Percent & Finance Calc Pro: privacy policy, terms of use & EULA
Version 2.1 · Last updated 6 November 2026
This page holds all three documents for Percent & Finance Calc Pro. They are written for this app only — each of our apps handles data differently. Published by denix.studio, founded by Gökhan Alp Atar, Nilüfer / Bursa, Turkey.
Privacy Policy
- 01
Who we are
Percent & Finance Calc Pro (version 2.1) is published by denix.studio, founded by Gökhan Alp Atar, Nilüfer / Bursa, Turkey. This policy describes this app specifically — our other apps handle data differently and each has its own policy.
- 02
How Percent & Finance Calc Pro handles data
Percent & Finance Calc Pro runs entirely on your device. Calculations, history and saved results stay on the phone; there is no account and no server.
- 03
What is collected
Percent & Finance Calc Pro may hold the figures you type and the calculations you choose to save to history, with any notes you add; favourite calculations, starred calculations and a count of how often you open each one, used only to show your most used calculations; an optional name, company name and company logo you enter during setup, shown on your results; language, theme and number-format preferences; your purchase status, which Apple provides to the app to unlock Pro; and anonymous crash reports if iOS is set to share them with developers.
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Why
Data is used only to make Percent & Finance Calc Pro work as described on its App Store page, to fix crashes and to keep the app secure. It is never sold, rented, or used to build an advertising profile.
- 05
Permissions this app asks for
Percent & Finance Calc Pro asks for no system permissions: no location, no camera, no photo library, no contacts, no microphone.
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Third parties
Percent & Finance Calc Pro uses no advertising networks, no third-party analytics SDKs and no external processors. Nothing is shared with anyone.
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Retention and deletion
Calculation history can be cleared inside the app at any time and disappears entirely if you delete the app. Because there is no account and no server, we cannot see, restore or hand over your content — it is not ours to hold.
- 08
Security
Data held on the device is protected by iOS app sandboxing and file-level encryption. Where information does travel, it travels over TLS. No system is perfect, but we keep the amount of data involved as small as the app allows.
- 09
Children
Rated 4+. The app is a general-audience calculator and does not knowingly collect personal information from children under 13.
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Your rights (GDPR and KVKK)
You may ask for access to any personal data we hold about you, ask for it to be corrected or deleted, object to processing, ask for portability, and withdraw consent. Where the app holds everything on your device, you exercise those rights directly: edit or delete the content in the app, or delete the app. Write to us and we answer within 30 days.
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Payments
The app is free to download with no advertising. Pro is offered as a monthly or yearly auto-renewing subscription (the yearly plan may include a free trial for eligible new subscribers) or as a one-time lifetime purchase. Payment is charged to your Apple ID; subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and can be managed or cancelled in your Apple ID account settings. All purchases are processed by Apple; we never see your card details.
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Changes and contact
Material changes to this policy are published on this page with a new date. Questions about Percent & Finance Calc Pro and this policy go to https://denix.studio/contact or g.alpatar@gmail.com and are answered by a person, usually within two working days.
Terms of Use
- 01
Agreement
These terms are between you and denix.studio, founded by Gökhan Alp Atar, Nilüfer / Bursa, Turkey, and cover Percent & Finance Calc Pro only. By downloading, installing or using Percent & Finance Calc Pro you accept them; if you do not, please do not use the app.
- 02
Licence
We grant you a personal, limited, non-exclusive, non-transferable, revocable licence to use Percent & Finance Calc Pro on Apple devices you own or control, as permitted by the App Store Terms of Service. You may not copy, sell, rent, decompile or reverse-engineer the app, or strip it of its notices.
- 03
Cost and purchases
The app is free to download with no advertising. Pro is offered as a monthly or yearly auto-renewing subscription (the yearly plan may include a free trial for eligible new subscribers) or as a one-time lifetime purchase. Payment is charged to your Apple ID; subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and can be managed or cancelled in your Apple ID account settings. All purchases are processed by Apple; we never see your card details.
- 04
Acceptable use
Do not use Percent & Finance Calc Pro unlawfully, do not attempt to breach or overload it, and do not use it in a way that harms other users or third parties.
- 05
Not financial advice
Loan, interest, margin, commission, tax and investment results are arithmetic, not advice. Rates, rounding rules and tax law vary by country and change over time. Check any figure that matters against your bank, accountant or tax authority before acting on it.
- 06
Accuracy
We work hard on correctness, but the app is provided without warranty that a result fits your particular contract, jurisdiction or rounding convention.
- 07
Availability and updates
Percent & Finance Calc Pro is updated over time. Features may change or be withdrawn, and support for older iOS versions may end. We do not promise the app will be uninterrupted or error-free.
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Warranty disclaimer
Percent & Finance Calc Pro is provided "as is" and "as available", without warranties of any kind, express or implied, including fitness for a particular purpose. Some jurisdictions do not allow such exclusions, in which case the minimum warranty the law requires applies.
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Limitation of liability
To the extent the law allows, denix.studio is not liable for indirect, incidental, special, consequential or punitive damages, or for lost data or profits, arising out of your use of Percent & Finance Calc Pro.
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Apple
Percent & Finance Calc Pro is distributed through the Apple App Store, so Apple's terms also apply. Apple is not a party to this agreement, has no obligation to provide support for Percent & Finance Calc Pro, and is a third-party beneficiary entitled to enforce these terms. Any claim about the app is directed to us, not to Apple.
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Governing law
These terms are governed by the laws of the Republic of Turkey, without regard to conflict-of-law rules. Disputes are resolved in the courts and enforcement offices of Bursa. Mandatory consumer-protection rights in your own country are unaffected.
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Contact
Anything about these terms, or about Percent & Finance Calc Pro itself, goes to https://denix.studio/contact or g.alpatar@gmail.com.
End-User Licence Agreement (EULA)
- 01
Parties and acknowledgement
This End-User Licence Agreement ("EULA") is between you and denix.studio, founded by Gökhan Alp Atar, Nilüfer / Bursa, Turkey ("Licensor") for Percent & Finance Calc Pro. You and Licensor acknowledge that this EULA is concluded between you and Licensor only, not with Apple Inc. ("Apple"), and that Licensor, not Apple, is solely responsible for Percent & Finance Calc Pro and its content.
- 02
Scope of licence
Licensor grants you a non-transferable licence to use Percent & Finance Calc Pro on any Apple-branded product that you own or control, as permitted by the Usage Rules in the Apple Media Services Terms and Conditions, including use by other accounts in your Family Sharing group where the app supports it. You may not distribute, rent, lease, lend, sell, sublicense, modify, decompile or reverse-engineer the app, except as the law expressly permits.
- 03
Maintenance and support
Licensor is solely responsible for any maintenance and support of Percent & Finance Calc Pro, as set out on its support page and in this EULA or as required by law. Apple has no obligation whatsoever to provide maintenance or support for the app.
- 04
Warranty
Licensor is solely responsible for any product warranties, whether express or implied by law, to the extent not effectively disclaimed. If Percent & Finance Calc Pro fails to conform to an applicable warranty, you may notify Apple, and Apple will refund the purchase price, if any, of the app to you. To the maximum extent permitted by law, Apple has no other warranty obligation with respect to the app, and any other claims, losses, liabilities, damages, costs or expenses attributable to a failure to conform to a warranty are Licensor's sole responsibility.
- 05
Product claims
Licensor, not Apple, is responsible for addressing any claims by you or a third party relating to Percent & Finance Calc Pro or your possession and use of it, including product liability claims, claims that the app fails to conform to any applicable legal or regulatory requirement, and claims arising under consumer protection, privacy or similar legislation.
- 06
Intellectual property
If a third party claims that Percent & Finance Calc Pro or your possession and use of it infringes that party's intellectual property rights, Licensor, not Apple, is solely responsible for the investigation, defence, settlement and discharge of that claim.
- 07
Legal compliance
You represent and warrant that you are not located in a country subject to a U.S. Government embargo or designated by the U.S. Government as a “terrorist supporting” country, and that you are not listed on any U.S. Government list of prohibited or restricted parties.
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Third-party terms
You must comply with any applicable third-party terms of agreement when using Percent & Finance Calc Pro — for example your mobile carrier or network provider's terms.
- 09
Third-party beneficiary
Apple and Apple's subsidiaries are third-party beneficiaries of this EULA. Upon your acceptance of it, Apple has the right, and is deemed to have accepted the right, to enforce this EULA against you as a third-party beneficiary.
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Licensor contact
Questions, complaints or claims about Percent & Finance Calc Pro: denix.studio, Gökhan Alp Atar, Nilüfer / Bursa, Turkey — g.alpatar@gmail.com, or https://denix.studio/contact.