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DIGITAL KITS FOR iOS TEAMS

Ship iOS with
fewer surprises.

Five practical iOS engineering kits — a 60-check performance audit, an SPM modularization starter, a 40-point App Store release checklist, a CocoaPods to SPM migration kit, and a SwiftUI design starter — built from 13 years of production iOS work.

$1 each · 5 iOS kits · one-time purchase

Every kit is $1. No end date, no upsell. No subscription, no follow-on charge.

Free 10-check sample · no payment, email required

Free: App Store Rejection Response Kit · 6-page PDF, email required

Get the kits — $1 each Why these exist
  • 13 years of iOS experience
  • Instant download on Gumroad
  • Direct email support
THE SHIPPING STACK READY TO USE
01
Measure Find what slows the build down
60 checks
02
Structure Give features clean boundaries
Multi-target
03
Submit Give App Review less to question
40 checks
MEASURE → STRUCTURE → SUBMIT View the kits

45-SECOND OVERVIEW

Watch what you get
before you buy.

45 seconds shows how the five kits fit together — browse the kits and pick your bottleneck

PLANNED RELEASE · ALL FIVE KITS IN ONE ZIP

iOS Launch Pack — all five kits

Coming soon — browse the individual kits in the meantime

Measure, structure, submit, and style: every kit in the store, bundled for one download.

  • iOS Performance Audit Checklist — 60-check PDF
  • SPM Modularization Starter Kit — buildable Swift package
  • App Store Release Checklist — 40-check PDF
  • CocoaPods to SPM Migration Kit — 9-page migration checklist
  • iOS Design Starter Kit — icons, design tokens, Swift package

Icons ship with ATTRIBUTION.md — keep it with the files when you redistribute them.

Pricing when it ships:$1 eachall five kits, one download

Browse the individual kits →

Available soon — the individual kits are live today

01

13 years in iOSBuilt from production releases.

02

Instant download on GumroadInvoiced orders get the download link by email within 24 hours.

03

Email supportsuperapp.devin@gmail.com

THE TOOLKIT

Pick the bottleneck
you're fixing.

Start with one kit or stack all five. Buy once: single kits check out on Gumroad and download instantly, multi-kit orders are invoiced by email.

Why $1: every kit is $1 — no end date, no upsell, no follow-on charge. There is no higher "regular" price waiting to replace it. If a kit doesn't match this page, email within 7 days and I refund it.

01 Checklist

iOS Performance Audit Checklist

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

  • SolvesLate-stage launch, memory, scrolling, and app-size regressions that happy-path testing misses.
  • You get2 files · PDF 18 pages (A4) + editable Markdown
  • Best foriOS engineers, QA partners, and tech leads who need a shared definition of fast.
$1
Details

or buy now on Gumroad — $1

Try 10 free checks

02 Template + guide

SPM Modularization Starter Kit

Turn one app target into a modular Swift package without slowing the team down.

  • SolvesAn app target that has become the default home for every new file.
  • You get1 ZIP · 13 files — four Swift targets, README, layering guide, CI script
  • Best foriOS teams moving an existing app target into modules without slowing delivery.
$1
Details

or buy now on Gumroad — $1

03 Checklist

App Store Release Checklist

A calm, 40-point pass through everything App Review checks before you hit Submit.

  • SolvesApp Review rejections and missing pre-submit checks found after the build is already uploaded.
  • You get2 files · PDF 12 pages (A4) + editable Markdown
  • Best forRelease owners and engineers who want one calm pass before submission.
$1
Details

or buy now on Gumroad — $1

04 Design kit

iOS Design Starter Kit

Start a consistent SwiftUI surface with 160 icons, four checked palettes, and fixtures that decode.

  • SolvesInconsistent icons, colours, and sample data every time a new SwiftUI surface starts.
  • You get1 ZIP · Swift package (3 libraries + tests), 160 PDF icons, 160 SVGs, 4 themes
  • Best forSwiftUI developers who want a coherent starting point for icons, colour, and sample data.
$1
Details

or buy now on Gumroad — $1

05 Checklist

CocoaPods to SPM Migration Kit

Move a 20+ dependency iOS project from CocoaPods to Swift Package Manager without freezing delivery.

  • SolvesA large CocoaPods setup that everyone wants to migrate but nobody wants to break.
  • You get1 file · PDF 9 pages (A4)
  • Best foriOS teams with 20+ CocoaPods dependencies planning a migration without stopping feature work.
$1
Details

or buy now on Gumroad — $1

One-time purchase · Digital delivery · Prices in USD

How ordering works

Two ways to order.

No account needed, no subscription. You pay once and keep the files. Single items check out instantly on Gumroad; multi-item orders are invoiced by email and get a download link within 24 hours.

  1. 01

    Single item → Buy now on Gumroad (secure checkout, instant download)

  2. 02

    Multiple items or invoice needed → Email order; we reply within 24 hours with an invoice (PayPal or bank transfer)

BUILT FROM PRACTICE

Made for the part
after the demo.

Devin is a small collection of working documents shaped by 13 years of building and shipping iOS apps. The goal is simple: fewer late-stage surprises, clearer reviews, and a release your team can repeat.

Public profile and site source: github.com/hhfa008

13 years in iOS

Every kit is shaped by 13 years of building and shipping iOS apps.

Delivery that matches the order

Instant download on Gumroad · email delivery for invoiced orders

7-day refund

If the files don't match the description, ask within 7 days and we refund the purchase.

Support by email

Questions reach the person who made the kit: superapp.devin@gmail.com.