Convert.com is a capable mid-market A/B testing tool. But it has no free tier, charges by Monthly Tested Users (meaning costs scale with traffic), and lacks per-experiment anti-flicker tuning. Segmently is simpler, more transparent, and free to start.
$0
Segmently starting price
$299/mo+
Convert.com minimum (annual)
Flat rate
Segmently pricing model
| Feature | Segmently | Convert.com |
|---|---|---|
| Free tierSegmently has a permanent free plan: one project, one active experiment, zero time limit. You can run real experiments on a live site for free as long as you need. Convert.com offers a 15-day free trial, after which you must upgrade or lose access. Convert has no free plan; 15-day trial only | ||
| Starting priceConvert.com's Growth plan starts at $299/mo billed annually ($399/mo month-to-month). Segmently starts at $0/mo with a permanent free tier, and paid plans begin at $499/mo. | $0/mo | $299/mo (annual) |
| Pricing modelConvert.com uses an MTU (Monthly Tested User) model: the more traffic you expose to experiments, the more you pay. As your site grows, your bill grows automatically. Segmently uses flat per-tier pricing. Your bill does not change based on how many visitors participate in your experiments. Convert charges per Monthly Tested User; costs scale with traffic | Flat per tier | MTU-based slider |
| Self-serve signupBoth tools allow self-serve sign up without a sales call. Convert offers a 15-day trial. Segmently offers a permanent free tier. | ||
| Single-tag installation (one <script> tag)Both Segmently and Convert.com install with a single HTML script tag. Paste one line of code before </body> and both tools are active. No npm packages, no build steps, no developer required for the initial install. The complete testing runtime is delivered in that one tag. | ||
| Transparent public pricingBoth Segmently and Convert.com publish their pricing publicly. This is a meaningful distinction from Optimizely, which withholds pricing until you are in a sales cycle. | ||
| Visual editor (no-code)Both tools include a visual editor. Convert.com's editor layers on a WYSIWYG interface plus a code editor. Segmently's editor uses your already-installed snippet running on your own domain, which means it works correctly on any JavaScript framework including React, Next.js, and Vue without proxy rewrites that can break SPAs. | ||
| Anti-flicker protectionBoth tools prevent the original page from flashing before experiment changes are applied. Convert uses their own SmartInsert technology applied globally. Segmently applies anti-flicker on every non-iframe page load by default, with no configuration needed. | ||
| Lightweight snippet (< 10 KB)Segmently's snippet ships under 10 KB minified and gzipped. Every extra kilobyte of blocking script adds time before experiment changes can run. Convert's snippet is well-optimized for a full-featured tool but includes more built-in libraries and is noticeably heavier than Segmently's minimal implementation. Segmently is under 10 KB; Convert is compact but heavier | ||
| Per-experiment activation delaySegmently gives every experiment its own activation delay setting (e.g. 200ms, 500ms, or 0 for instant). This lets you tune the reveal timing based on how long that specific page takes to load its dependencies. Convert's anti-flicker is a global configuration in their script tag, not per-experiment. Segmently lets you set a custom reveal delay per experiment; Convert uses a global config | ||
| SPA / React / Next.js supportSegmently automatically patches history.pushState and intercepts client-side navigation events to re-apply experiment changes after each route transition, with zero configuration. Convert.com documents an approach using custom JS Conditions and polling to handle SPAs, but it requires manual setup per application. Convert requires custom polling code for SPA route changes | ||
| URL targeting rulesBoth tools support URL targeting using exact match, contains, starts with, ends with, and regex patterns. | ||
| Device targetingBoth tools let you target desktop, mobile, or tablet visitors. | ||
| Geotargeting (country, city)Convert.com includes location-based targeting (country, region, city) in all paid plans. Segmently does not yet have built-in geotargeting, though it can be achieved via custom JavaScript targeting in experiment conditions. Native geotargeting is on the Segmently roadmap. On Segmently roadmap; Convert includes geo in all plans | ||
| Cookie-based targetingConvert.com allows you to target visitors based on specific cookie values, useful for identifying logged-in states, known segments, or third-party tool data. Segmently does not yet have a native cookie-targeting UI, though it can be done via the custom JS conditions field. Segmently roadmap item | ||
| Traffic source targetingConvert.com lets you target by referral source (Google, direct, specific domains). Segmently does not yet have native traffic source targeting, though UTM parameter conditions can approximate this. Segmently roadmap item | ||
| Time of day / day of week targetingConvert.com can activate experiments only during certain hours or on specific days of the week, useful for testing shift-specific offers, business-hours messaging, or weekend promotions. Segmently does not yet have time-of-day targeting built in. Segmently roadmap item | ||
| Language targeting Segmently roadmap item | ||
| Custom JavaScript targeting conditionsBoth tools allow arbitrary JavaScript expressions as targeting conditions. This means any data you can read from the DOM, cookies, localStorage, or window object can be used to decide whether a visitor enters an experiment. | ||
| Traffic percentage controlBoth tools let you dial the experiment to a percentage of eligible traffic, keeping the rest on the control experience. | ||
| Per-variant CSS/JS injection | ||
| Multiple variants per experiment (A/B/C/n)You are not limited to a two-way A vs B split. Both tools let you run experiments with three, four, or more variants simultaneously, each with its own traffic allocation. A single experiment can test A vs B vs C vs D without running separate sequential tests. | ||
| Conversion goal tracking | ||
| Multi-page funnel goalsBoth tools support multi-step funnel tracking. Segmently includes this on Professional and above plans via the Funnel Goals feature. | ||
| Scroll depth conversion goalA scroll depth goal fires a conversion when a visitor scrolls past a defined depth threshold (e.g. 50% of the page). Convert.com has this as a built-in goal type. Segmently tracks scroll depth milestones automatically, but the conversion goal UI does not yet offer a one-click scroll trigger; it can be wired via a custom JavaScript event goal in the experiment editor. Segmently: achievable via custom JS event goal; native scroll trigger not yet in UI | ||
| Statistical significance engineConvert.com offers both Frequentist (NHST) and Bayesian statistics engines, as well as sequential testing. Segmently uses a chi-squared significance test (Frequentist) to call winners. Both correctly identify winning variants with p < 0.05 thresholds. Convert includes both Frequentist and Bayesian engines; Segmently uses chi-squared (Frequentist) | ||
| Persistent variant assignmentOnce a visitor is bucketed into a variant they always see that variant on every return visit, days or weeks later. This is non-negotiable for trustworthy results: if the same visitor saw different variants on different visits, your conversion data would be noise. Both tools persist assignments in browser storage and in the database. | ||
| Only first-party cookiesBoth Segmently and Convert.com store visitor assignment data exclusively in first-party cookies set on your own domain. No third-party cookies are used. This is important for GDPR compliance, ITP (Intelligent Tracking Prevention) resilience, and Safari and Firefox compatibility, all of which aggressively block third-party tracking domains. | ||
| Non-PII visitor trackingVisitor identifiers in both tools are randomly generated UUIDs with no connection to personal data. Segmently never stores names, emails, IP addresses, or any identifying data in its cookies or assignment records. The visitor ID is a pseudonymous token used only to maintain assignment consistency across sessions. | ||
| Sample Ratio Mismatch (SRM) checksSRM (Sample Ratio Mismatch) detection automatically flags when the observed traffic split between variants is statistically inconsistent with the configured split, which can indicate a bucketing bug or data quality issue. Convert.com includes this automatically. Segmently does not yet have SRM detection. Segmently roadmap item | ||
| Collision preventionCollision prevention ensures that the same visitor is never simultaneously bucketed into two conflicting experiments on the same page. Segmently handles this through traffic percentage controls but does not yet have an automated collision detection system. Convert includes this as a first-class feature. Segmently roadmap item | ||
| Sequential testingSequential testing lets you peek at results and call a winner early without inflating false positive rates, by using a statistical design that accounts for repeated looks at the data. Convert.com includes this on Pro and Enterprise plans. Segmently roadmap item; available in Convert Pro+ | ||
| Multivariate testing (MVT)MVT tests multiple elements simultaneously and auto-generates all combinations as test cells. Convert.com includes multivariate testing. Segmently currently supports A/B testing only; MVT is on the roadmap. Segmently roadmap item | ||
| Split URL testingSplit URL testing lets you redirect a segment of visitors to an entirely different page URL instead of applying DOM changes on the same page. Both tools support this. Segmently appends a secure handoff parameter to the redirect URL so page views, conversion goals, and funnel steps are correctly attributed to the variant on the destination page, even when that URL does not match the original experiment targeting rules. Redirect segments to a different URL with full tracking on the destination page | ||
| Experiment schedulingBoth tools let you set a start date, end date, or both for an experiment. Segmently includes scheduling on Professional and above plans. | ||
| Change history per experimentConvert.com logs a history of every change made to an experiment: who changed what and when. Segmently does not yet have per-experiment change history, though an org-level audit log is on the roadmap. Segmently roadmap item; Convert includes this on Pro+ | ||
| Live logs & real-time event streamConvert.com includes live logs: a real-time stream of experiment events showing exactly which visitors saw which variants and which goals fired. Extremely useful for QA and debugging. Segmently does not yet have a live event log. Segmently roadmap item | ||
| Analytics dashboard | ||
| Raw data export / CSV exportBoth tools allow export of experiment data. Segmently exports analytics data to CSV and JSON on demand. Convert offers CSV export with raw data export available on Pro and above. | ||
| Slack experiment notificationsSegmently fires Slack notifications for 15 specific events: experiment starts, pauses, archives, statistical significance reached, project creation, member activity, billing events, and more. Each event type is individually toggled per organization. Convert.com can connect to Slack via integrations but lacks purpose-built, per-event-type alerting at this granularity. Segmently fires 15 granular org and experiment events to Slack; Convert has general integrations | ||
| GA4 / Mixpanel / webhook integrationsBoth tools support sending experiment data to GA4, Mixpanel, and outgoing webhooks. Segmently includes these on the Business tier. Convert includes 90+ integrations across all plans. | ||
| Number of third-party integrationsConvert.com offers over 90 native integrations including Salesforce, Marketo, Heap, Segment, and dozens of other analytics and marketing platforms. Segmently currently ships four native integrations: GA4, Mixpanel, Slack, and outgoing webhooks. Custom webhooks can route data to most external tools, though one-click native connectors are more limited. Expanding the integration library is on the Segmently roadmap. Segmently: 4 native connectors (GA4, Mixpanel, Slack, webhooks); Convert: 90+ | ||
| API accessBoth tools provide REST API access for programmatic experiment management. | ||
| Team managementBoth tools include team management with role-based permissions. Segmently supports owner, admin, and member roles with seat counts per tier. | ||
| Single Sign-On (SSO)Convert.com offers SSO / SAML login on Enterprise plans. Segmently does not yet have SSO, though it is planned as a Medium Priority item for Enterprise tier. SSO on Segmently roadmap; Convert includes SSO on Enterprise | ||
| Multi-arm bandit (auto-allocate)Multi-arm bandit (auto-allocation) shifts traffic toward the better-performing variant in real time, maximizing conversions while the test runs. Segmently ships this as "Auto Traffic Optimization" — an experiment-level toggle that continuously monitors per-variant conversion rates and gradually moves traffic up to 80% toward the winner at peak significance. Auto Traffic Optimization toggle on Segments tab | ||
| Feature flags / full stack testingFull stack testing lets you run server-side experiments and roll out features using code-level flags instead of client-side script injection. Convert.com supports feature flags and full stack experimentation on higher plans. Segmently does not yet have this capability. Segmently roadmap item; Convert Enterprise | ||
| Data segregation (dedicated infra)Data segregation means your organization's data is housed on physically separate database infrastructure from other customers. This is distinct from logical isolation (filtering rows by team ID). Convert.com offers this as an Enterprise add-on. Segmently uses logical data isolation today; physical segregation is a future Enterprise item. Segmently roadmap; Convert Enterprise add-on at additional cost | ||
| Transparent pricing (no MTU surprises)Convert's pricing is transparent, but it scales with your traffic volume via the MTU model. As your site grows and more visitors are bucketed into experiments, your monthly bill increases automatically. Segmently's plans are flat-rate; traffic growth does not change your bill. Convert's MTU slider means costs change as traffic grows | ||
| Contract requiredNeither Segmently nor Convert requires long-term contracts. Both are subscription-based and can be canceled at any time. |
Information based on publicly available documentation as of March 2026.
Convert.com prices by Monthly Tested Users: the more visitors you bucket into experiments, the higher your bill. Their Growth plan starts at $299/month for 100K tested users per month. If your traffic grows to 250K/month, you move to the next tier. At 1M/month, you are on their Pro plan at $420/month annually.
That sounds reasonable until the math hits differently: the whole point of running A/B tests is to grow your traffic and conversions. Every time your experimentation program succeeds, your Convert bill goes up. Segmently uses flat-rate per-tier pricing. Your plan does not change based on how many visitors participate in your experiments.
Convert.com offers a 15-day free trial, after which you must choose a paid plan. Segmently has a permanent free tier: one project, one active experiment, real data, no expiry. For solo founders, smaller teams, and those evaluating the tool seriously before committing, this is a meaningful difference.
Convert.com uses their SmartInsert technology to handle flicker globally across your account. It works well, but every experiment is governed by the same timing configuration. Segmently lets you set an activation delay on each individual experiment: 0ms for a lightweight page, 400ms for a page that loads a heavy third-party script before the experiment should reveal. This level of per-experiment tuning matters when you are running many tests across pages with different load characteristics.
Convert.com has been in the market longer and has a deeper feature set in certain areas. They include geotargeting, cookie and traffic source targeting, time-of-day targeting, SRM checks, collision prevention, sequential testing, and multivariate testing. They also offer full stack experimentation and feature flags at the Enterprise tier.
If your organization needs those specific capabilities today, Convert is a fair choice at your budget. Segmently has most of these on the roadmap, including geo, cookie targeting, MVT, SRM checks, and collision prevention, with the intent of including them at comparable or lower price points.
Choose Segmently if you want to start free and only pay when you scale, need flat-rate pricing that does not penalize traffic growth, want per-experiment anti-flicker tuning, run experiments on React or Next.js apps and need zero-config SPA support, or want to be up and running today without a 15-day countdown.
No trial clock. No MTU counter. One script tag. Your first experiment live in under five minutes.