SendOwl vs Start21 Ebook Delivery
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 7, 2026 for SendOwl, Nov 6, 2026 for Start21 Ebook Delivery.
The short answer
- Only Start21 Ebook Delivery lists a free plan. Paid plans start at $39/month for SendOwl and $9.99/month for Start21 Ebook Delivery.
- SendOwl lists 19 features Start21 Ebook Delivery’s listing doesn’t mention, including Access code, Amazon S3 storage, Analytics.
Head to head
- United States
- Canada
- United Kingdom
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Launch
- · 7 day free trial
- · All features
- · Unlimited products and storage
- · up to 10,000 USD sales per year
- · up to 5,000 orders per year
Grow
- · 7 day free trial
- · All features
- · Unlimited storage and products
- · up to 25,000 orders per year
- · up to 36,000 USD sales per year
Scale
- · + Priority Support
- · 7 day free trial
- · All features
- · Need higher limits? support@sendowl.com
- · Unlimited storage and products
- · up to 100,000 USD sales per year
Free
Starter
Unlimited
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureSendOwl helps you launch fast and sell with confidence. Go from idea to sale in under a minute, with powerful tools to protect your work: PDF stamping, password locking, expiring links, and download controls. Every plan includes all features, unlimited products and storage, and no limits on orders or revenue. Built to scale as you grow.
Built for authors and small publishers selling direct. Attach EPUB, PDF, MOBI, AZW3, ZIP or MP3 files to any product or variant. When an order is paid, the ebook items are fulfilled automatically with a download link, so Shopify emails the buyer from your own store and shows the link on their order page.
- Deliver any file you can upload or link you can copy/paste as a digital product.
- Secure delivery. PDF stamping, time-limited download links, and more.
- Access reports about order information, delivery data, income and more.
- Automate your marketing workflows with nifty tools to help you sell better
- Delivered at checkout: ebook items are fulfilled with a download link
- A library that never expires, with reading tips for Kindle, Apple Books and Kobo
- Made for authors: print+ebook variants, series bundles, refunds revoke access
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 |  SendOwl | |
|---|---|---|
| Detected stores | 24 | 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 | Arts & Entertainment, Media, Health & Beauty | Not published |
| Top store countries | United States, Canada, United Kingdom | Not published |
Reviews
| Measure | SendOwl | |
|---|---|---|
| App Store rating | 3.3 ★ | Not published |
| App Store reviews | 91 | Not published |
| New reviews, 28 days | 1 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | SendOwl | |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | $39/month | $9.99/month(ahead) |
| Longest free trial | 7 days | 7 days |
| Plans listed | 3 | 3 |
Listing
| Measure | SendOwl | |
|---|---|---|
| Shopify category rank | #58 | Not enough data |
| Shopify App Charts | #6 on Featured by Shopify in Digital products | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jun 29, 2012 | Nov 6, 2026 |
| Languages | 1 | 1 |
| Developer | SendOwl | Oak Glen |
FAQ
SendOwl and Start21 Ebook Delivery: common questions
- Is SendOwl or Start21 Ebook Delivery cheaper?
- Only Start21 Ebook Delivery lists a free plan. Paid plans start at $39/month for SendOwl and $9.99/month for Start21 Ebook Delivery. 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?
- SendOwl lists 19 the others don’t mention, such as Access code, Amazon S3 storage, Analytics, Bulk upload. 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 7, 2026 for SendOwl, Nov 6, 2026 for Start21 Ebook Delivery; 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 7, 2026 for SendOwl, Nov 6, 2026 for Start21 Ebook Delivery. 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.