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acubemy

Level up your cubing

Frequently Asked Questions

Find answers to common questions about acubemy, our premium features, and cube connectivity.

General

acubemy generates WCA compliant random-state scrambles using an efficient custom implementation of Kociemba's two-phase solver. This method guarantees that no scramble is predictable and that receiving a duplicate is statistically impossible.
No, acubemy currently requires a smart cube. This is because acubemy is a smart cube app - designed to help cubers train and not just a timer. To provide a targeted action plan, it needs to analyze data like your turns, TPS, and which specific F2L/OLL/PLL cases you're doing.

A normal cube simply can't provide that data, making this kind of specific training impossible. However, we are looking into ways to support regular cubes in the future!
We use the slice turn metric throughout the whole app, meaning that all the following moves count as one turn: R, U, F2, B3', r, f2, M, S'. Cube moves are not counted as turns (x, y, z). TPS are calculated by dividing the move count by the solves time. For example a 20.0s solve with 50 moves would have a TPS of 50 moves / 20s = 2.5 Turns per Second.

The following tables show which smart cubes are currently supported by acubemy, grouped by manufacturer. If your cube is not listed or shown as "Not Supported", feel free to reach out on our Discord so we can add support.

GAN
GAN i4(2026)
GAN i Carry 4(2026)
GAN i Carry E(2025)
GAN 12 UI MagLev(2024)
GAN 12 UI SP(2024)
GAN i Carry 2(2024)
GAN 356 i Carry S(2023)
GAN Mini UI FreePlay(2023)
GAN 12 UI FreePlay(2022)
GAN 356 i3 V2(2022)
GAN 356 i3(2021)
GAN 356 i Carry(2021)
Monster Go AI(2021)
GAN 356 i Play / i2(2020)
GAN 356 i(2019)
MoYu
MoYu Super WeiLong V2 AI (18th Anniversary Edition)(2025)
MoYu WeiLong V11 MagLev AI(2025)
MoYu WeiLong V11 AI (18th Anniversary Edition)(2025)
MoYu Super AoLong AI(2025)
MoYu WeiLong V10 AI(2024)
MoYu WeiLong V10 AI Lite(2024)
MoYu WeiLong AI(2021)
QiYi
X-Man Tornado V4 AI(2024)
QiYi Smart Cube (SC-S / Art / Speed / UV)(2024)
GoCube
GoCube Edge(2023)
GoCube X(2021)
Rubik's
Rubik's Connected X(2024)
Rubik's Connected(2020)
Giiker
GiiKER Super Cube i3SE(2019)
GiiKER Super Cube i3S(2018)
GiiKER Super Cube i3(2018)

Premium

The following table shows what is included in the different plans:

Features
Basic
Premium
Supporter
Solving Analytics
Cloud Sync & Backup
Support for all cubes
Local and Online Matches
OLL/PLL Statistics
Learn new Algorithms
Drill your Algs
Personalized Training
Data Exports
Priority Support
Enable further Development for acubemy
Special Supporter Badge and Role

For more information about Premium features and pricing, visit our subscription page.

acubemy offers two Premium tiers:

Premium€4.99/month or €49.99/year
Support€14.99/month or €149.99/year

The yearly plans offer a significant discount compared to paying monthly. For a detailed comparison of what each plan includes, visit our subscription page.
Yes, absolutely! Once you upgrade to Premium, all the advanced features will be retroactively applied to your entire solve history, allowing you to benefit from enhanced analysis and insights on all your past solves.
Android: Yes, you can purchase Premium directly within the Android app without any issues.

iOS: In-app purchases on iOS are not yet available - Apple's guidelines require a dedicated payment integration that is more complex to build. We are actively working on it and it will be available in the future.

In the meantime, you can purchase Premium on acubemy.com - your subscription will automatically be active on the iOS app as well.
We want you to be able to try acubemy Premium risk-free. Here's how it works:

  1. 7-Day Free Trial: You get full access to all Premium features for 7 days.
  2. Cancel Anytime: You can cancel your trial at any time before the 7 days are up in your account settings. You will not be charged.
  3. Automatic Conversion: If you don't cancel, your trial will automatically convert to the Premium plan you selected (monthly or yearly) after 7 days, and your payment method will be charged.
  4. 3-Day Refund Policy: If you forgot to cancel the trial in time, we offer a 3-day money-back guarantee on your first payment.

Subscription Options:

  • Monthly Plan: This is a flexible, pay-as-you-go plan. It is billed monthly and can be cancelled at any time.
  • Yearly Plan: With this plan, you pay upfront for 12 months but receive a significant discount compared to the monthly rate.

(Please note: All cancellations (monthly or yearly) take effect at the end of your current paid billing cycle.)

Cube Connection

Connectivity issues are almost always related to signal strength or battery life, especially with older models.

Here are the most common issues and how to fix them:

  • Signal Quality & Distance: The signal quality of older cube models is often poorer than on newer ones. This can cause connection drops if the distance between the cube and your device's Bluetooth receiver is over 50cm (1.5 feet).
  • PC Connection Issues: PC users frequently experience this, as the computer's built-in Bluetooth receiver is often located below the desk in the PC case. This separation is enough to cause problems.

    Solution: The most reliable fix is to buy an external USB Bluetooth adapter (dongle) and place it on your desk, close to where your cube is.
  • Low Battery Behavior: Be aware that some older cube models behave differently when their battery is low. They might disconnect very shortly after establishing a connection (even if a low battery warning is shown). This is different from many other Bluetooth cubes, which will often work until they completely run out of battery.
This usually happens for one of these four reasons. Please check them in order:

  1. Your cube is already connected to another device. A smart cube can only be connected to one app at a time. Please make sure your cube is completely disconnected from any other app on your phone (like CubeStation or other timers) or another computer before you try to connect to acubemy.
  2. Your cube's battery is dead (or very low). This is the most common problem. Many cubes will fail to connect or won't show up at all if the battery is low. Please try charging your cube fully before connecting again.
  3. Your cube is "asleep". To save power, most cubes go into a sleep mode. To "wake it up" so it appears in the Bluetooth list, you usually need to turn a few faces or (on some older models like the Gan 356i) shake it. Some newer models, like the GAN 12 UI, require you to press a button on the cube's case to wake it up.
  4. Your device doesn't support Bluetooth Low Energy (BLE 4.0). All smart cubes use the Bluetooth Low Energy (BLE) standard. If your computer or mobile device is very old (generally made before 2012), it may not support BLE and will be unable to find any smart cubes.

What if none of this works?
acubemy is designed to support all smart cube models. If you have tried all the steps above and are still having issues, please contact a developer on our Discord. It might be a new cube model we haven't tested, and we'd be happy to help you get it working.
Smart cube connections require the Web Bluetooth API, which is only supported by certain browsers and systems. Here's a comprehensive guide to troubleshoot connection issues:

Common Issues:

  • Browser not supported: Only Chrome, Edge, and Opera support Web Bluetooth. Firefox and Safari do not support this feature.
  • Bluetooth disabled: Your system's Bluetooth might be turned off.
  • No Bluetooth hardware: Your device might not have Bluetooth capabilities.
  • Browser flags disabled: Some browsers require experimental features to be enabled.

Solutions by System:

Check Browser Compatibility:
  • Chrome: Version 56 or newer
  • Edge: Version 79 or newer
  • Opera: Version 43 or newer
  • Firefox: Not supported
  • Safari: Not supported

Enable System Bluetooth:
  • Windows: Settings → Devices → Bluetooth & other devices
  • macOS: System Preferences → Bluetooth
  • Linux: System Settings → Bluetooth or use bluetoothctl

Enable Browser Features (Chrome/Edge):
Visit chrome://flags or edge://flags and enable:
#enable-web-bluetooth-new-permissions-backend

System Requirements:
  • Windows: Windows 10 version 1703+ required
  • macOS: OS X Yosemite or newer
  • Android: Android 6.0+ required
  • Linux: Kernel 3.19+ and BlueZ 5.41+

Special Note for iOS Users:
Standard browsers on iOS don't support Web Bluetooth. Use the Bluefy Browser app instead.

After making changes, refresh acubemy and try connecting again.
No, the Android and iOS apps detect it automatically. If you've already connected your cube in the app before, the web version will also work without any manual entry.

In the web version only, specific cubes with encrypted Bluetooth may require you to enter the MAC address once, since browsers cannot read it directly due to Web Bluetooth privacy standards. acubemy will save the address to your profile so you only ever need to do this once.

Select your operating system below to see the easiest method for you.
Windows:
  • Bluetooth LE Explorer: Download the Bluetooth LE Explorer app from the Microsoft Store
  • Chrome/Edge Bluetooth Internals: Visit chrome://bluetooth-internals/#devices or edge://bluetooth-internals/#devices and look for devices starting with 'GAN', 'QiYi', etc.
  • Enable Browser Feature Flag: Visit chrome://flags or edge://flags and enable #enable-experimental-web-platform-features, then reload acubemy
macOS:
  • Terminal Command: Run system_profiler SPBluetoothDataType and find the MAC address below your cube's name
  • Light Blue App: Download the Light Blue app from the App Store
  • Chrome/Edge Bluetooth Internals: Visit chrome://bluetooth-internals/#devices or edge://bluetooth-internals/#devices
  • Enable Browser Feature Flag: Visit chrome://flags or edge://flags and enable #enable-experimental-web-platform-features
Linux:
  • bluetoothctl Command: Open terminal and run bluetoothctl
  • Blueman: Use the Blueman Bluetooth manager
  • Chrome/Edge Bluetooth Internals: Visit chrome://bluetooth-internals/#devices or edge://bluetooth-internals/#devices
  • Enable Browser Feature Flag: Visit chrome://flags or edge://flags and enable #enable-experimental-web-platform-features
Download the native Android app:
Android QR Code
Get it on Google Play
Android (web browser - for MAC address lookup):
  • Bluetooth Devices Info: Download the Bluetooth Devices Info app from Google Play
  • Enable Browser Feature Flag: Visit chrome://flags and enable #enable-experimental-web-platform-features
Download the native iOS app:
iOS QR Code
Download on the App Store
Google Sign-In is not available in Bluefy Browser.

Google has blocked OAuth sign-in requests from embedded browser frameworks (also called "WebViews") since 2016. Bluefy, like many other specialty browsers, uses an embedded WebView to render web pages, which means Google will reject any sign-in attempt made through it.

Why does Google do this?
Google blocks embedded browsers as a security measure. In an embedded WebView, the host app (in this case, Bluefy) has technical access to everything you type, including your password. While Bluefy is a legitimate app, Google cannot verify this programmatically, so they block all embedded browsers to protect users from potentially malicious apps.

What are my options?
  • Sign up with Email: You can create an acubemy account using your email address and a password. This works perfectly in Bluefy.
  • Sign in on another device first: If you prefer Google Sign-In, you can create or link your account using Google on a desktop browser (Chrome, Edge) or Android device, then log in with email on your iOS device.
  • Link Google later: Create an account with email now, then link your Google account later from a supported browser in your account settings.

Tournaments

Organizer

Tournaments are organized and operated by acubemy — Tan Grumser, Kaiserallee 15B, 76133 Karlsruhe, Germany.

Contact: contact@acubemy.com · Imprint

Eligibility

  • Participants must be at least 18 years of age or the age of majority in their jurisdiction at the time of registration. By participating, you confirm that you meet this requirement.
  • One account per participant. Creating or using multiple accounts to participate in the same tournament is prohibited and may result in disqualification and a permanent ban.
  • Employees, contractors, and affiliates of acubemy, as well as their immediate family members, are excluded from winning prizes but may participate for non-prize purposes (e.g. testing).
  • Participation is open worldwide. It is the participant's sole responsibility to ensure that entry complies with all laws applicable in their jurisdiction. If participation in prize-bearing contests is restricted or prohibited in your jurisdiction, you must refrain from entering.

Participation

  • No purchase is necessary to enter or win. A free acubemy account is sufficient to participate.
  • Registration is open until the end of the first phase of each tournament. The exact dates, times, and deadlines are displayed on the respective tournament page.
  • Submitting a solve during any phase confirms your participation for the remainder of the tournament.
  • By participating, you agree to these tournament rules, our Terms of Service, and our Privacy Policy.

Leaderboard Prizes (Skill-Based)

  • Leaderboard prizes (including podium badges and, where applicable, vouchers for top finishers) are awarded based solely on solve performance (e.g. fastest single time or average, as specified on each tournament page). No element of chance is involved in the determination of leaderboard rankings.
  • In the event of a tie, the participant who submitted their result earlier will be ranked higher.
  • Results are final once the tournament ends, subject to post-tournament review for rule violations. acubemy reserves the right to adjust rankings if cheating or rule violations are detected after the tournament concludes.

Raffle Prizes (Random Draw)

  • In addition to leaderboard prizes, tournaments may include a raffle in which additional prizes are distributed by random draw among eligible participants. Whether a tournament includes a raffle and the available prize tiers are displayed on the respective tournament page before the tournament starts.
  • No separate entry is required. Every participant who completes all required solves in the first phase of the tournament is automatically entered into the raffle. No purchase is necessary to enter or win.
  • Each eligible participant receives one (1) entry. The odds of winning depend on the total number of eligible participants in the tournament.
  • Raffle prizes are organized into prize groups (tiers). Typical prize groups may include, but are not limited to: shop vouchers from partner stores, percentage discounts on acubemy Premium, or complimentary Premium subscription periods. The exact prizes and number of winners per group are specified on each tournament page.
  • Winners are selected using a cryptographically secure pseudorandom number generator. The draw is conducted by acubemy after the tournament ends. A participant may win in only one prize group per raffle.
  • Raffle winners will be notified via the app and/or email. The same claiming process and deadlines as for leaderboard prizes apply (see Prizes section below).
  • Participants who are disqualified from the tournament for rule violations are also excluded from the raffle. If a raffle winner is subsequently disqualified, acubemy reserves the right to draw a replacement winner.

Fair Play

  • All solves must be performed by you personally, in real time, using a physical Rubik's Cube (or compatible smart cube where applicable).
  • The use of solving bots, automated tools, assistance software, pre-solved states, or any form of external help is strictly prohibited.
  • Do not share scrambles or solutions with other participants before the respective phase has ended.
  • acubemy reserves the right to disqualify participants and permanently ban accounts if cheating, suspicious activity, or any violation of these rules is detected. Decisions regarding disqualification are at acubemy's sole discretion and are final.

Prizes (General)

The following applies to all prizes, whether awarded through the leaderboard (skill-based) or through the raffle (random draw):

  • The type, value, and number of prizes for each tournament — including both leaderboard prizes and raffle prize groups — are displayed on the respective tournament page before the tournament starts.
  • Podium badges are awarded to the top leaderboard finishers manually by the admins after the tournament concludes.
  • For voucher prizes (leaderboard or raffle), winners may choose from one of our partner shops. A list of all current partners is available here.
  • For Premium subscription prizes (e.g. discount codes or complimentary subscription periods), the prize will be applied directly to the winner's acubemy account after verification.
  • To claim your prize, send an email to contact@acubemy.com from the email address associated with your acubemy account.
  • Prizes must be claimed within 30 days of the official end of the tournament. Unclaimed prizes will be forfeited.
  • Prizes are non-transferable and cannot be exchanged for cash or other alternatives unless explicitly stated otherwise.
  • Winners are solely responsible for any taxes, duties, or fees applicable to the receipt of their prize in their jurisdiction.

Data Protection

  • Your personal data (username, email address, solve data) is processed for the purpose of conducting the tournament, determining winners, and distributing prizes. The legal basis for this processing is Art. 6(1)(b) GDPR (performance of a contract).
  • Tournament results (username and solve times) may be published on the leaderboard. By participating, you consent to the public display of your username and results.
  • No additional personal data beyond what is already collected through your acubemy account is required for tournament participation.
  • For full details on how we collect, process, and protect your data, please refer to our Privacy Policy. You may exercise your GDPR rights (access, rectification, erasure, portability) at any time by contacting support@acubemy.com.

Liability

  • acubemy shall not be liable for any technical malfunctions, network failures, server outages, Bluetooth connectivity issues (including smart cube disconnections), software errors, or any other circumstances beyond its reasonable control that may affect tournament participation or results.
  • acubemy's liability is limited to cases of intent and gross negligence, except for damages arising from injury to life, body, or health, or from the breach of essential contractual obligations (Kardinalpflichten), for which acubemy is liable in accordance with statutory provisions.
  • Participants enter at their own risk. acubemy makes no warranties, express or implied, regarding the availability, accuracy, or uninterrupted operation of the tournament platform.

Changes & Cancellation

  • acubemy reserves the right to modify, suspend, or cancel a tournament at any time if circumstances require it (e.g. technical issues, insufficient participation, suspected fraud, or force majeure). Participants will be notified of any such changes through the app or via email.
  • acubemy reserves the right to exclude individual participants from a tournament or future tournaments if they violate these rules. Excluded participants have no claim to prizes.
  • acubemy may update these tournament rules at any time. The version in effect at the start of each tournament applies for its duration.

Governing Law

  • These tournament rules are governed by and construed in accordance with the laws of the Federal Republic of Germany, without regard to its conflict-of-law provisions.
  • The place of jurisdiction for all disputes arising from or in connection with these tournament rules is Karlsruhe, Germany, insofar as legally permissible.
  • Recourse to courts of law regarding the awarding of prizes is excluded (Der Rechtsweg ist ausgeschlossen), except where such exclusion is prohibited by mandatory applicable law.
  • Should any provision of these rules be or become invalid, the remaining provisions shall remain unaffected. The invalid provision shall be replaced by a valid provision that most closely reflects the intended purpose.

Platform Disclaimer

Tournaments (including both skill-based leaderboard prizes and random-draw raffle prizes) are organized and sponsored solely by acubemy (Tan Grumser). No third party, including but not limited to Apple Inc. or Google LLC, is a sponsor of, or is involved in, any acubemy tournament, contest, sweepstakes, or prize distribution in any way.

Leaderboard winners are determined exclusively by solve performance. Raffle winners are selected by random draw from all eligible participants. No purchase is necessary to participate in either. Prizes are distributed via email.

You can select a voucher from any of our partner shops:

🤝 Want to become a partner? Contact us at team@acubemy.com

Still have questions?

Can't find the answer you're looking for? Join our Discord community and get help from our team and fellow cubers, or send us an email.