Kaching Discount Upsell Popup vs StashApps Subscription Upsell
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 9, 2026 for Kaching Discount Upsell Popup, Apr 21, 2026 for StashApps Subscription Upsell.
The short answer
- Only Kaching Discount Upsell Popup lists a free plan.
- Kaching Discount Upsell Popup lists 10 features StashApps Subscription Upsell’s listing doesn’t mention, including Bundles, Custom rules, Drag-and-drop editor.
Head to head
- United States
- United Kingdom
- Canada
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Development stores
- · Free for all development stores
- · Unlimited everything
Starter
- · Discounts on upsell pairs
- · Endless customization
- · Live chat customer support
- · Unlimited upsell popups
- · Up to $1,000 of additional revenue
Basic
- · Discounts on upsell pairs
- · Endless customization
- · Live chat customer support
- · Unlimited upsell popups
- · Up to $5,000 of additional revenue
Growth
- · Discounts on upsell pairs
- · Endless customization
- · Live chat customer support
- · Unlimited upsell popups
- · Up to $10,000 of additional revenue
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureKaching Upsell Popup shows the right add-on when a shopper adds a product to cart. On install, the app scans your catalog and suggests matching add-ons for your products. Offer single products, product sliders, free gifts, or deals from Kaching Bundles and Kaching Subscriptions. Edit every popup in a no-code editor and track added revenue.
Stash Upsell solves a common problem: customers default to one-time purchases even when subscriptions are available. The app detects when a customer selects a one-time purchase on a subscription-enabled product page and displays a popup offering a discounted gift — exclusively for customers who switch to subscribe.
- Create a seamless popup experience without interrupting the buying journey
- Increase your AOV with various upsell and cross-sell strategies
- Boost sales offering frequently bought together products in your popups
- Incentivize customers to subscribe instead of a one-time-purchase with discount
- Customize Popup colors, text, and layout to match your store design
- Track impressions, accepts, declines, and conversions in one dashboard
- Set triggers for Popup by collection or specific product — no code needed
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 |  Kaching Discount Upsell Popup |  StashApps Subscription Upsell |
|---|---|---|
| Detected stores | 590 | Not published |
| Net store change, 28 days | −1 | 0 |
| Stores added, 28 days | 27 | Not enough data |
| Big-brand share | 14% | Not enough data |
| Top store categories | Health & Beauty, Apparel & Accessories, Home & Garden | Not published |
| Top store countries | United States, United Kingdom, Canada | Not published |
Reviews
| Measure | Kaching Discount Upsell Popup | StashApps Subscription Upsell |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 150 | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | 6% | Not enough data |
Pricing
| Measure | Kaching Discount Upsell Popup | StashApps Subscription Upsell |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $14.99/month | No monthly plan listed |
| Longest free trial | 7 days | Not listed |
| Plans listed | 4 | Not published |
Listing
| Measure | Kaching Discount Upsell Popup | StashApps Subscription Upsell |
|---|---|---|
| Shopify category rank | #12 | #1003 |
| Shopify App Charts | #3 on Pricing moves in Pop-ups | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | Oct 2, 2024 | Jan 21, 2026 |
| Languages | 1 | 1 |
| Developer | Kaching Bundles & Upsells | Stash Ventures |
FAQ
Kaching Discount Upsell Popup and StashApps Subscription Upsell: common questions
- Is Kaching Discount Upsell Popup or StashApps Subscription Upsell cheaper?
- Only Kaching Discount Upsell Popup 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?
- Kaching Discount Upsell Popup lists 10 the others don’t mention, such as Bundles, Custom rules, Drag-and-drop editor, Frequently bought together. StashApps Subscription Upsell lists 4 the others don’t mention, such as AI recommendations, Cart upsell, Funnel performance, Subscription upgrade. 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 9, 2026 for Kaching Discount Upsell Popup, Apr 21, 2026 for StashApps Subscription Upsell; 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 9, 2026 for Kaching Discount Upsell Popup, Apr 21, 2026 for StashApps Subscription Upsell. 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.