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All five iOS engineering kits are $1 each — no end date, no upsell. You can buy any of them directly on Gumroad:

iOS Performance Audit Checklist — $1 — PDF (18 pages) + Markdown · Buy on Gumroad
SPM Modularization Starter Kit — $1 — Swift package + Markdown guide (ZIP) · Buy on Gumroad
App Store Release Checklist — $1 — PDF (12 pages) + Markdown · Buy on Gumroad
iOS Design Starter Kit — $1 — Swift package + design assets (ZIP) · Buy on Gumroad
CocoaPods to SPM Migration Kit — $1 — PDF (9 pages) · Buy on Gumroad

7-day refund if the files don't match the description — email superapp.devin@gmail.com.

Checklist PDF + Markdown

iOS Performance Audit Checklist

Find the launch, memory, scrolling, and package-size problems users feel first.

A repeatable audit for the performance issues that escape happy-path testing.

Format PDF + Markdown

Files 2 files

Version 1.0

Updated Oct 2026

Works with Xcode

Delivery Instant download or email

WHAT'S INSIDE

WHO IT'S FOR

iOS engineers, QA partners, and tech leads who need a shared definition of fast.

BUY THE KIT

$1

Single-item checkout runs on Gumroad as devinspire734.

One-time purchase · instant download or email delivery

Email order · invoice via PayPal or bank transfer

Single item → Buy now on Gumroad (secure checkout, instant download)
Multiple items or invoice needed → Email order; we reply within 24 hours with an invoice (PayPal or bank transfer)
7-day refund if the files don't match the description
Support by email
Own the files, no subscription
No account needed

Questions before buying? superapp.devin@gmail.com