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BullWatt

Bullwatt is a free, open-source, browser-based indoor cycling tool for cyclists

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What BullWatt does

Bullwatt is a free, open-source, browser-based indoor cycling tool for cyclists who just want to control a smart trainer by target watts without a subscription, account, or virtual world.

BullWatt pricing

BullWatt is free to use, with no paid version listed.

Is BullWatt legit?

Uneed can't vouch for BullWatt, but here is what it can check. Read the reviews and the site's terms before you pay or share personal data.

  • Maker: published by canssens-26e2, who has a public profile on Uneed.
  • Launched on Uneed on Aug 16, 2026, and still listed.
  • Community: Upvoted by 28 people, 1 review, 1 award: #2 Product of the Day.
  • Website: bullwatt.com, Domain Rating 15 (DataForSEO).

What Uneed does not check: payments, refunds, or how BullWatt handles your data.

What users say 1

1 review

An average shows from 3 ratings.

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  • canssens-26e2 gets notified, and replied to 1 of 1 reviews.
  • A star rating is enough. A few words help even more.
Zain Sheikh
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Zain Sheikh's avatar

Zain Sheikh

Aug 16, 2026

Target-watt control for a smart trainer with no account and no virtual world is exactly the gap most indoor cycling apps leave open, and open source makes it easy to trust. Which trainer protocols does it support?

canssens-26e2's avatar
canssens-26e2Maker

Hello Zain,

thank you for your review;

you described exactly what we try to do.

For you information the current list of devices tested:

https://www.bullwatt.com/articles/compatible-hardware.html

-Domyos Challenge Bike

-Zwift Hub

-SUITO

-Saris

-Wahoo KICKR CORE

-Xpedo APX Pro

-Elite Direto XR

-Van Rysel home trainer

but globally all FTMS indoor bike trainer with ERG mode are compatible.

Publisher

canssens-26e2's avatar
canssens-26e2
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Questions about BullWatt

BullWatt is a personal life product listed on Uneed, available for free. It's tagged with Sports, Open Source. See the best Sports products for related options.

What is BullWatt?

Bullwatt is a free, open-source, browser-based indoor cycling tool for cyclists.

Is BullWatt legit?

Uneed can't vouch for BullWatt. What it can check: BullWatt was launched on Uneed on Aug 16, 2026 by canssens-26e2 and is still listed, upvoted by 28 people and reviewed by 1 user. Uneed does not check payments, refunds or data handling, so read the reviews and the site's terms before you pay or share personal data.

Is BullWatt free?

Yes, BullWatt is free to use.

What are alternatives to BullWatt?

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What category does BullWatt belong to?

BullWatt is listed under Personal Life on Uneed.

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