kotozute.vercel.app/terms · Privacy: https://kotozute.vercel.app/privacy

Screenshots

Quitzilla4 screens
Kotozute4 screens

Verdict

The call

The clearest difference is update cadence: Kotozute at every 5 days against Quitzilla's every 10 months. Kotozute also leads on iOS requirement (17.0 vs 26.0). On price, ads, 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

Both are free to download. Quitzilla sells 8 in-app purchases, starting at $5.99 per 7 days and Kotozute sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Quitzilla ships an update every 10 months, Kotozute every 5 days. The most recent releases landed on November 11, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Quitzilla versus Kotozute: the parameters behind the verdict, then further details
ParameterQuitzillaKotozute
PriceFreeFree
Rating4.8 (1.6K ratings) — better—
Positive reviews74.9% of reviews—
Number of ratings1.6K — better—
Update frequencyEvery 10 monthsEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone
Requires iOS26.017.0 — better
Further details — not scored
Size50 MB48 MB
Age rating12+4+
DeveloperAndrii HulaVictor Lagunas

Bugs and requests

Quitzilla

Reported bugs

2 issues
  • Inability to set language to Chinese
  • Premium not working after device change

Requested features

5 requests
  • Add widget option
  • Allow more than 2 habits in free version
  • Offer one-time purchase option for premium
  • Add ability to remove motivational messages
  • Improve sync and time tracking accuracy

Kotozute

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Quitzilla

Subscriptions7
  • 1 Week$5.997 Days
  • 1 Month$5.991 Month
  • 1 Month$7.991 Month
Show 4 more
  • 1 Year1 Year trial$29.991 Year
  • 1 Year$29.991 Year
  • 1 Year7 Days trial$29.991 Year
  • 1 Year7 Days trial$39.991 Year
One-time1
  • Lifetime$89.99
4 purchases

Kotozute

Subscriptions2
  • Kotozute Pro Monthly7 Days trial$4.991 Month
  • Kotozute Pro7 Days trial$29.991 Year
One-time2
  • Goal Pass$4.99
  • The Book$9.99

Questions

Is Quitzilla free?
Quitzilla is free to download, with in-app purchases available.
Is Kotozute free?
Kotozute is free to download, with in-app purchases available.
Do Quitzilla or Kotozute have ads?
Neither Quitzilla nor Kotozute shows ads.
Which is updated more often, Quitzilla or Kotozute?
Quitzilla ships an update every 10 months, and Kotozute every 5 days. Most recently, Quitzilla was updated on November 11, 2026 and Kotozute on October 31, 2026.

Other comparisons