Cartkept File Upload vs File Upload by PartyKit
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 4, 2026 for Cartkept File Upload, Oct 13, 2026 for File Upload by PartyKit.
The short answer
- Only File Upload by PartyKit lists a free plan.
- File Upload by PartyKit lists 5 features Cartkept File Upload’s listing doesn’t mention, including Custom fields, Custom rules, Image crop.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
- · 50 customer uploads per month
- · AI moderation (NSFWJS) included
- · Files in Shopify Files (default)
- · Storefront block, no theme edits
Starter
- · 500 customer uploads per month
- · Hold-for-review queue
- · In-browser cropper with aspect lock
- · Photo guidelines per product
Pro
- · 2,500 customer uploads per month
- · PDF preview built in
- · Per-file fees via cart_transform
- · Per-variant aspect overrides
Studio
- · BYO S3 / R2 / Drive / Dropbox
- · Priority email support
- · Sidecar JSON for AI workflows
- · Unlimited customer uploads
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureFor stores that make products from a customer's own file: prints, photo gifts, signs, engraving. The upload box shows the file types and size limit we really enforce, so no shopper is told one limit and refused at another. The file name goes on the order line; the file stays in private storage until the day you choose.
Let your customers attach photos, designs, SVGs and PDFs directly to any product on its page — no email back-and-forth, no checkout extensions. Built for UV printers, hat-bar parties, sublimation shops, designers, and any creative store where the customer brings the artwork.
- Upload box on your product page: JPG, PNG, WEBP, HEIC or PDF, up to 25 MB
- The size limit shoppers read is exactly the limit the upload enforces
- The file name goes on the order line; download the file in the app
- One email when uploads break, one when fixed; weekly summary email
- Customers upload art straight from the PDP — no emails, no send your file later
- AI blocks NSFW + low-res images before you waste ink. Hold-for-review queue.
- Per-file fees applied at checkout via Shopify Functions — no manual invoices.
- BYO storage: Shopify Files, AWS S3, Cloudflare R2, Google Drive, or Dropbox.
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 |  File Upload by PartyKit | |
|---|---|---|
| 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 | File Upload by PartyKit | |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 2 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | File Upload by PartyKit | |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | No monthly plan listed | $9/month |
| Longest free trial | Not listed | 14 days |
| Plans listed | Not published | 4 |
Listing
| Measure | File Upload by PartyKit | |
|---|---|---|
| Shopify category rank | Not enough data | #66 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Nov 4, 2026 | May 29, 2026 |
| Languages | 1 | 1 |
| Developer | Cartkept | Tumbly Haus Creative |
FAQ
Cartkept File Upload and File Upload by PartyKit: common questions
- Is Cartkept File Upload or File Upload by PartyKit cheaper?
- Only File Upload by PartyKit 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?
- Cartkept File Upload lists 1 the others don’t mention, such as File download. File Upload by PartyKit lists 5 the others don’t mention, such as Custom fields, Custom rules, Image crop, Images. 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 4, 2026 for Cartkept File Upload, Oct 13, 2026 for File Upload by PartyKit; 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 4, 2026 for Cartkept File Upload, Oct 13, 2026 for File Upload by PartyKit. 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.