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TOP SHOPIFY APPS YOU CAN COMPARE
Three highly-rated Shopify apps to compare against DerFit ‑ Size Recommender.
The top-rated Shopify apps by rating × review-volume — a useful comparison baseline against DerFit ‑ Size Recommender.
Judge.me Product Reviews App
Apps#1TOP PICK
5.0044,245 reviews
95/100Audit score
Pick if you're surveying the marketplace
Widely used on this marketplace — not a like-for-like swap. AppRanks found no app sharing DerFit ‑ Size Recommender's category, so this is not a replacement for it — it is a widely-used apps option shown for market context. Compare it against your own requirements rather than as a swap.
TikTok
Apps#2RUNNER-UP
4.8015,459 reviews
84/100Audit score
Pick if you're cost-sensitive
Adjacent tool, different job. Different use case from DerFit ‑ Size Recommender. Listed because it is among the most-adopted apps apps on this marketplace, not because it covers the same job.
Appstle℠ Subscriptions App
Apps#3VALUE PICK
5.008,371 reviews
91/100Audit score
Pick if you're mapping adjacent tooling
Popular alternative to evaluate on its own merits. Solves a different problem than DerFit ‑ Size Recommender. Useful market context; verify the capability overlap yourself before treating it as an option.
SIDE-BY-SIDE COMPARISON
DerFit ‑ Size Recommender versus the top 3.
Five rows, all loaded above the fold. Wins are highlighted; nothing's hidden behind a tab.
RANKS #4 THROUGH #12
The next 9, denser.
Beyond the 0 same-category matches we found, these are widely-used Shopify apps rather than direct replacements — useful for context, not like-for-like.
How these alternatives are ranked
Scored daily. Three signals, weighted and blended. No vendor money changes anything.
45%Feature similarity
N-gram match against DerFit ‑ Size Recommender's feature signature, weighted by category overlap.
35%Audit + rating
Listing quality (0–100) blended with rolling 90-day rating average. Penalizes thin listings.
20%Review velocity
Reviews added in trailing 30 days, normalized by category baseline. Surfaces rising challengers.
Every Shopify alternative on this page is scraped, normalized, and re-scored every 24 hours. We don't accept paid placement, vendor-funded "best of" content, or sponsored ranking — and we publish the rules so you can audit them yourself. If a vendor disagrees with their position, that's between them and the data.
WHEN DOES IT MAKE SENSE TO SWITCH FROM DERFIT ‑ SIZE RECOMMENDER?
Four reasons people leave.
Decision triggers, not marketing. If two or more apply, your shortlist starts with the apps named below each card.
Pricing has outgrown your usage
If your usage of DerFit ‑ Size Recommender has crossed a pricing-tier breakpoint, per-unit cost is usually where alternatives diverge most clearly. Some apps in the list above carry a free tier; others are paid from day one. Compare the published plans on each alternative's page against your current bill — the gap is the only number worth acting on, and it is specific to your usage.
TikTok · Judge.me Product Reviews AppYou need a feature outside the focus
Each Shopify category has a feature spectrum. The "Similar feature set" badge above marks alternatives whose feature signature most overlaps with DerFit ‑ Size Recommender. The "Category leader" badge marks apps that may approach the same category from a different feature angle — useful if you want to widen rather than narrow your toolset.
Judge.me Product Reviews AppSupport response has slowed you down
Support quality is the hardest thing to read from a listing, and it is the most common reason a switch gets made. Read the most RECENT reviews on each alternative's profile rather than the lifetime average — recency is what tells you how the app is supported today, and trailing review velocity is the freshest signal AppRanks tracks.
FREQUENTLY ASKED
Answers built from the data.
Built from the same scores the ranking uses — so they won't contradict the table.
For most accounts under typical category usage, the answer depends on tier. Judge.me Product Reviews App is in the freemium band (Free plan available), while DerFit ‑ Size Recommender is freemium (Free plan available). At parity scale, the cheaper option can save 30–60% — but feature-for-feature swaps usually narrow the gap above the second tier.
VERDICT · UPDATED TODAY
If you're moving from DerFit ‑ Size Recommender, the most common landing spots are Judge.me Product Reviews App (unknown feature match, audit 95/100) and TikTok (pricing leverage + breadth). Skip Loox ‑ Product Reviews App unless your use case is unusual.
If feature parity matters most
→ Judge.me Product Reviews App
Unknown feature parity. Audit 95, 5.00★.
If pricing matters most
→ TikTok
Best for cost-sensitive teams. 4.80★ across 15,459 reviews.
If you're scaling enterprise
→ Appstle℠ Subscriptions App
Strongest scale fit when category usage exceeds typical thresholds. Vendor-evaluate before committing.
Continue your research
Audit DerFit ‑ Size Recommender's listing
See where DerFit ‑ Size Recommender ranks 0–100 on listing completeness, screenshots, and description quality.
Open auditDerFit ‑ Size Recommender vs Judge.me Product Reviews App
Side-by-side feature deltas, shared keywords, rating curves over the trailing 12 months.
Open compareShopify category leaders
Highest-rated Shopify apps by intent. The category-by-category leaderboard.
Open best
