Atchoo! and Intelligems both run A/B tests on Shopify stores, but they were built to answer very different questions. Intelligems is the specialist for testing what you charge, prices, discounts, shipping rates, with analytics built around profit. Atchoo is the specialist for testing what your product page looks like, with a lightweight template-swap approach and a focus on add-to-cart rate. If you know which question you’re asking, this comparison is short. If you’re not sure yet, read on.
TL;DR verdict
| Atchoo! | Intelligems | |
|---|---|---|
| Built for | Product page layout and content testing | Price, discount and shipping-rate testing |
| Testing mechanism | Swaps Shopify product templates within your existing theme | Varies what different visitors are charged, plus content, theme, template and checkout testing |
| Primary metric | Add-to-cart rate, with Bayesian analysis | Profit-focused analytics (margin, not just conversion) |
| Price testing | No, deliberately out of scope | Yes, it’s the core of the product |
| Typical customer | Stores that want fast, affordable page tests | Established brands optimizing pricing and margins |
| Pricing | Flat $39/mo (Pro) for full A/B testing | Positioned toward larger brands; check their current pricing |
Short version: if you need to test prices, use Intelligems, Atchoo doesn’t do price testing and won’t pretend to. If you want to test product page layouts quickly and affordably, Atchoo is the better fit.
What Intelligems does
Intelligems is best known as the price-testing app for Shopify. Its core job is letting you show different prices, discount structures, or shipping rates to different visitor groups, then measuring the impact, not just on conversion rate, but on profit. That last part is its real differentiator: a lower price often lifts conversion while quietly shrinking margin, and Intelligems’ analytics are designed to catch exactly that trade-off, reporting on profit per visitor rather than conversion alone.
Its scope is broad. Alongside pricing, Intelligems tests content, themes, templates and checkout, and its higher tiers add capabilities like subscription pricing and combination tests. But the reason most brands reach for it is the pricing-and-profit combination. The product leans toward established and larger-scale brands: stores with enough order volume to run meaningful pricing experiments and enough margin sensitivity to care about profit-per-visitor.
We won’t quote their pricing here because it changes and we’d rather not put stale numbers in front of you, check their current pricing page before deciding. Qualitatively, it’s positioned as a serious tool for serious volume, with price testing sitting on its premium tiers, and priced accordingly.
What Atchoo does
Atchoo! A/B tests product page templates. The workflow looks like this:
- You create an alternate product template in your existing theme using Shopify’s native template suffixes (e.g.
product.variant-b), no theme duplication, no code. - Atchoo assigns each visitor deterministically to a variant via a first-party cookie, so the same person always sees the same version. Traffic splits 50/50 by default (configurable).
- Variant visitors see the alternate template through Shopify’s native template
viewmechanism. - Product views and add-to-cart events are tracked in real time through a Shopify app proxy, first-party, no third-party cookies, with a traffic-source/UTM breakdown.
- Bayesian analysis calls the winner.
The primary metric is add-to-cart rate, because it’s the closest thing to revenue that a product page change can directly control. Anti-flicker is scoped only to product pages with an active test, with a hard failsafe so it never hides the rest of your storefront.
Equally important is what Atchoo doesn’t do: no price testing, no checkout testing, no sitewide testing, no personalization, no heatmaps. It does one job.
Testing approach: template swap vs price variation
The mechanical difference between the two apps explains almost everything else about them.
Atchoo’s template swap works entirely inside your existing theme. Your control and variant are two templates in the same theme, sharing the same sections, snippets, and settings. When you update your theme, both variants inherit the change. There’s nothing to keep in sync and nothing to clean up when the test ends, you just keep the winning template.
Intelligems’ price testing doesn’t change your page layout; it changes what the visitor is charged. That’s a fundamentally different kind of experiment with different risks. Two visitors comparing carts can discover they were charged different amounts, which is a customer-trust question you should think through before running any price test, we’ve written about the risks of price testing on Shopify separately. Intelligems is built by people who understand those risks, but they’re inherent to the experiment type, not the tool.
For layout testing, the comparison flips: Atchoo’s template mechanism is native to how Shopify themes already work, which keeps the moving parts to a minimum.
Analytics: profit focus vs add-to-cart focus
Intelligems’ analytics are profit-centric. For pricing experiments that’s the right lens, conversion rate alone will mislead you when the thing you’re varying is the price itself.
Atchoo’s analytics center on add-to-cart rate with a Bayesian read-out. For a product page layout test, add-to-cart is a sensitive, high-volume signal that responds directly to the change you made, which means tests conclude faster, particularly useful if you don’t have enterprise traffic. (If your store is on the smaller side, our guide to A/B testing low-traffic stores covers why metric choice matters so much.) Atchoo also breaks results down by traffic source and UTM, so you can see whether a variant wins with paid traffic but not organic, for example.
Neither approach is “better” in the abstract. They’re calibrated to different experiments.
Pricing philosophy
Atchoo’s pricing is flat and public: full A/B testing with Bayesian analysis is $39/mo (or $399/yr) on the Pro plan, with a 14-day free trial. There’s also a Free plan and a $9.99/mo Advanced plan for template management without testing. Flat pricing means your costs don’t creep up as your traffic grows, see the pricing page for details.
Intelligems, as far as we can tell, prices for the market it serves: established brands where a pricing experiment can move meaningful revenue, with price testing gated to its premium tiers. That’s a fair trade for what it does, but it’s a different budget conversation than a flat $39/mo. As always with competitor pricing, verify the current numbers on their site, we’re deliberately not quoting figures we can’t guarantee are up to date.
Who should pick which
Pick Intelligems if:
- You want to test prices, discounts, or shipping rates, full stop. Atchoo doesn’t do this.
- You need profit-per-visitor analytics rather than conversion metrics.
- You’re an established brand with the order volume to power pricing experiments.
Pick Atchoo if:
- Your questions are about the product page itself: layout, imagery, copy, trust signals, CTA placement.
- You want tests running in minutes using Shopify’s native templates, without theme duplication.
- You want flat, predictable pricing that works for stores well below enterprise scale.
- Add-to-cart rate is the metric you want to move.
Using both isn’t crazy, either. They test different things through different mechanisms, so a store could run pricing experiments in Intelligems and page-layout experiments in Atchoo, just don’t run them on the same product simultaneously, or you won’t know which change caused what.
Frequently asked questions
Can Atchoo test prices?
No. Price testing is deliberately outside Atchoo’s scope, and honestly, it’s a decision we’d encourage you to think hard about anyway, see our post on price testing risks. If price testing is your priority, Intelligems is the right category of tool.
Does Atchoo duplicate my theme?
No. Tests run as alternate templates inside your existing theme, using Shopify’s built-in template suffix system. Your theme stays the single source of truth.
Is Intelligems overkill for a small store?
Pricing experiments need substantial order volume to reach a trustworthy conclusion, and Intelligems is positioned toward brands that have it. If you’re smaller, page-level testing on a high-volume metric like add-to-cart rate is usually the more practical starting point.
The bottom line
This isn’t really an either/or, it’s a “what are you testing?” question. Intelligems is the credible specialist for price, discount, and shipping experiments with profit analytics to match, and if that’s your job to be done, use it. Atchoo is the fast, affordable way to test product page templates on Shopify, with deterministic visitor assignment, first-party tracking, and Bayesian results focused on add-to-cart rate. For a wider look at the whole category, see our roundup of the best Shopify A/B testing apps and our complete guide to Shopify A/B testing.
If product page testing is what you’re after, you can try Atchoo! free for 14 days on the Pro plan, set up an alternate template, split your traffic, and see real add-to-cart data within days. Details on the pricing page.