Stackin ¥en

Terms of Use

Last updated · July 7, 2026

These Terms of Use (“Terms”) are an agreement between you and Stackin ¥en (“we,” “us,” or “our”) covering your use of the Stackin ¥en app. By downloading or using the App, you agree to these Terms. If you don’t agree, please don’t use the App.

1

Acceptance

By creating an account or using the App, you confirm that you’ve read and agree to these Terms and to our Privacy Policy. We may update these Terms from time to time, as described in Section 13.

2

What Stackin ¥en is

Stackin ¥en is a tool for logging and organizing your personal income and expenses. It is provided for your own personal, informational use.

Not financial advice Stackin ¥en helps you track your money — it does not provide financial, investment, tax, accounting, or legal advice. Any decisions you make based on what you see in the App are your own. For advice about your specific situation, please consult a qualified professional.
3

Eligibility

You must be at least 13 years old to use the App. If you are under the age of majority where you live, you may use the App only with the involvement of a parent or guardian. By using the App, you confirm you meet these requirements and that the information you provide is accurate.

4

Your account

You can begin using the App anonymously, and later add an email address to secure your account. You are responsible for keeping access to your account and email secure, and for the activity that happens under your account. Let us know promptly if you believe your account has been accessed without your permission.

5

Subscriptions, free trial, and billing

Stackin ¥en offers free features as well as an optional premium subscription that unlocks additional features.

Pricing. Premium is available for $6.99 per month or $49.99 per year (in U.S. dollars; prices may vary by region and currency). New subscribers may be offered a 2-week free trial. If you begin a subscription during a free trial, any unused portion of the trial ends when the paid subscription starts.

Auto-renewal. Subscriptions are auto-renewable. Your subscription renews automatically for the same period at the then-current price unless you cancel it at least 24 hours before the end of the current period. Your Apple ID account is charged for renewal within 24 hours before the current period ends.

Managing and canceling. You can manage or cancel your subscription any time in your device’s App Store account settings. Canceling stops the next renewal; it does not retroactively refund the current period.

Payments and refunds. All payments are processed by Apple through your Apple ID — we do not collect or store your payment card details. Refund requests are handled by Apple in accordance with Apple’s policies. We may change subscription prices or features going forward; if we do, the change won’t affect your current billing period, and continued use after a price change constitutes acceptance of the new price.

6

Acceptable use

When using the App, you agree not to:

  • Use it for any unlawful purpose or in violation of these Terms;
  • Attempt to disrupt, damage, or gain unauthorized access to the App or its systems;
  • Reverse engineer, decompile, or attempt to extract the source code of the App, except where permitted by law;
  • Interfere with another person’s use of the App.
7

Your data and content

The entries you log belong to you. By using the App, you grant us the limited permission needed to store and process your entries so we can provide the service to you (for example, saving your data and syncing it to your account). We don’t claim ownership of your financial data, and we don’t sell it.

8

Our intellectual property

The App itself — including its name, design, logo, and software — belongs to us and is protected by intellectual property laws. We grant you a personal, limited, non-transferable, non-exclusive license to use the App for its intended purpose. These Terms don’t give you any rights to our branding or code beyond that.

9

Disclaimers

The App is provided “as is” and “as available,” without warranties of any kind, whether express or implied, to the fullest extent permitted by law. We don’t warrant that the App will be uninterrupted, error-free, or that any calculations or figures it displays are accurate for your purposes. You are responsible for verifying your own financial information.

10

Limitation of liability

To the fullest extent permitted by law, we will not be liable for any indirect, incidental, special, or consequential damages, or for any loss of data or profits, arising out of or related to your use of the App. Our total liability for any claim relating to the App will not exceed the amount you paid us for the App in the twelve months before the claim.

11

Termination

You can stop using the App and delete your account at any time. We may suspend or end your access if you violate these Terms or use the App in a way that could harm other users or us. Sections that by their nature should survive termination (such as intellectual property, disclaimers, and limitation of liability) will continue to apply.

12

Indemnification

You agree to indemnify and hold us harmless from claims, losses, and expenses arising from your misuse of the App or your violation of these Terms, to the extent permitted by applicable law.

13

Changes to the App and these Terms

We may update, change, or discontinue features of the App over time. We may also update these Terms; when we do, we’ll revise the “Last updated” date above. Your continued use of the App after changes take effect means you accept the updated Terms.

14

Governing law

These Terms are governed by the laws of the Commonwealth of Virginia, United States, without regard to its conflict-of-laws rules. Any disputes will be handled in the state or federal courts located in Virginia, unless applicable law requires otherwise.

15

Apple App Store terms

Because you download Stackin ¥en through the Apple App Store, the following also applies:

  • These Terms are between you and us only, not with Apple. We — not Apple — are solely responsible for the App and its content.
  • Apple has no obligation to provide maintenance or support for the App. Any support questions should come to us at the email below.
  • To the extent permitted by law, Apple provides no warranty for the App. If the App fails to conform to any applicable warranty, you may notify Apple, and Apple may refund the purchase price (if any); Apple has no other warranty obligation.
  • We — not Apple — are responsible for addressing any claims relating to the App, including product liability, legal or regulatory claims, and claims that the App infringes someone’s intellectual property rights.
  • You represent that you are not located in a country subject to a U.S. Government embargo and are not on any U.S. Government restricted-parties list.
  • Apple and its subsidiaries are third-party beneficiaries of these Terms, and upon your acceptance, Apple will have the right to enforce these Terms against you as a third-party beneficiary.
16

Contact us

Questions about these Terms? Reach us at support@stackinyen.com.