Fast Conversion Bar vs Selling Fast
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for Fast Conversion Bar, Feb 19, 2026 for Selling Fast.
The short answer
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureFast Conversion Bar is a fully customizable promotional top bar that displays the satisfaction of your existing customers as a form of social proof. This powerful tool effortlessly instills confidence in potential buyers, boosting their willingness to purchase. Easy to tailor to match your store's unique design, Fast Conversion Bar is a simple yet effective way to leverage the power of satisfied customers.
- Show how many happy customers you have or build your own conversion booster!
- Social proof will immediately boost your conversion rate!
- Predefined, custom color options, many fonts and custom CSS option.
- Simple and effective social proofing
- Easy to use
- No coding required
- Wide variety of customization 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 |  Fast Conversion Bar |  Selling Fast |
|---|---|---|
| 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 | Fast Conversion Bar | Selling Fast |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 5 | Not published |
| New reviews, 28 days | 1 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Fast Conversion Bar | Selling Fast |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | No monthly plan listed |
| Longest free trial | Not listed | Not listed |
| Plans listed | Not published | Not published |
Listing
| Measure | Fast Conversion Bar | Selling Fast |
|---|---|---|
| Shopify category rank | #188 | #226 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jan 9, 2019 | Jul 7, 2021 |
| Languages | 1 | Not published |
| Developer | COMCODE | Codfee |
FAQ
Fast Conversion Bar and Selling Fast: common questions
- 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 13, 2026 for Fast Conversion Bar, Feb 19, 2026 for Selling Fast; 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 13, 2026 for Fast Conversion Bar, Feb 19, 2026 for Selling Fast. 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.