Comparison

Kotekan vs Costly

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

Head to head
About

Kotekan

Easily track and manage all your recurring expenses and subscriptions in one place. Get timely reminders for upcoming payments and visualize your spending with insightful reports and graphs. Organize your finances with custom labels and service icons.

Highlights
  • Easy subscription input
  • Reminder notifications
  • Service icon customization
  • Flexible payment frequencies
  • Categorization with labels
  • Analysis reports and graphs
  • Home screen widget
Features
Read full description

【Let's manage your subscriptions and fixed costs with Kotekan!】 Kotekan is a service that allows you to easily manage the fixed costs of your daily life and the subscriptions. Kotekan gives you the best experience in subscriptions/fixed costs management than any other app! It's very simple and easy to use, just start Kotekan app and register your data. By registering multiple data, the total amount and percentage will be displayed in an easy-to-read graph. You can also categorize your subscriptions by adding a label to each piece of data. 【App Features】 The application is very simple to use and can be used by anyone without stress. ◉Easily input and register your subscriptions Open app, input the name of service, fee, frequency of paying, and first bill date to register your sub. You can also enter the URL of the service, write a note, or attach a photo or screenshot, so you can avoid forgetting what it was about. ◉Reminder Notification Kotekan will send you a reminder a few days before your next renewal date (payment date) so that you don't forget your payment date. We will also remind you one day before and on the day of your trial subscription. ◉Maintain clarity by registering service icons and the perfect icon for your registration details. You can choose from approximately 100 different icons to manage your subscriptions. Kotekan will also suggest the perfect icon when you type in the name of a service. ◉Flexible payment frequencies You can choose monthly, annual, or semi-annual frequency to register your subscriptions. so you don't have to calculate and convert monthly or annual amounts yourself. ◉Labels for categolizing your subscriptions. Data can be labeled for easy sorting. You can also check the analysis data for each label. (e.g. Hobbies, Beauty, Games, Work, etc...) ◉Analysis Report You can check the total amount and percentage, and see a graph showing the amount you plan to pay this year based on the data you have registered. You can also view analysis data by label. ◉Currency support Dollars and yen can be used for registration. ◉Payment history You can view your payment history for the past 12 months based on the data you have registered. ◉ Home Widget You can place Kotekan widget on your home screen, which allows you to quickly check your next payment due of your subs. ◉Sign up/Sign in Kotekan can be used without registering, but you can securely store and restore your data by linking your account with Kotekan in case you change your smartphone model. *You will need to use your Apple or Google account to link your account. ◉Japanese and English language support. ◉Dark mode is supported. 【Kotekan Premium】 Kotekan Premium is a premium service that provide you with fantastic features to make managing subscriptions more convenient. If you subscribe to Kotekan Premium, you'll get below features: - Unlimited subscriptions. - Unlimited labels. - Unlimited reminders. - Home Widget - No more ads. - Early access to upcoming great features. Regarding its price, it's almost the same as the price of a cup of coffee every month!! For more detail, please visit "Kotekan Premium" screen from "Settings" screen. You also have a 2-week free trial period, which you don't have to pay a bill if you aren't satisfied with Kotekan Premium before the trial period ends. (*Free trial for eligible new members only / The trial period might be changed witout any announcement.)

About

Costly

Visualize and manage all your recurring expenses in one place. Track subscription due dates, amounts, and spending trends with intuitive graphs and a clean interface. Avoid missed payments and gain clarity on your financial commitments.

Highlights
  • Auto-updating billing dates
  • Visual spending timeline
  • Track amounts and categories
  • Flexible billing intervals
  • Spending totals by period
  • Calendar and history views
  • Spending breakdown graphs
Features
Read full description

Make your bills visible. Take control of your subscriptions. Costly is a smart way to track your subscriptions and recurring expenses. It helps you see exactly what's due, when, and how much—all in one clean, visual interface. With color-coded bars and intuitive graphs, you’ll know at a glance when your next payments are coming up. Just add a subscription once, and Costly keeps everything up to date automatically. Say goodbye to missed bills and confusing spreadsheets. □ Key Features ・Auto-updating billing dates ・Visual timeline with blue progress bars ・Track amounts, categories, notes, and more ・Flexible billing intervals: weekly, monthly, quarterly, semiannual, annual, and beyond ・Auto-calculated spending totals by year, month, or day ・Filter by billing frequency or category ・Calendar view for an easy look at upcoming payments ・History tab to review past payments ・Graphs to visualize spending breakdowns ・Price list and upcoming payment forecast ・Light and dark mode support □ Use Cases ・Manage all your streaming, music, and app subscriptions in one place ・Track annual or semiannual expenses like insurance and taxes ・Keep family or shared expenses organized by category ・Use graphs to spot trends and optimize your spending habits ・Pair with a budgeting app as your go-to fixed cost manager □ Perfect For ・Anyone overwhelmed by growing subscriptions ・People who want to know exactly when and how much they’re paying ・Users who don’t stick with full budgeting apps, but still want spending clarity ・Those who tend to forget annual or semiannual renewal dates ・Anyone looking for a simple, clean app to track recurring costs □ Pricing All core features are free to use. Some advanced features are available via subscription. □ Development Philosophy Costly is independently developed to help you manage the hidden costs of everyday life—with less stress and more clarity. We’re constantly improving the app based on your feedback and suggestions. Download Costly now and make subscription and bill tracking effortless. Terms of Service (EULA):https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy:https://lomworks.com/legal/privacy-app

Screenshots

Kotekan4 screens
Costly4 screens

Verdict

The call

The clearest difference is ads: Costly at none against Kotekan's shown. Kotekan's advantage is iOS requirement (14.0 vs 17.0). On price, review sentiment, update cadence and in-app purchases 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. Kotekan sells 2 in-app purchases, starting at $0.99 per month and Costly sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Kotekan ships an update every 2 weeks, Costly every 3 weeks. The most recent releases landed on September 21, 2026 and September 12, 2026 respectively.

Scorecard2 real differences · 8 level
Kotekan versus Costly: the parameters behind the verdict, then further details
ParameterKotekanCostly
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews88.9% of reviews — better85.7% of reviews
Number of ratings2 — better—
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS14.0 — better17.0
Further details — not scored
Size62 MB7 MB
Age rating4+4+
DeveloperSuguru KishimotoYUUSUI KASHIWAGI

Customer experience

Kotekan

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive88.9%
Neutral11.1%
Negative0.0%

Costly

Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

In-app purchases

2 purchases

Kotekan

Subscriptions2
  • Monthly Subscription14 Days trial$0.991 Month
  • Annual Subscription14 Days trial$9.991 Year
2 purchases

Costly

Subscriptions2
  • Monthly$1.991 Month
  • Yearly1 Month trial$14.991 Year

Questions

Is Kotekan free?
Kotekan is free to download, with in-app purchases available.
Is Costly free?
Costly is free to download, with in-app purchases available.
Do Kotekan or Costly have ads?
Kotekan shows ads; Costly does not.
Which is updated more often, Kotekan or Costly?
Kotekan ships an update every 2 weeks, and Costly every 3 weeks. Most recently, Kotekan was updated on September 21, 2026 and Costly on September 12, 2026.

Other comparisons