Snapshot
ConsentStack is a purpose-built alternative to Osano for consent management. Deeper regulation coverage, transparent pricing, full customization on every tier, and a free tier that actually manages consent.
Pricing
Osano is a privacy platform that bundles consent management with vendor monitoring, DSAR management, and data mapping. If you use all of those, the price makes sense. If you only need consent management, you're subsidizing features you'll never open.
- 30,000 visitors/mo
- Unlimited team members
- 195+ regulations
- 6 native ad integrations
- Customize every detail
- Custom CSS/JS + headless mode
- Analytics + consent logs
- 5 banner layouts, 4 preferences layouts
- Month-to-month, cancel anytime
- 30,000 visitors/mo
- 2 users, 3 domains
- 95+ regulations
- 1 integration (Google Consent Mode)
- UK/GDPR representative service included
- Privacy & legal templates included
- Limited customization options
The bundle premium
Osano Plus includes UK/GDPR representative services and privacy templates alongside consent management. If you need those, the bundle has value. If you need consent management, you're paying $170/month extra for services you may not use.
“The only real downside noted is the price. It's on the higher side compared to other tools, and for smaller organizations or lower-traffic sites, the cost can feel steep.”
Osano customer, G2 reviewerThe scaling math
Osano Plus covers 3 domains. Need more? Custom pricing on the Start tier (demo required). ConsentStack Pro covers 1 site with 2 domains, additional domains at $5/month. Five sites on ConsentStack Pro: $145/month. Five sites on Osano: custom pricing, sales call required.
Source: osano.com/plans/cookie-consent
Consent-First
When all your engineering goes into consent, the product shows it. Regulation coverage, ad platform integrations, full customization, and developer tools all benefit from focused investment.
Twice the regulation coverage
ConsentStack covers 195+ privacy regulations across 157+ jurisdictions. Osano covers 95+ across 50+ countries. The gap is especially pronounced for US state laws: ConsentStack automatically resolves per-state for all 20 enacted state privacy laws. A Virginia visitor gets VCDPA treatment, a Texas visitor gets TDPSA treatment, all from a single toggle. Osano's documentation does not confirm equivalent per-state granularity.
Six ad platforms, not one
ConsentStack sends consent signals natively to Google, Meta, TikTok, Microsoft, Pinterest, and LinkedIn. Osano's integrations are Google-centric: Google Consent Mode v2 and IAB TCF. If you run ads on Meta or TikTok alongside Osano, those platforms never receive consent signals through native APIs. Your ad reporting suffers and you lose attribution data.
Full customization, no strings attached
ConsentStack's visual builder offers 12 color tokens, 5 banner layouts, 4 preferences center layouts, custom CSS and JavaScript injection, and headless mode for fully custom consent experiences. All at $29/month. Osano offers dashboard-level customization and CSS overrides, but users report hitting limits when they need deeper changes. And if you're on the enterprise tier with the “No Fines” guarantee, customizing “text or button sizes” without approval voids the guarantee.
“The solution tries to steer you to a path defined by Osano... in specific cases when the legal/privacy team wants to make some custom choices, it is not as easy to change.”
Osano customer, G2 reviewerPerformance
ConsentStack ships as a single 23KB gzipped JavaScript file with zero external dependencies. Banner appears in ~50ms (no cache), ~12ms with cached config. Independent benchmarks tell a different story for Osano.
DebugBear's CMP performance comparison ranked Osano 10th out of 11 CMPs tested for interaction performance, with a median INP of 225ms. Their analysis found Osano was “the worst performing CMP by a considerable margin” (excluding Google Funding Choices). One test site showed 448ms of processing time blocking the main thread. For context, Cookiebot achieved 57ms median INP. A consent banner should be invisible to your site's performance, not a source of jank.
ConsentStack loads asynchronously with no external dependencies and caches configuration in localStorage with a 24-hour TTL. Returning visitors make zero network requests for config.
Source: DebugBear independent CMP performance comparison.
Free Tier
Osano's free tier shows a consent banner to visitors. It does not block scripts. It does not store consent. Osano's own documentation confirms: “The free tier does not include automated script-blocking or consent storage.” A site owner who installs the free tier and assumes they're compliant has a compliance gap they can't see.
ConsentStack's free tier includes actual script blocking against 5,800+ known tracker domains, consent storage, geo-detection, all consent models, and all 195+ supported regulations. It is a real consent management platform at $0.
The first dollar of real consent management at Osano costs $199. At ConsentStack, it costs $0. And the step from free to full-featured is $29, not $199.
Consent management, not a platform tax.
195+ regulations, a 23KB SDK, and a free tier that actually blocks scripts. From $29/month.
When to Choose Osano
ConsentStack is focused on consent management. Osano is a privacy platform that serves a broader set of needs. Here's when that matters.
You need a bundled privacy platform
If your organization genuinely needs consent management and vendor monitoring and DSAR management and data mapping from a single vendor, Osano provides that bundle. ConsentStack is consent management only. For teams building a first privacy program with a single dashboard, Osano's breadth has real value.
Vendor monitoring is a core requirement
Osano's 11,000+ vendor database with 163-criterion scoring, continuous monitoring, and breach alerts is genuinely unique. No purpose-built CMP offers this. If your privacy program depends on vendor risk assessment integrated with consent data, Osano connects those workflows.
You need mobile SDKs
Osano provides native iOS and Android SDKs for in-app consent management. ConsentStack is currently web-only. If you have mobile apps that need consent flows managed from the same dashboard as your website, Osano covers that.
The guarantee matters to your stakeholders
The $500K “No Fines, No Penalties” guarantee has restrictive terms (enterprise-only, voided by unauthorized customization, modest cap relative to GDPR maximums). But for risk-averse buyers who need something on paper for their board or legal team, its existence is a differentiator.
Osano is a well-funded, B-Corp certified company with strong customer support. For organizations building a broad privacy program, it's a real option. For website consent management, ConsentStack delivers more for less.
FAQ
Yes, for consent management. ConsentStack covers 195+ regulations, costs $29/month, includes 6 native ad platform integrations, and offers full customization including headless mode. Osano bundles consent with vendor monitoring and DSAR management at $199/month. If consent is your primary need, ConsentStack delivers more consent functionality for less.
Osano Plus costs $199/mo for 30,000 visitors, 2 users, and 3 domains. ConsentStack Pro costs $29/mo for 30,000 visitors, unlimited team members, and all consent features. Osano's free tier lacks script blocking and consent storage. ConsentStack's free tier includes both. The gap between Osano's free tier and first paid tier is $199. Between ConsentStack's free and Pro, it is $29.
Yes, on every tier including free. 195+ regulations across 157+ jurisdictions with automatic per-state US resolution for all 20 enacted state privacy laws. Enable Global Compliance Mode (one toggle) and every visitor gets the correct consent experience. No per-region configuration required.
Yes. Add the ConsentStack script tag to your site, configure your banner in the visual builder, and publish. No data migration needed. Consent state is collected fresh per visitor. Most teams complete the switch in under an hour.
No. ConsentStack tracks 5,800+ tracker domains for script classification but does not offer vendor risk scoring or breach alerts. Osano's vendor monitoring (11,000+ vendors, 163-criterion scoring) is genuinely unique. If vendor risk assessment is a core requirement, Osano offers something ConsentStack does not.
Enterprise-only, voided by unauthorized customization (including changing text or button sizes), capped at $500,000 against GDPR's EUR 20 million maximum. ConsentStack does not offer a financial guarantee but does not restrict what you can customize. Full customization is available on every tier.
For showing a banner, yes. For compliance, no. Osano's free tier does not block scripts or store consent. It shows a notification but does not manage consent. Real consent management starts at $199/month with Osano. ConsentStack's free tier includes script blocking, consent storage, geo-detection, and all consent models.
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