🛡️
Privacy by design
A first-party cookie on your own domain, no fingerprinting and no cross-site tracking. No personal data left in URLs. Privacy is a selling point, not a patch.
New · AI-built A/B tests · 14 days free
Artificial intelligence builds your A/B test from start to finish.
You describe what you want in one sentence. The AI reads your page, writes the new version, creates the conversion goals and puts the test live. Anyone runs advanced A/B tests, no code and no agency, for a fraction of what the giant suites charge.
New vs. current checkout
9 days of data · 24,180 visitors
🏆 Variation B wins
Probability of B beating the control
99.7%
decision threshold 95%
A · control
4.80%
B
7.23% +50.8%
- < 3 KBsnippet that never blocks the page
- Bayesianan honest winner, no p-value theater
- Privacy-firstyour own cookie, zero fingerprinting
- Auditedper-account isolation + pentest
✨ Create with AI
You describe it. The artificial intelligence builds the whole test.
Paste your page link and say the goal in plain English. The AI reads the page, writes the new version, creates the conversion events and leaves the test ready for you to approve. What would take a CRO specialist, here the AI does in seconds.
Your pageyoursite.com/offer
What you wantI want more people messaging on WhatsApp
The AI is reading your page...
Contact us
→
Message us on WhatsApp now
🎯 Goal created: WhatsApp click
✓ Test live
- 1You describe
Paste the URL and say the goal in one sentence, like "more leads".
- 2The AI builds it
It writes version B and creates the conversion goals. No code, no selectors.
- 3You approve and launch
Review, tweak if you want and publish. Bayesian stats pick the winner.
Why Donnu exists
Giant-suite intelligence. A price that fits your budget.
A/B testing is usually too amateur (guesswork and spreadsheets, you change the page and hope) or too expensive (heavy suites charging hundreds of dollars a month for a pile of things you never use). Donnu joins the two ends nobody joins: an AI that does a specialist's work and the rigor of the big platforms, at a price that looks like a typo.
Highlights
As advanced as the big suites. As simple as clicking.
What would take a technical team, here you do alone in minutes: build the variation, target the right audience and measure what matters. Without writing a single line of code.
Visual editor
Edit your page by clicking on it. No code.
Click any text, image or button on your own site and build the variation on the spot: change copy, color, size, hide, reorder. The editor opens on your real page, exactly as it is.
- Click and edit right on your live site
- Per-device adjustments: all, mobile, tablet or desktop
- Undo, redo and device preview before publishing
OFFER
A plain headline nobody noticesA new headline that sells more
Buy now
Editing: headline
All📱💻
✏ Change text🎨 Color and size🚫 Hide on mobile
Targeting
Choose exactly where and for whom the test runs.
Filter which pages enter the test by URL and target only the audience that matters. Everyone else keeps seeing the original page, without polluting your numbers.
- Exact URL, contains, starts with or regular expression
- Device, traffic source (UTM) and new or returning visitor
- WordPress tags, detected automatically
- Scheduling with automatic start and end
🔗URL contains /offeractive
📱Mobile only desktop stays out
🎯utm_source = google paid traffic only
👤New visitor first visit to the site
Everyone else sees the original page, flicker-free.
Advanced metrics
Nine ways to measure the conversion that matters.
From the click on your buy button to an event fired by your server: you set one primary goal that decides the winner and secondary goals that track the full picture.
- Page, click, form, scroll, time, video, download, code and API
- Automatic tracking: install the snippet and it just measures
- Bayesian verdict with probability and confidence interval
🌐Page
🖱Click
📄Form
↓Scroll
⏱Time
▶Video
⬇Download
</>Code
✦API
PrimaryClick on "Buy now" decides the winnerForm submission decides the winnerHalf the video watched decides the winner
Advanced analytics
Reports that tell you where, when, and for whom you win.
Ready-made KPIs, a plain-language verdict, and charts anyone can read: daily volume, trend, and the decision timeline. Filter the period in one click and, on Pro, slice by device, traffic source, and visitor type, with a ready-made read per segment.
- KPIs, verdict, and progress toward a reliable conclusion
- Per-day charts, trend, and the decision timeline
- One-click period filter on every plan
- Segments by device, source, and visitor on Pro
24,180 users7.2% rate9 days🏆 B ahead
📱Mobile B wins with a +24% improvement🏆
💻Desktop B ahead, still collecting92%
And all of it without coding. For real.
Step-by-step wizard, tooltips that explain the why, and reports in plain language. The vanguard of A/B testing on the outside, radical simplicity on the inside: any marketer builds, launches and reads the test alone.
How it works
From zero to a winner in three steps.
1
Paste a snippet
One line on your site, once. We have instructions for WordPress, Shopify, GTM, Wix, and code. We verify the install for you automatically.
2
Create the experiment
Define the variations, the traffic split, the targeting, and the goals in a guided wizard. Publish with one click, with no redeploy of your site.
3
Let statistics decide
Follow along in near real time. When there is real evidence, Donnu calls the winner with a probability and a confidence interval. Then you just apply it.
Security and privacy
Security is not an extra. It is the foundation.
We built Donnu on the principle that your data and your visitors' data are untouchable.
🔒
Full isolation between accounts
Multi-tenant with row-level security from day one. Each account sees only its own data, validated by a security audit and penetration testing.
🧯
Fail-safe by default
If our infra is slow, the visitor sees the original page and is left out of the experiment. We never blank out your page because of us.
⚖️
Numbers you can trust
Unique counting on the server, dedupe, sample ratio mismatch (SRM) alerts. A winner is only declared when the evidence holds.
Pricing
A price so fair it makes you smile.
Try any plan free for 14 days. You add a card to start, but you are only charged on day 15 and can cancel anytime, in one click.
AI suites
US$ 300+/month
annual contract and a pile of features you never use
vs
Donnu A/B · AI included
US$ 29/month
no contract, cancel in 1 click, 14 days free
Standard
To validate your first hypotheses with method.
US$29/month
Start 14-day free trial
- 50,000 sessions per month (across all tests)
- 2 experiments running at once
- A/B variations (control + 1)
- 2 metrics per experiment
- 1 connected domain
- You + 1 teammate
- Full report: Bayesian verdict, charts, and period filter
Pro
To scale your tests with fine-grained targeting.
US$49/month
Start 14-day free trial
- Everything in Standard, plus:
- 300,000 sessions per month (across all tests)
- 3 experiments running at once
- Variation C (A/B/C)
- 3 metrics per experiment
- 2 connected domains
- Up to 4 teammates
- Advanced targeting unlocked
- Pro report: segments, source filters, and the decision timeline
Enterprise
Tailored for larger operations.
Custom
Talk to us
- Unlimited experiments, domains, and team
- Everything in Pro
- Dedicated onboarding and support
- Custom limits and billing
Full comparison
| Feature | Standard | Pro | Enterprise |
|---|---|---|---|
| Monthly price | US$ 29 | US$ 49 | Custom |
| Sessions per month (across all tests) | 50,000 | 300,000 | Custom |
| Experiments running at once | 2 | 3 | Unlimited |
| Variations per experiment | A/B (2) | A/B/C (3) | Unlimited |
| Metrics per experiment | 2 | 3 | Unlimited |
| Connected domains | 1 | 2 | Unlimited |
| Team members | 2 | 4 | Unlimited |
| Advanced targeting (device, UTM, visitor, tags, scheduling) | ✕ | ✓ | ✓ |
| Pro report: segment filters, Segments card and the decision timeline | ✕ | ✓ | ✓ |
| Split URL + 9 goal types | ✓ | ✓ | ✓ |
| Bayesian report (probability, CI, SRM) | ✓ | ✓ | ✓ |
| Privacy-first security and per-account isolation | ✓ | ✓ | ✓ |
| Support | Self-service | Self-service | Dedicated onboarding |
Equivalent tools charge hundreds of dollars a month. Donnu delivers the core with the same rigor for a fraction of that.
Frequently asked questions
What people usually ask.
Is there a free plan?
There is no permanent free plan, but you get 14 days free on any plan, with full access. The first charge is only on day 15. Cancel anytime, no penalty.
Do I need a card to try it?
Yes. We ask for a card up front so there is no friction when the trial ends, but nothing is charged in the first 14 days. Cancel before day 15 and you pay nothing. Billing is processed securely by Stripe.
Do I need to know how to code?
No. You paste a snippet once, with ready-made instructions for WordPress, Shopify, Google Tag Manager, Wix, or code. Everything else happens in the dashboard, step by step.
Does it work on any site?
Yes, on any site where you can add a script to the HTML. It covers the root domain and all the subdomains you register.
Is my data and my visitors' data safe?
Yes. A first-party cookie on your domain, no fingerprinting and no cross-site tracking. Accounts are isolated with row-level security, with a security audit and penetration testing. Privacy is part of the project, not an add-on.
How do you decide the winner?
With Bayesian statistics: we compute the probability of each variation beating the control and only declare a winner when the evidence is sufficient (a minimum of visitors, days, and a distribution check). No p-value theater and no encouraging early decisions.
Can I cancel anytime?
Yes. It is monthly with no lock-in. You stay in control of your account and your experiments.
Start discovering what converts today. Free for 14 days.
Full access for 14 days, no charge. You only pay on day 15, if you continue. Cancel anytime.