Flexi — Sections vs Pent Library: Pages & Upsells
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 8, 2026 for Flexi, Nov 4, 2026 for Pent Library.
The short answer
- On the Shopify App Store: Flexi 4.9 from 18 reviews and Pent Library 5.0 from 10 reviews.
- Both list a free plan. Paid plans start at $5/month for Flexi and $20/month for Pent Library.
- Flexi lists 6 features Pent Library’s listing doesn’t mention, including Custom code, Draft pages, Lazy loading.
Head to head
- United States
- United Kingdom
- Australia
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Development Store
- · Unlimited access for development stores
Basic
- · All sections are maintained monthly
- · Compatible with Horizon & Dawn
- · For stores on a Shopify Basic plan
- · Fully customizable in the theme editor
- · Google PageSpeed optimized
- · Library of professional theme sections
Advanced
- · All sections are maintained monthly
- · Compatible with Horizon & Dawn
- · For stores on a Shopify Advanced plan
- · Fully customizable in the theme editor
- · Google PageSpeed optimized
- · Library of professional theme sections
Plus
- · All sections are maintained monthly
- · Compatible with Horizon & Dawn
- · For stores on a Shopify Plus plan
- · Fully customizable in the theme editor
- · Google PageSpeed optimized
- · Library of professional theme sections
Free
- · Branding editor
- · Library updates
- · Page template previews
- · Start with sections that fits the brand
- · Up to 2 installed sections
Full Access
- · Cart drawers & upsells
- · Page templates & branding editor
- · Priority support
- · Product add-ons & build-your-own bundles
- · Quantity discounts & gifts with purchase
- · Unlimited installed sections
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureI built Flexi because I was tired of rebuilding the same sections for every client project. Other libraries fell short. They were either too slow, too branded, or too much junk in the theme. So I built the one I actually needed. Sections and blocks that connect to metafields from day one, dev mode for full control, and a tiny footprint that passes PageSpeed every time. Three years. Five versions.
Build a storefront that feels like your brand. Browse theme sections and page templates, then customize colors and fonts. Add product recommendations, build-your-own bundles, quantity discounts, gifts with purchase and cart upsells. Preview layouts before installing and finish setup in Shopify’s theme editor. Templates use your section allowance; home pages use guided setup. Selling tools require Grow or Full Access.
- Professionally built theme library optimized for speed
- Use a theme customizer you're already familiar with
- Upgrade your existing theme with a library of theme sections, and blocks
- One click install an entire library of useful sections, and blocks (no code)
- Boost conversions with sections inspired by top-performing stores
- Fully customizable to fit your brand
- Explore new components added each month to enhance design and functionality
- Build faster and better with our library of pre-built theme sections
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 |  Flexi |  Pent Library |
|---|---|---|
| Detected stores | 195 | Not published |
| Net store change, 28 days | +22 | 0 |
| Stores added, 28 days | 27 | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Apparel & Accessories, Health & Beauty, Home & Garden | Not published |
| Top store countries | United States, United Kingdom, Australia | Not published |
Reviews
| Measure | Flexi | Pent Library |
|---|---|---|
| App Store rating | 4.9 ★ | 5.0 ★(ahead) |
| App Store reviews | 18(ahead) | 10 |
| New reviews, 28 days | 0 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Flexi | Pent Library |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $5/month(ahead) | $20/month |
| Longest free trial | 14 days | 7 days |
| Plans listed | 4 | 2 |
Listing
| Measure | Flexi | Pent Library |
|---|---|---|
| Shopify category rank | #92 | #80(ahead) |
| Shopify App Charts | #24 in Page builder | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | Jan 25, 2023 | Jan 10, 2025 |
| Languages | 1 | 1 |
| Developer | Brandon Landgraff | Pent |
FAQ
Flexi and Pent Library: common questions
- Is Flexi or Pent Library cheaper?
- Both list a free plan. Paid plans start at $5/month for Flexi and $20/month for Pent Library. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, Flexi or Pent Library?
- On the Shopify App Store: Flexi 4.9 from 18 reviews and Pent Library 5.0 from 10 reviews.
- What features does each app list that the other doesn’t?
- Flexi lists 6 the others don’t mention, such as Custom code, Draft pages, Lazy loading, Localization. Pent Library lists 3 the others don’t mention, such as Bulk editing, Custom fonts, Elements. 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 for Flexi, Nov 4, 2026 for Pent Library; 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 for Flexi, Nov 4, 2026 for Pent Library. 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.