LayerGlance licence terms and Managed Payments information
These terms apply to the LayerGlance app for iPhone, iPad and Apple Watch (including its widgets), LayerGlance Touch, LayerGlance Glow, LayerGlance Bridge and LayerGlance Web (together "LayerGlance") and to licences and plans bought on this website. The provider is FiddlerCrab UG (haftungsbeschränkt), Balbronner Straße 4, 14195 Berlin, Germany ("we"); see the imprint.
Version of 8 October 2026, revision b.
1. Our software stays ours
LayerGlance is proprietary software. All rights in the software, firmware, designs, documentation and the LayerGlance name remain with us. Nothing we publish or supply, including free downloads, test builds and firmware files, is released under an open-source or any other public licence, and no rights are granted except those expressly set out in these terms. The third-party components described in section 4 are the only exception.
A licence grants permission to use LayerGlance; it does not transfer ownership of our intellectual property or give you authority to issue licences, act on our behalf or use our branding for your own offering. We retain control of the development, licensing and authorised distribution of our proprietary software, subject to the rights expressly granted to you and the exceptions in sections 3 and 4.
2. What you may do
We grant you a simple (non-exclusive) right to install LayerGlance on devices you own or control and to use it, for its intended purpose, to monitor printers you own or control. This right is non-transferable and non-sublicensable, subject to the exceptions in section 3. This applies to free use and to Pro features you have licensed, within the device, bridge, printer and duration limits of the relevant licence or plan. It covers the copies needed for installation, backup and updates.
Commercial use is permitted. You may use LayerGlance in your own business, including a print farm, to monitor printers producing paid work for your customers. You may sell the printed products and printing services you produce with those printers without a separate reseller agreement or a royalty to us. Your employees and contractors may operate LayerGlance on your behalf within your licence rights and limits; they do not receive a separate licence. Permission for commercial use does not include permission to resell or redistribute LayerGlance itself.
3. What you may not do
Except for the use and copies permitted in section 2 and the rights preserved below, you need our prior explicit written permission to:
- copy, distribute, publish, rent, lend, sell or sublicense LayerGlance or its firmware files, or make them available to others;
- resell or distribute LayerGlance licences or plans, whether separately or bundled with hardware, or supply hardware with LayerGlance preinstalled for sale, rental or lending;
- offer LayerGlance itself as a hosted, managed or subscription service to third parties, or provide it under your own or another brand (white labelling);
- modify, translate or create derivative works of LayerGlance;
- decompile, disassemble or otherwise reverse engineer LayerGlance, except where sections 69d and 69e of the German Copyright Act (UrhG) permit this and cannot be excluded by contract;
- remove or bypass licence checks, signature checks or other protective measures, or use licence codes other than those we issued to you;
- incorporate our proprietary code, firmware or other protected materials into another product or service;
- remove copyright notices, trademarks or other markings.
A commercial-use licence does not appoint you as a reseller, distributor or hardware manufacturer authorised to bundle our software, and does not grant any sublicensing or branding rights. Any such arrangement requires a separate agreement with us.
Mandatory legal rights. The restrictions in these terms, including any requirement for our permission to transfer or resell a licence, apply only to the extent permitted by law. They do not override rights that cannot be excluded by contract, including applicable statutory rights to resell a lawfully acquired software copy where the distribution right is exhausted, or rights under sections 69d and 69e UrhG. A lawful resale does not entitle you to retain usable copies, duplicate the licence, split a multi-user licence or continue using the transferred rights.
Exception for open-source libraries. These restrictions do not limit the rights you have under the licences of the third-party components in section 4. In particular, the firmware of LayerGlance Touch and LayerGlance Glow is linked with libraries under the GNU Lesser General Public License (LGPL). You may modify those libraries, relink the firmware with your modified versions, and reverse engineer the firmware to the extent needed to debug such modifications (section 6 of the LGPL version 2.1 and section 4 of the LGPL version 3). How to obtain the source code and the files needed for relinking is explained in the third-party licences.
4. Third-party components
LayerGlance contains third-party components that are licensed to you under their own licences, listed in our third-party licences and notices and supplied with each product. Those licences apply only to those components and take precedence over these terms for them. They do not grant any rights in our own software.
5. Pro licences and plans
App Pro and the Farm and Fleet plans offered in the app are bought through Apple's App Store. Apple's terms for purchases and its standard licence for apps apply in addition to these terms. A Farm or Fleet subscription bought in the app also covers the LayerGlance Bridge the app is paired with: the app passes the subscription to the bridge, which obtains a plan licence from us for the subscription's current period.
Device licences for LayerGlance Touch or LayerGlance Glow unlock Pro features on the one controller whose device ID you enter before purchase. They have no expiry or annual renewal. Normal firmware updates, restarts and settings resets do not require a new licence when the controller's device ID is unchanged. Bridge licences unlock Pro for the LayerGlance Bridge whose bridge ID they name and for the apps, lights and screens paired with it, up to the number of printers stated for that licence. A Farm or Fleet plan is a bridge licence for a limited time, renewed with the plan; section 7 sets out the plans sold on this website. Subject to the mandatory legal rights in section 3, licences cannot be transferred to another device or bridge, or resold separately from it, without our prior explicit written permission. If a controller fails or you replace it, or you move your bridge to a new computer, contact us with your order reference and we will move the licence as described on our support page.
6. Buying on this website
Website purchases use Stripe Managed Payments, sold through Link as the transaction merchant of record. FiddlerCrab supplies and licenses LayerGlance and provides product support; Link handles the payment transaction, applicable indirect tax in supported markets, payment receipts and invoices, and transaction support under the terms shown at checkout. Our Kleinunternehmer status under section 19 UStG does not exempt a Link transaction from applicable tax. The final amount, any tax and the payment currency are shown by Link before you place the binding paid order. Our displayed EUR catalogue prices are before applicable customer tax. Link adds that tax to the price and shows the final total before payment. Where Link converts the price to your local currency, check the final amount before paying. On our order page you enter the device ID(s), or for a plan the bridge ID, and give the required confirmations. You then enter your contact and payment details at Link checkout. You can correct your entries or cancel before the final order button. Clicking that button places a binding order that you must pay for. These licence terms govern your use of LayerGlance; the transaction terms displayed by Link also apply to the purchase. We deliver the licence after payment is confirmed.
We then deliver the licence as a signed digital code bound to the ID you entered, on the confirmation page and by email. The email also contains your order, these terms and the withdrawal information in the version you agreed to, and the confirmations you gave. We keep a record of your order; the current terms are always available on our website. The contract language is English.
Consumers have a statutory right of withdrawal, which ends when delivery of the digital content begins with their express consent; see the withdrawal information. Farm and Fleet plans are sold on this website only to businesses; section 7 applies to them in addition.
Website sales are offered only in the buyer countries supported by our checkout and covered by Managed Payments tax compliance. A country listed on the website alone does not prove availability: checkout must also accept your final billing location. We do not offer a direct-payment fallback for unsupported locations. Link sends the payment receipt and tax invoice separately. Our licence confirmation is not a tax invoice. For payment, invoice, refund and subscription transaction questions, contact Link support; for installation, compatibility, licence delivery and other product questions, contact hello@fiddlercrab.eu. Link may provide refunds under its transaction terms and applicable law; these licence terms do not limit those rights or any mandatory consumer rights.
7. Farm and Fleet plans for businesses
Businesses only. On this website we sell the Farm plan (up to 50 printers) and the Fleet plan (up to 300 printers) only to entrepreneurs within the meaning of section 14 BGB, that is, to persons and companies acting in their trade, business or profession. At checkout you confirm this and enter your company name and, if you have one, your VAT ID. Consumers can buy the same plans in the LayerGlance app, where Apple is the seller. The statutory right of withdrawal for consumers does not apply.
What a plan covers. A plan covers one LayerGlance Bridge, identified by the bridge ID you enter, and every LayerGlance app, LayerGlance Touch and LayerGlance Glow paired with it, up to the plan's number of printers. We deliver a signed plan licence valid for the paid year plus seven days, on the confirmation page and by email, and a new one for every year you renew. The bridge also fetches its renewed licence from us itself shortly before the old one expires; see the privacy notice.
Term and renewal. A plan runs for one year from the order and then renews automatically by one further year at a time until it is cancelled. The price of each year is due at its start and is charged to the payment method given at checkout.
Cancellation. You can cancel at any time, up to the last day of the paid year, with effect at its end, in the customer portal linked in every licence email or by email to hello@fiddlercrab.eu. A year already paid is not refunded pro rata. We may likewise cancel a plan at any time before the end of a paid year, with effect at its end, by email. The right of either party to terminate for good cause is unaffected.
When a plan ends. When a plan is cancelled, or a renewal is not paid, its licence expires at the end of the last paid year plus seven days. LayerGlance Bridge then falls back to the Free limits (currently 10 printers), and the paired apps, screens and lights fall back to their own licences or to Free. Nothing on the bridge is deleted: printers above the Free limit are monitored again as soon as a plan is active.
Price changes. We may change the price of a plan for future years. We announce a change by email at least six weeks before the renewal from which it applies. You may then cancel with effect before that renewal; if you do not, the new price applies from that renewal. The price of a year already paid never changes.
Changing plans. To move between Farm and Fleet, use the customer portal where it offers the change, or write to us; we tell you before the change what it costs.
Prices and invoices. The EUR annual catalogue price is before applicable customer tax. Link adds that tax and shows the final amount before purchase and issues the payment receipt and invoice. A business can buy without a VAT ID; omitting a VAT ID does not imply tax exemption. Tax treatment follows the details verified at Link checkout. Link handles subscription transactions; you can also contact us for product and licence support.
8. Updates
We provide updates, including security updates, for as long as the law requires and may provide further updates at our discretion. Security and other necessary updates are never conditional on buying Pro. We have no obligation to add new features. Test builds and beta versions are provided for evaluation, may contain errors and may stop working when their test licences expire.
9. What LayerGlance does
LayerGlance shows the status of your printers. It does not start, stop or change print jobs. It works with the local network interfaces of your printers and is an independent product that is not affiliated with, authorised by or endorsed by Bambu Lab. You are responsible for your printers, their settings and the security of your network.
We supply software, firmware and digital licences. Touch and Glow are DIY firmware products: controllers, displays, LED strips, power supplies and printers are supplied separately by you. A software licence does not include assembled hardware or installation services. Check the compatibility and setup requirements and the installation instructions for the product and exact controller before installing or buying a licence.
LayerGlance reads printer status through the local network (LAN) interface Bambu Lab publicly describes, using the printer's IP address, serial number and LAN access code. It does not connect to Bambu Cloud or require a Bambu account. On supported printer firmware, Developer Mode and LAN Only Mode are not required. Your printer can remain connected to Bambu Cloud for Bambu Handy and Bambu Studio while LayerGlance reads status locally; LayerGlance does not change the printer's connection mode. Monitoring works only while the printer's firmware makes the required local interface available. Our integration is independent and is not endorsed by Bambu Lab. We do not control these interfaces. Bambu Lab may change, restrict or withdraw access at any time, including through printer firmware or policy changes. We will use reasonable efforts to maintain compatibility, but cannot guarantee continued operation where Bambu Lab makes the required interface unavailable.
We do not offer a voluntary refund solely because Bambu Lab changes, restricts or withdraws this access. This does not exclude or limit any mandatory rights, including rights to necessary updates, remedies for defects, termination, a price reduction or a refund where the law requires them.
Direct printer monitoring uses your local network. Bridge features require your own running bridge; Live Activity updates also use our push service and Apple's notification service. Available features and limits depend on the product, licence, operating system and supported printer interfaces described on the product pages. Changes to third-party services may also affect compatibility. Our obligations to supply necessary updates and your mandatory rights remain unaffected.
10. Warranty and liability
Consumers have the statutory rights for defects in digital products. We are liable without limitation for intent and gross negligence, for injury to life, body or health, under the Product Liability Act and under any guarantee we have given. For slight negligence we are liable only for breaches of essential contractual obligations (obligations whose fulfilment makes proper performance of the contract possible and on which you may regularly rely), limited to the damage typically foreseeable when the contract was concluded. Otherwise our liability is excluded. For free use of LayerGlance our liability is limited to intent and gross negligence to the extent the law permits.
11. Feedback
If you send us suggestions or feedback, we may use them freely and without obligation to you.
12. Governing law
German law applies, excluding the UN Convention on Contracts for the International Sale of Goods. For consumers, this choice of law does not remove the protection of the mandatory law of the country in which they habitually reside. If you are a merchant, a legal entity under public law or a special fund under public law, the exclusive place of jurisdiction is Berlin, Germany.