Sky Pilot ‑ Digital Downloads vs Stampfox ‑ Sell PDFs
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 Sky Pilot, Oct 22, 2026 for Stampfox.
The short answer
- Both list a free plan. Paid plans start at $9/month for Sky Pilot and $5/month for Stampfox.
- Sky Pilot lists 11 features Stampfox’s listing doesn’t mention, including Analytics, Audio, Bulk upload.
Head to head
- United States
- Australia
- United Kingdom
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free Plan
- · 100MB files Storage
- · 1GB monthly bandwidth
- · Direct email delivery
- · Unlimited digital orders
- · Unlimited digital products
Starter Plan
- · 10GB files Storage
- · 15GB monthly bandwidth
- · Download page customization
- · Email customisation
- · Shopify Order fulfillment
- · Unlimited digital orders
Lite Plan
- · 20GB files Storage
- · 50GB monthly bandwidth
- · Data Export
- · Order Email Delivery Delay
- · Scheduled File Releases
- · Unlimited digital orders
Growth Plan
- · 200GB monthly bandwidth
- · AI file recommender
- · PDF stamping
- · Subscription integration
- · Unlimited digital orders & license keys
- · Unlimited digital products
Free
- · 1 document
- · 2 MB max file size
- · 20 orders/month
- · Stampfox branding on download page
- · Unlimited downloads per order
Starter
- · 1 document
- · 1 text stamp and 1 image stamp component
- · 10 MB max file size
- · Access downloads in checkout
- · Download page on your store
- · Download tracking
Growth
- · 10 documents
- · 40 MB max file size
- · Everything in Starter
- · Priority support
- · Unlimited orders & downloads
- · Unlimited stamp components
Business
- · 100 documents
- · 60 MB max file size
- · Everything in Growth
- · Multiple language support
- · Priority support
- · Unlimited orders & downloads
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureSell digital downloads on Skypilot: ebook and PDF files, audio, courses, memberships, links and license keys. Each digital download arrives instantly on a branded download page, by email and in the customer account. Stream video instead of sending large files. Protect every digital product with PDF stamping, video stamping, download limits, timed access and login.
Stampfox helps Shopify merchants sell personalized and protected PDF downloads. Upload your PDF, create a stamp template with customer and order details like name, email, and order number. After purchase, customers get instant access to a personalized stamped copy.
- Engage customers with direct digital content delivery in your store.
- Sell digital products on a subscription and through your own native app.
- Offer high-quality streaming and/or downloads and organize files into folders.
- Digital downloads match your store's branding across email and store delivery.
- Sell PDFs and deliver stamped, watermarked copies automatically after checkout
- Stamp PDFs with custom templates using text, images, and order data
- Protect PDFs. Customers never receive the original, only the stamped version
- Personalize PDFs with buyer name, email, and order details on every download
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 |  Sky Pilot |  Stampfox |
|---|---|---|
| Detected stores | 429 | Not published |
| Net store change, 28 days | −3 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | 24% | Not enough data |
| Top store categories | Arts & Entertainment, Media, Apparel & Accessories | Not published |
| Top store countries | United States, Australia, United Kingdom | Not published |
Reviews
| Measure | Sky Pilot | Stampfox |
|---|---|---|
| App Store rating | 4.9 ★ | Not published |
| App Store reviews | 440 | Not published |
| New reviews, 28 days | 18 | Not enough data |
| Reviewers a year or more in | 42% | Not enough data |
FAQ
Sky Pilot and Stampfox: common questions
- Is Sky Pilot or Stampfox cheaper?
- Both list a free plan. Paid plans start at $9/month for Sky Pilot and $5/month for Stampfox. 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?
- Sky Pilot lists 11 the others don’t mention, such as Analytics, Audio, Bulk upload, Courses. Stampfox lists 4 the others don’t mention, such as Access code, Custom download pages, Externally hosted, File hosting. 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 Sky Pilot, Oct 22, 2026 for Stampfox; 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 Sky Pilot, Oct 22, 2026 for Stampfox. 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.