webtru, built for Japan first
webtru comes from DataSign and is designed around Japanese compliance, particularly the external transmission rules, alongside GDPR. It does the modern measurement work properly: the documentation covers Google Consent Mode v2 setup, including how webtru's own consent categories map to Google's consent types, and it also supports Microsoft Clarity's consent mode, which not many CMPs bother with. Reviewers describe it as straightforward to implement. If your audience is in Japan, this is a sensible product and a local vendor who understands the local rules.
Two things are worth checking before you choose it for anything wider. The first is what's metered and what's gated. webtru publishes three plans — Free, Basic and Plus. The free plan is ¥0, but its published CMP profile caps it at 1,000 requests a month, which is a testing allowance rather than a live site. Pricing above that is request-based and varies with traffic, and the Google Tag Manager consent mode feature is available on the Basic and Plus plans rather than the free one. So the free tier is a way to try it, not a way to run on it.
The second is IAB TCF. webtru's public materials don't confirm TCF support or name a version. If you sell European programmatic advertising, that's the first question to ask, not the last. Most of the documentation is also in Japanese, which is fine if your team reads Japanese and slow if it doesn't.
Conzent vs webtru at a glance
| Conzent | webtru | |
|---|---|---|
| Pricing model | Per site, not per view — from a few euros per site per month, and the price per site drops as you add more. See current tiers | Per request, across Free, Basic and Plus plans. A third-party pricing guide lists Basic from ¥6,600/month including tax, with final charges varying by traffic and quoted individually |
| What happens when you grow | Nothing — no allowance to exceed, no overage rate, no surprise line item | The bill follows traffic — plans carry request limits and pricing is quoted against monthly traffic, so cost planning gets harder as you scale |
| GDPR / IAB TCF / Consent Mode v2 | ✓ GDPR, CCPA & 25+ regional laws ✓ IAB TCF v2.4 ✓ Consent Mode v2 (Basic & Advanced) — all included, every plan | Built for Japan's external transmission rules and GDPR · Google Consent Mode v2 supported and documented · Microsoft Clarity consent mode supported · IAB TCF support and version not confirmed in public materials |
| CMS & platform integrations | 6 native integrations: WordPress, Wix, Joomla, Drupal, TYPO3, Umbraco — plus a universal script tag for anything else | Google Tag Manager integration, available on the Basic and Plus plans; no published CMS-by-CMS integration list |
| Self-hosted / open source | ✓ Yes — OCI, Apache 2.0, one-line installer, unlimited sites and pageviews | ✗ Not published — no open-source or self-hosted edition documented |
| EU data residency | ✓ Yes — managed cloud data hosted in Germany; self-host it and it never leaves your own server | No data residency options documented publicly; the vendor and product are Japan-based |
| Free tier | ✓ Free forever if self-hosted; free trial on managed cloud | Yes at ¥0, but capped at 1,000 requests/month and without the GTM consent mode feature, which sits on the paid plans |
webtru figures are taken from its public pricing page, its published CMP profile, its documentation and Japanese third-party pricing guides, all current in 2026; the ¥6,600 Basic figure comes from a third-party guide rather than webtru's own page. Prices change — confirm the numbers with webtru before you switch. See Conzent's current plans.
Who each one suits
If your traffic is mostly Japanese and your compliance concern is the external transmission rules, webtru is a local product from a local vendor and that counts for a lot. Keep it.
Conzent makes more sense when your visitors are spread across Europe and beyond, when you need IAB TCF stated and included rather than confirmed on request, when you run several sites and would rather the per-site price fell as you added them, or when you want documentation and support in a language your team works in every day.
Switching from webtru? Here's what to expect
Moving CMPs follows the same shape whichever vendor you leave: install the new script alongside the old one for a short test window, run a fresh scan to rebuild your cookie categories, configure and preview the banner, then switch the live script and remove the old one. Historical consent records stay with the vendor that collected them and don't transfer — that's normal for any CMP migration rather than anything specific to webtru, so plan to start your consent log fresh. If you're mid-contract, check the renewal date before you start.
Why teams switch from webtru to Conzent
A bill you can predict
Request-based pricing means a good traffic month arrives as an invoice. Conzent charges for the number of sites you run, so the cost is the same in a quiet month and a record one.
Compliance features aren't a tier
IAB TCF v2.4 and Consent Mode v2, Basic and Advanced, are on every Conzent plan including the self-hosted one. Nothing you need sits one plan above the one you're on.
An exit that doesn't cost anything
Conzent's core is open source under Apache 2.0. If the commercial relationship ever stops working for you, you can run the same platform on your own server for free instead of starting a vendor search.
Frequently asked questions
Is webtru really free?
There is a genuine ¥0 plan, but its published CMP profile caps it at 1,000 requests per month and the Google Tag Manager consent mode feature sits on the Basic and Plus plans. It's suited to testing rather than running a live site. Conzent is free forever if you self-host it, with no cap on sites or pageviews.
How much does webtru cost?
Plans are Free, Basic and Plus, priced by request volume. A Japanese third-party pricing guide lists no initial cost and Basic from ¥6,600/month including tax, with the final charge varying by monthly traffic and quoted individually. Confirm current figures with webtru directly.
Does webtru support IAB TCF?
Its public materials don't confirm TCF support or name a version, so ask directly if you need it. Conzent runs IAB TCF v2.4 on every plan, self-hosted included.
Can I self-host webtru?
No self-hosted or open-source edition is documented publicly. Conzent's core ships as an OCI image under the Apache 2.0 licence and installs with one line on your own server, with no limit on sites or pageviews.