Karla: Upsell & Tracking vs Track by Loop
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 8, 2026.
The short answer
- Karla is detected on 6× as many Shopify stores as Track by Loop: 143 vs 24 as of Nov 8, 2026.
- Track by Loop lists 17 features Karla’s listing doesn’t mention, including Analytics, API, Custom alerts.
Head to head
Because customer experience doesn't end at the checkout.
- Germany
- Denmark
- Austria
- United States
- Australia
- Canada
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Freemium
- · 1-click-upsell
- · Branded tracking page
- · Delivery triggers for automation
- · Multi-language support
- · Real-time tracking
- · Returns
Starter Plan
- · Best for self-service
- · Branded Tracking Page
- · Klaviyo, Postscript, Attentive
- · Up to 2,500 shipments/month
Premium Plan
- · Advanced Reporting
- · Automation Integrations
- · Everything in Starter, plus:
- · Gorgias Integration
- · Included Onboarding
- · Shopify Flow
Plus Plan
- · Delivery Promise
- · Everything in Premium, plus:
- · Split Shipment Support
- · Webhooks and API
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureKarla (gokarla.io) turns post-purchase into a revenue channel. Karla Order Booster shows a one-click offer right after checkout. No payment re-entry. It ships in the same parcel, so you pay shipping once, and orders auto-hold so fulfilment stays clean. Branded delivery tracking pages then keep selling until delivery while eliminating WISMO.
Track by Loop (formerly Wonderment) gives customers full visibility before and after purchase. Display accurate delivery estimates on product pages and at checkout to increase conversion and reduce hesitation. After purchase, branded tracking pages provide real-time order updates and built-in upsell opportunities.
- Flow triggers cover the full delivery lifecycle for automation
- Branded tracking page where customers check shipment status
- Customers report delivery issues directly from the tracking page
- Update shipment status directly from the Shopify order page
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  Karla |  Track by Loop |
|---|---|---|
| Detected stores | 143(ahead) | 24 |
| Net store change, 28 days | +8 | 0 |
| Stores added, 28 days | 8 | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Health & Beauty, Food, Beverages & Tobacco, Apparel & Accessories | Apparel & Accessories, Health & Beauty, Food, Beverages & Tobacco |
| Top store countries | Germany, Denmark, Austria | United States, Australia, Canada |
Reviews
| Measure | Karla | Track by Loop |
|---|---|---|
| App Store rating | Not published | 4.3 ★ |
| App Store reviews | Not published | 76 |
| New reviews, 28 days | Not enough data | 0 |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Karla | Track by Loop |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | $99/month |
| Longest free trial | Not listed | Not listed |
| Plans listed | 1 | 3 |
Listing
| Measure | Karla | Track by Loop |
|---|---|---|
| Shopify category rank | #55 | #41(ahead) |
| Shopify App Charts | #8 in Order tracking | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jan 29, 2026 | Oct 5, 2020 |
| Languages | 7 | 1 |
| Developer | Go Karla GmbH | Wonderment |
FAQ
Karla and Track by Loop: common questions
- Which is more popular, Karla or Track by Loop?
- Karla is detected on 6× as many Shopify stores as Track by Loop: 143 vs 24 as of Nov 8, 2026.
- What features does each app list that the other doesn’t?
- Karla lists 6 the others don’t mention, such as Auto-sync data, Automations, Custom triggers, Customer segments. Track by Loop lists 17 the others don’t mention, such as Analytics, API, Custom alerts, Customer notifications. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 8, 2026; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 8, 2026. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.