Billey vs Kotekan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Billey
Easily manage all your recurring payments in one place. This tool helps you track subscriptions to avoid unwanted charges and stay organized.
- Subscription tracking
- Payment management
- Avoid unwanted charges
- Stay organized
- Simple interface
Read full descriptionHide full description
Billey is a dead simple, handy tool to keep track of your subscriptions and stay relaxed.
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.
- Easy subscription input
- Reminder notifications
- Service icon customization
- Flexible payment frequencies
- Categorization with labels
- Analysis reports and graphs
- Home screen widget
Read full descriptionHide 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.)
Screenshots
Verdict
The clearest difference is review sentiment: Kotekan at 89% against Billey's 30%. Kotekan also leads on rating (5.0 vs 4.5) and update cadence (every 2 weeks vs every 3 months). Billey's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, monetization model 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
Both are free to download. Kotekan sells 2 in-app purchases, starting at $0.99 per month. Billey asks for nothing beyond the download.
Kotekan holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Billey has 13 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 30% of Billey's written reviews are positive against 89% of Kotekan's.
Billey ships an update every 3 months, Kotekan every 2 weeks. The most recent releases landed on September 25, 2026 and September 21, 2026 respectively.
| Parameter | Billey | Kotekan |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (13 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 30.0% of reviews | 88.9% of reviews — better |
| Number of ratings | 13 — better | 2 |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 90 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | Dario Ielardi | Suguru Kishimoto |
Customer experience
Billey
Kotekan
In-app purchases
Billey
No in-app purchases
Kotekan
- Monthly Subscription14 Days trial$0.991 Month
- Annual Subscription14 Days trial$9.991 Year






