Side-by-side comparison · 24 data points
Know what customers need to know before they buy with Product Knowledge Intelligence.
| Answerbase Product Knowledge | Fitline‑ AI Product Size Guide | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated | — | — |
Add size charts with AI size recommendations so shoppers pick the right fit before buying.
| Metric | Answerbase Product Knowledge | Fitline‑ AI Product Size Guide |
|---|---|---|
| Rating | ★ 5.0 ★ | 4.0 ★ |
| Total reviews | ★ 11 | 1 |
| Free plan | — | ★ Yes |
| Pricing | From $149/month | ★ Free |
| Built for Shopify | — | — |
| Pricing tiers | 3 tiers | — |
| Listed features | 4 | ★ 5 |
| Languages | 1 supported | 1 supported |
| Listed since | Apr 2018 | Aug 2026 |
Based on the data on this page, Answerbase Product Knowledge is the stronger choice for most Shopify App Store merchants — 5.0★ vs Fitline‑ AI Product Size Guide's 4.0★ is a meaningful gap that usually reflects real product or support quality differences across the user base.
On pricing, Fitline‑ AI Product Size Guide offers a free tier (Free) while Answerbase Product Knowledge starts at From $149/month. The free option meaningfully reduces evaluation cost, particularly at low usage volumes where the entry-paid tier can outpace the value delivered.
Recommended by size: small/early-stage merchants who need fast install and low risk should default to Answerbase Product Knowledge; mid-market and enterprise merchants with specific feature requirements should evaluate both — Fitline‑ AI Product Size Guide's 1-review base may include the workflow context that matches your specific use case better than Answerbase Product Knowledge's broader-but-shallower coverage.
This verdict is generated from the live marketplace data on this page — rating, review count, pricing tier, and category position all refresh from the canonical Shopify App Store listing every 24 hours. AppRanks does not accept payment to influence comparison outcomes; the methodology is documented on the About page and applies identically to every pair on the site.
Read each app's audit: Answerbase Product Knowledge audit • Fitline‑ AI Product Size Guide audit
| Keyword | Answerbase Product Knowledge | Fitline‑ AI Product Size Guide |
|---|---|---|
| ai faq bot | #37 | Not ranked |
| faq chatbot | #86 | Not ranked |
| ai assistant | #239 | Not ranked |
No tracked changes.
Fitline‑ AI Product Size Guide is the cheaper option — it offers a free plan (Free). Answerbase Product Knowledge starts at From $149/month. Both publish their pricing on the Shopify App Store; AppRanks mirrors what's listed on each refresh cycle.
Answerbase Product Knowledge has the higher average rating (5.0★ from 11 reviews) compared to Fitline‑ AI Product Size Guide (4.0★ from 1 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.
Answerbase Product Knowledge holds the higher average rating (5.0★ vs 4.0★). That is the one dimension AppRanks can separate them on here — read both apps' detail pages for the feature breakdown and recent listing changes.
Both apps are one-click installs from the Shopify App Store. Answerbase Product Knowledge has the deeper published review base (11 vs 1), which often — though not always — accompanies better-tested setup docs. AppRanks doesn't measure setup time directly: read the recent reviews on each app's detail page for user-reported install experience.
Answerbase Product Knowledge typically suits early-stage and growth-mode teams based on its published review base (11 reviews). Fitline‑ AI Product Size Guide typically suits early-stage and growth-mode teams based on its published review base (1 reviews). A larger review base generally means the app has been exercised at scale — relevant if you are processing high volume or handling enterprise compliance requirements.
Migration support varies by app and category. Answerbase Product Knowledge and Fitline‑ AI Product Size Guide both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from Fitline‑ AI Product Size Guide" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
