One file · No account · Works offline

Digital tools that keep your data on your computer.

Every SpectrTech product is a single HTML file. Double-click it, and it runs on Windows, macOS or Linux, in Chrome, Edge, Safari or Firefox. No login, no subscription, no server.

Try the live demo See our planners
Wedding Planner seating plan with guests placed on chairs around round tables
Seating plan with Auto Arrange, from the Wedding Planner

Works offline

Turn Wi-Fi off and everything still works. Your data lives in your browser, not on a server.

One-time purchase

Buy once, use as long as you like. No monthly fees, no account to lose.

Private by design

Nothing is uploaded. There is no server to upload to. Back up the whole plan to one file.

Multilingual

Interfaces in 9 languages, including right-to-left Arabic, Hindi and Chinese.

Our planners

One file each. Buy once, keep forever.

Wedding Planner dashboard with the main planning numbers

Wedding Planner

$24.99 one-time, no subscription
  • 17 connected sections: guest list, seating plan with Auto Arrange, floor plan, budget, vendors, payments, timeline, invitations and more
  • Guest list feeds the seating chart and invitations; choosing a vendor fills the budget and payment schedule
  • Import guests from Excel / CSV; export invitations as PDF or ZIP
  • 9 languages · any currency · 5 colour themes · one-click backup
Get it on Gumroad Details
Moving Planner with printable QR box labels

Moving Planner

$29 one-time, no subscription
  • QR box labels: point any phone camera at a box and the full contents list appears, no app needed
  • Box inventory with rooms, photos and flags (Fragile, Open first), plus search across every box
  • 8-week moving checklist, address-change checklist and moving budget
  • Realtor mode: a branded copy for every client · 9 languages · works offline
Get it on Gumroad Details

Our games

Simple, offline-friendly games for your phone.

Coin Drop Tycoon, an idle plinko and merge game for Android

Coin Drop Tycoon

Free Android · closed test, coming to Google Play
  • Drop coins through pegs, merge equal numbers and multiply your cash
  • Splitter, golden and gem pegs; new boards with up to 11 pegs on every stage
  • Gold Shop upgrades, daily quests, 7-day rewards, achievements and coin skins
  • No sign-up, progress saved on your phone, plays without internet
See the game Join the closed test

Free planning tools

All free tools →
ToolBudget calculatorTypical split by category, then replace guesses with real quotes. CSV export. ToolSeating chart makerPaste the guest list, drag names onto seats, print. ToolPlanning checklist12 months to the day. Tick, save, print. ToolMoving checklist8 weeks to moving day, in order. Tick, print or save as PDF. ToolMoving box calculatorHow many boxes, tape and labels your move needs.

Free printable PDF checklist →

Wedding planning guides

All guides →
GuideChecklist, month by month12 months to the day: the decisions that block other decisions, in order. GuideSeating chart without redoing itTag the list first, place groups before people, handle the hard cases. GuideA budget that doesn’t go overEstimated, quoted, final, and category limits that warn early.

Moving guides

All guides →
GuideHow to label moving boxesNumbers, room colours and QR codes, so you can find anything after the move. GuideMoving checklist, 8 weeks outWhat to do at 8, 4, 2 and 1 week before moving day, in the order it blocks. For agentsA closing gift clients useA branded moving planner with your name on every box label.
Affiliate program

Recommend our planners. Keep 50%.

Bloggers, planners, realtors and creators earn $12.49 on every Wedding Planner and $14.50 on every Moving Planner they refer. Gumroad handles tracking and payouts.

Become an affiliate →