1Agreement to these terms
These Terms of Use (“Terms”) are a legal agreement between you and Zydeno, the developer of Wirelobe (“we”, “us”). They apply to the Wirelobe app for Android, its updates and everything it shows or produces (together, “the app”). By installing, opening or using the app you accept these Terms. If you do not accept them, do not use the app and uninstall it.
The Privacy Policy explains how the app handles data and forms part of these Terms. If we offer optional features under additional terms in the future, for example paid features, those terms will be shown to you before you accept them and will apply together with these Terms.
You must be old enough to enter into a binding contract where you live, or use the app with the consent and supervision of a parent or guardian who accepts these Terms for you. If you use the app for an organisation, you confirm that you may accept these Terms on its behalf; the consumer-protection provisions of these Terms apply only to consumers.
2Who provides Wirelobe
Wirelobe is developed and published by Zydeno (“we”, “us”), an independent developer. Contact: support@zydeno.com, website zydeno.com.
The app is a technical tool intended for adults. If you are under the age of majority where you live, use it only with the involvement of a parent or guardian.
3What Wirelobe is
Wirelobe is an antenna modeling tool. You enter the geometry of a wire antenna and its environment, and the app estimates currents, feed-point impedance, SWR, gain and radiation patterns with its own thin-wire method-of-moments solver, based on published electromagnetic theory. It also produces cut lists and build sheets from your model. It works offline, has no ads and needs no account.
A model is not the antenna. Free space and a perfectly conducting plane are idealisations; the real-ground and ground-mounted options are approximations. Results depend on the geometry, segmentation and parameters you enter. Ground, nearby objects, feed lines, insulation, construction and the installation all change how a real antenna behaves.
4Estimates, not measurements
Measure before you rely on it
Results are estimates from a thin-wire method-of-moments model and the geometry you enter. Real antennas are affected by ground, nearby objects, feed lines, insulation and construction. Measure and adjust your antenna before use. The app does not check safety or legal compliance.
A low SWR in the model is not proof of gain, radiation efficiency, physical safety, permission to transmit or a successful installation. Convergence checks and warnings help you judge a model; they do not make it correct.
5Radio rules, RF exposure and installation
Power lines kill
Never put antennas, masts or wires near power lines. Contact can kill. Installation, masts, grounding and lightning protection are outside this app. Follow local electrical and building codes and use qualified help.
- Licences and frequencies. Band presets are typical amateur bands for convenience. They do not say which frequencies, modes or power you may use. Check your licence and the national rules where you transmit.
- RF exposure. The app does not evaluate RF exposure and does not calculate safe distances. Where your regulator requires an RF exposure evaluation (for example under the rules of the FCC in the United States, or limits based on ICNIRP guidelines in many other countries), you must carry it out by the methods it accepts.
- Interference. You are responsible for avoiding harmful interference and for the operation of your station.
- Transmitter power. Power entered in the app is only a calculation input. It is not an allowed or safe power.
6Your responsibility
You are responsible for:
- entering geometry, materials and parameters correctly, in the units you selected, and choosing an environment that suits your purpose;
- checking the results, including by measuring the real antenna with suitable equipment, before you cut, build, install or transmit;
- building, raising, grounding and protecting antennas, masts and feed lines safely, and the safety of people, animals and property around them;
- holding the licences you need and following the rules on frequencies, power, RF exposure, planning permission and interference that apply where you operate;
- any work you do for others with the app, and the cost of wire, materials, equipment and time.
7File formats
Wirelobe can import NEC-2 input decks (.nec) and MMANA files (.maa) and export NEC-2 input decks. NEC-2 and MMANA file formats are named only to identify file types. Wirelobe is not affiliated with their authors. Because formats differ, an import or export may approximate or leave out parts of a model; the app tells you when it cannot calculate an imported model and leaves the original file untouched. Check a converted model before relying on it.
8Not professional advice; no safety-critical use
Check results before you rely on them
The impedance, SWR, current, gain, radiation-pattern and dimension estimates that Wirelobe shows are produced from models, published methods and data and the values you enter, and they can be wrong. Before relying on them for RF exposure, compliance with your licence, masts and structures, grounding, lightning protection or any work near power lines, measure the real antenna and, where needed, ask a qualified radio professional.
The app is a tool to help you plan and calculate. It does not give professional, engineering, legal or other expert advice, and using it does not create a professional relationship with us. You remain responsible for your inputs, for how you interpret the results and for what you decide to do.
Do not use the app as the only basis for a decision where an error could cause death, personal injury, damage to property or the environment, or legal or financial loss, and do not use it in a safety-critical system, in an emergency or to control equipment.
9Licence to use the app
Subject to these Terms, we grant you a limited, personal, revocable, non-exclusive, non-transferable and non-sublicensable licence to download, install and use the app on Android devices you own or control, for your own purposes (including your own projects and work for others). The app is licensed to you, not sold.
Except where these Terms, an open-source licence or mandatory law allow it (for example decompiling for interoperability where the law permits), you may not: copy, modify, translate or create derivative works of the app; decompile, disassemble or reverse-engineer it; rent, lend, sell, sublicense, distribute or publish it, or make it available for use by others over a network; remove or change any copyright, trademark or legal notice; or get around any technical limit of the app, including any future purchase, licence or advertising mechanism.
Open-source components and fonts in the app are licensed under their own licences, listed in the app under About → Open-source licenses. Those licences prevail for those components, and nothing in these Terms limits the rights they give you.
10Your data and backups
Your projects, library and settings are stored only on your device. You own them. We do not have a copy and cannot recover them if you lose your phone, uninstall the app, clear its storage or use “Delete all data”. Use “Export data” in Settings to keep your own copy. See the Privacy Policy for details.
The designs you create, and the PDF, CSV, NEC-2 and project files you export from your own input, are yours to use. We claim no rights in them.
11Fonts and open-source components
Wirelobe is built with open-source software and a font, shown in the app under About → Open-source licenses:
| Component | Licence |
|---|---|
| Lato typeface, © Łukasz Dziedzic, used unmodified | SIL Open Font License 1.1 |
| AndroidX, Jetpack Compose, Kotlin and kotlinx libraries and their dependencies | Apache License 2.0 |
The font and libraries remain the property of their authors. Nothing in these Terms limits the rights those licences give you for those components. Calculations use the authors’ own thin-wire method-of-moments solver based on published electromagnetic theory; the app contains no code, example models or tables from other antenna-modeling programs or books.
12Acceptable use
You agree not to:
- use the app in breach of any law or of other people’s rights;
- remove or hide legal notices or open-source attributions, or present the app’s output as a certified, approved or professionally engineered design;
- copy, modify, redistribute, sell or reverse-engineer the app, except as allowed by law or by an open-source licence.
You also agree not to:
- use the app, or data obtained through it, in a way that is unlawful, fraudulent or harmful, or that infringes anyone’s intellectual property, privacy or other rights;
- enter, store or pass on other people’s personal data with the app unless you are allowed to do so;
- interfere with or disrupt the app or any service it connects to, introduce malicious code, or try to gain unauthorised access to any system;
- use automated means to extract data from the app or from the services it uses beyond normal personal use;
- present the app or its output as official, certified or endorsed by any authority, manufacturer or data provider.
13Intellectual property
The app, its design, text, icon and the name Wirelobe belong to the developer, except for the open-source components and the font above, which belong to their owners. Other names are used only to describe things and belong to their respective owners.
The names Zydeno and Wirelobe and their logos are our marks. You may refer to them to describe the app accurately, but not use them in a way that suggests endorsement. Names of third parties appear only to identify data sources, file formats, standards or rules; they belong to their owners and do not imply endorsement. If you send us feedback or ideas, we may use them without any obligation to you. We claim no rights in your own projects, data or exported files.
14Price, payments, ads and future paid features
Current version. The current version of Wirelobe is provided free of charge, without ads and without in-app purchases or subscriptions. This describes the current version only. It is not a promise that the app, or any feature of it, will remain free of charge or free of ads.
Possible changes. We may at any time introduce advertising; offer paid features, in-app purchases, subscriptions or a paid edition; change which features are free; and set or change prices. Features that are free today may require payment in a future version. We will describe such changes in the store listing and release notes, and in the Privacy Policy where they affect data.
Purchases. Any purchase will be made through Google Play and processed by Google under the Google Play Terms of Service and its payment policies. Prices are shown in Google Play before you buy, including taxes where applicable. Subscriptions renew automatically until you cancel them in Google Play; cancelling stops future renewals. Refunds follow Google Play’s refund policies and your mandatory consumer rights, such as the right of withdrawal in the EU and the UK. Where you ask for immediate access to digital content during a withdrawal period, you may lose that right to the extent the law allows, and you will be asked to confirm this before you buy. You are charged only if you choose to buy something.
Ads. If the app shows ads, they are supplied by third parties. We are not responsible for the content of ads or for the products and services advertised, and any dealings with advertisers are between you and them.
Price changes. We may change prices for future purchases at any time. For an active subscription, we will announce a price increase as Google Play and the law require, and you can cancel before it applies.
15Disclaimer of warranties
To the maximum extent permitted by law, the app and everything it produces are provided “as is” and “as available”, without warranties of any kind, express or implied, including warranties of accuracy, correspondence between modeled and real antenna performance, reliability, fitness for a particular purpose, merchantability and non-infringement. We do not warrant that the app is free of errors, that an antenna will perform as modeled, that printed or exported dimensions match your materials or your other software, or that the app will work on every device or Android version.
In particular, and to the maximum extent permitted by law, we do not warrant that the app will meet your requirements, run without interruption, be compatible with your device or be free of errors or harmful components; that defects will be corrected; that data from third-party sources is accurate, complete or current; or that any feature, data source or price will remain available or unchanged.
Nothing in these Terms excludes or limits warranties, guarantees or conformity rights that cannot be excluded under the law that applies to you as a consumer (§17).
16Limitation of liability
To the maximum extent permitted by law, the developer is not liable for any indirect, incidental, special, consequential or punitive damages, or for damage to radios, amplifiers, antennas, masts, buildings or other property, injury caused by installation work or contact with power lines, interference, regulatory penalties, the cost of wire, materials, equipment or labour, loss of data, lost profits or business losses, arising from or related to the app, its output or decisions based on it, even if we were told such damage was possible.
Cap. To the maximum extent permitted by law, our total liability for all claims arising out of or relating to the app or these Terms is limited to the greater of (a) the total amount you paid us for the app and in-app purchases in the 12 months before the event giving rise to the claim and (b) 50 euros or the equivalent in your local currency. For the current version, which is free of charge, you have paid nothing.
These limits apply whatever the legal basis of the claim (contract, tort including negligence, strict liability or otherwise), even if a limited remedy fails of its essential purpose. They are part of the basis on which we make the app available.
What we do not limit. Nothing in these Terms excludes or limits liability for death or personal injury caused by our negligence; for fraud or fraudulent misrepresentation; for damage caused intentionally or by gross negligence; under mandatory product-liability law (including, where it applies, Directive (EU) 2024/2853 on liability for defective products and the UK Consumer Protection Act 1987); or any other liability that cannot be excluded or limited by law. Where the law allows only a partial limitation, our liability is limited to the extent it permits.
17Your rights as a consumer
If you use the app as a consumer, you benefit from the mandatory consumer-protection rules of the country where you live, and nothing in these Terms affects them. In particular:
- EU and EEA: your statutory rights, including those on the conformity of digital content and digital services under the national rules implementing Directive (EU) 2019/770 where they apply, and mandatory product-liability rules, remain unaffected.
- United Kingdom: your statutory rights, including under the Consumer Rights Act 2015, remain unaffected.
- Australia: our services come with guarantees that cannot be excluded under the Australian Consumer Law. Where the law allows us to limit our liability for failing to meet a consumer guarantee for services that are not of a kind ordinarily acquired for personal, domestic or household use, our liability is limited to supplying the services again or paying the cost of having them supplied again.
- New Zealand: if you acquire the app for business purposes, you agree that the Consumer Guarantees Act 1993 does not apply, to the extent the law permits.
- United States and Canada: some states and provinces do not allow the exclusion of implied warranties or the limitation of incidental or consequential damages, so some of the exclusions above may not apply to you. In Québec, the mandatory provisions of the Consumer Protection Act apply.
18Indemnity
To the extent permitted by law, you agree to indemnify and hold harmless the developer against claims, liabilities, damages, losses and reasonable costs, including reasonable legal fees, brought by third parties and arising out of (a) your antennas, installations and radio transmissions, (b) your breach of these Terms, (c) your violation of any law or of the rights of others, or (d) output of the app that you provide to another person, such as a client or employer. This does not apply to the extent a claim is caused by our own breach of these Terms or our negligence, or where local consumer law does not allow it.
19Changes, availability and termination
To the extent the law allows, we may change, update, add or remove features, change data sources, and suspend or discontinue the app, in whole or in part or in any country, at any time. We are not obliged to provide updates, maintenance or support, except where mandatory consumer law requires updates to keep the app in conformity.
You may stop using the app at any time by uninstalling it. Your licence ends automatically if you materially breach these Terms, and we may end or suspend it where the law requires. When it ends, you must stop using the app and uninstall it. Your data stays on your device under your control, so export what you need first.
Provisions that by their nature should continue after these Terms end continue to apply, including those on intellectual property, disclaimers, limitation of liability, indemnity, governing law and general provisions.
20Google Play
You obtain the app through Google Play. Your download, and any purchase you make, is also governed by the Google Play Terms of Service and Google’s policies. Where these Terms conflict with Google Play’s terms on the distribution, billing, refunds or licensing of apps obtained from Google Play, Google Play’s terms prevail to the extent of that conflict.
These Terms are between you and the developer only, not Google. Google is not responsible for the app or its content and has no obligation to provide maintenance or support for it. Android and Google Play are trademarks of Google LLC.
21Governing law and disputes
These Terms, and any dispute or claim arising out of or in connection with them or the app, including non-contractual disputes, are governed by the law of the country in which the developer is established, without regard to its conflict-of-laws rules. The United Nations Convention on Contracts for the International Sale of Goods does not apply.
The courts competent for the place where the developer is established have jurisdiction. If you are a consumer, you keep the protection of the mandatory provisions of the law of your country of residence, and you may bring proceedings in the courts of that country where that law allows it.
Before starting formal proceedings, please write to support@zydeno.com and give us at least 30 days to try to resolve the issue informally. This does not affect any time limit that applies to you by law or your right to use an alternative dispute-resolution body available to consumers in your country.
22General provisions
- Entire agreement. These Terms, the Privacy Policy and any additional terms you accept for optional features are the entire agreement between you and us about the app.
- Severability. If a provision is found invalid or unenforceable, it applies to the maximum extent permitted and the rest remains in effect.
- No waiver. Not enforcing a provision is not a waiver of the right to enforce it later.
- Assignment. You may not transfer your rights or obligations under these Terms. We may transfer ours, for example together with the app to another developer; where the law requires, this will not reduce your rights as a consumer.
- Events beyond our control. We are not responsible for failure or delay caused by events beyond our reasonable control, such as outages of networks, devices or third-party services, natural disasters or acts of authorities.
- Export and sanctions. You agree to use the app in compliance with applicable export-control and sanctions laws.
- No third-party rights. No one other than you and us may enforce these Terms.
- Notices. We may give notices in the app, in its store listing or release notes, or on this page. You can send notices to support@zydeno.com.
- Language. These Terms are written in English, which is the binding version. A translation, if offered, is for convenience only, unless the law of your country requires otherwise.
23Changes to these terms
We may update these Terms, for example when we change the app, introduce ads or paid features (§14), or when the law changes. The effective date and version at the top of this page show which version applies, and the version history (§24) summarises the changes.
For material changes we give reasonable notice before they take effect, for example in the release notes or in the app. If you keep using the app after the changes take effect, you accept the updated Terms; if you do not agree, stop using the app and uninstall it. Changes do not apply to disputes that arose before they took effect.
24Version history
| Version | Effective | Changes |
|---|---|---|
| 1.0 | 2026-10-18 | First published. |
25Contact
- Developer: Zydeno, the developer of Wirelobe on Google Play
- E-mail: support@zydeno.com
- Website: zydeno.com
See also the Privacy Policy.