Second Loop vs SELLIT9 Trade‑in, Discounts
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 14, 2026 for Second Loop, Jul 18, 2026 for SELLIT9 Trade‑in, Discounts.
The short answer
- Only Second Loop lists a free plan.
- Second Loop lists 3 features SELLIT9 Trade‑in, Discounts’s listing doesn’t mention, including Cart discounts, Coupons, Gifts.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Basic
- · 5 Trade ins
Starter
- · 30 Trade Ins
Growth
- · 100 Trade ins
Pro
- · Unlimited Trade Ins
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureSecond Loop provides a complete trade-in management system. Customers can submit trade-in requests through a simple form, select products, and upload images. Merchants can review requests in one dashboard, approve or reject them, and issue gift cards, discount codes, or COD. Merchants can also customize the form design. This helps manage trade-ins and handle used items efficiently.
Turn customers' pre-owned items into instant store credit (gift cards or discount codes), unlocking savings before checkout. Customers trade in used items and receive instant store credit. Merchants never touch the trade-ins, SELLIT9 handles everything - reimbursing the merchant for the credit issued. Boost engagement, increase order value, conversion rates, and strengthen loyalty.
- Customers can easily submit trade-in requests with product details and images.
- Merchants can review, approve, or reject requests from a single dashboard.
- Merchants can issue gift cards, discount codes, or COD after approval.
- Trade-in: Let customers trade in items for immediate checkout credit.
- Seamless Integration: Easily connect to your store, and we help drive awareness.
- Sustainable Solution: Appeal to customers seeking eco-friendly shopping options.
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 |  Second Loop |  SELLIT9 Trade‑in, Discounts |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | Second Loop | SELLIT9 Trade‑in, Discounts |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 5 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Second Loop | SELLIT9 Trade‑in, Discounts |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $19/month | No monthly plan listed |
| Longest free trial | Not listed | Not listed |
| Plans listed | 4 | Not published |
Listing
| Measure | Second Loop | SELLIT9 Trade‑in, Discounts |
|---|---|---|
| Shopify category rank | #979 | #325(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Apr 8, 2026 | Apr 21, 2025 |
| Languages | 1 | 1 |
| Developer | Matt Burnett | Sell It9 Inc |
FAQ
Second Loop and SELLIT9 Trade‑in, Discounts: common questions
- Is Second Loop or SELLIT9 Trade‑in, Discounts cheaper?
- Only Second Loop lists a free plan. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- Second Loop lists 3 the others don’t mention, such as Cart discounts, Coupons, Gifts. 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 Oct 14, 2026 for Second Loop, Jul 18, 2026 for SELLIT9 Trade‑in, Discounts; 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 Oct 14, 2026 for Second Loop, Jul 18, 2026 for SELLIT9 Trade‑in, Discounts. 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.