Pricing27 toolsNo subscriptions
Everything works before you pay
The core question each tool answers is always free — no trial, no credit card, no sign-up. Pro exists for the paperwork that follows: reports, batch runs and saved scenarios. It is a one-time unlock, never a renewal.
27 tools8 with no Pro tierPro one-time, priced per toolNo renewals
The result is never behind the paywall
Pro buys exports, batch operations and scenario saving — never the answer itself. If a number is on the page, it is yours for free.
One labelled ad slot, below the results
Ads are served by Google and marked “Advertisement”, sit under your answer, and never interrupt an input. No interstitials, no autoplay. The file tools carry no ad slot at all — a banner next to your passport scan is the wrong trade.
Your data is not the product
There is no server to sell from. What you type stays in the tab, files are processed in the tab, and saved scenarios live in this browser's storage where they can be wiped in one click. Ads and payments do involve third parties — they are named on the privacy page.
Where the money sits, tool by tool
Model chosen from competitor pricing and the reviews that explain why people resent it. The table covers the 25 tools with a chosen model; the remaining file tools — bank statement PDF to CSV and dark slide inversion — are completely free and carry no ad slot. The 8 tools with no Pro tier are a different set from the six file tools that carry no ad slot.
| Tool | Model | Pro | What Pro actually adds |
|---|---|---|---|
| Schengen 90/180 Rolling Stay Calculator 100% EU-aligned rolling 180-day visual timeline with auto-saved trip history, aging-out dates, and future stay sandbox. | Free + travel affiliate + one-time Pro | $9 once | Border-ready PDF & CSV compliance report export for EES checks · Multi-traveler & family passport profile switcher in browser · Side-by-side multi-scenario future itinerary comparison |
| Mortgage Overpayment & Payoff Calculator All-in-one UK/AU/US calculator modeling multi-lump-sum timelines, 10% ERC penalty caps, offset accounts, and LTV drops. | Free + mortgage affiliate + one-time Pro | $12 once | Irregular multi-lump-sum timeline & LTV remortgage tier simulator · Tiered Early Repayment Charge (ERC) net savings deduction engine · Offset account vs. after-tax savings comparison & PDF/CSV export |
| Local Browser Batch HEIC to JPG Converter 100% browser-local WebAssembly HEIC batch converter with unlimited files, EXIF GPS privacy stripper, and ZIP download. | Free + ads + one-time Local Pro | $12.99 once | Custom batch renaming templates using EXIF capture date and sequence · Bulk max-dimension resizing, aspect fitting & watermark stamping · Saved local workflow presets and ad-free workspace mode |
| UK/AU Stamp Duty Property Tax Calculator Side-by-side UK SDLT, LBTT & LTT calculator with £500k FTB cliff-edge alerts, stacked surcharges, and refund timeline. | Free + broker affiliate + one-time Pro | £4.99 once | £500k FTB cliff-edge bidding & chattels deduction simulator · Buy-before-sell 36-month surcharge refund cashflow timeline · Multi-property linked transactions & solicitor-ready PDF report |
| Sewing PDF Pattern Stitcher & Projector Tool Client-side A0/Letter bi-directional stitcher & tiler, permanent OCG size-layer baker, and 4-point projector calibration. | Free + one-time Pro | $19 once | Permanent single-size OCG layer isolation & flattened A0 PDF export · A0-to-Letter/A4 home print tiler with assembly map & 1-inch test square · Multi-projector & cutting-table calibration preset JSON backup/restore |
| Coast FIRE & Retirement Pension Calculator No-signup Coast FIRE planner with US/UK/AU locked pension buckets, P0 spending guardrails, and Web Worker Monte Carlo. | Free + one-time Pro | $19 once | 1,000-run Web Worker Monte Carlo & stagflation stress testing · Full US (401k/Roth), UK (SIPP/ISA) & AU (Super) bridge optimizer · Asynchronous couple retirement timelines & P0 spending floor guardrails · Multi-scenario comparison table & printable PDF/CSV roadmap export |
| Client-Side PDF Redaction & Sanitizer Tool 100% offline-capable true PDF sanitization that destroys underlying text/OCR streams with a built-in Paste-Check verifier. | Free + one-time Local Pro | $19 once | Multi-file batch redaction pipeline entirely in browser memory · Auto-sweep regex scanner for SSNs, emails, phones & account numbers · Selective vector sanitization keeping unredacted text sharp · Exportable local Redaction Audit Certificate for compliance records |
| Baker's Percentage & Pizza Dough Calculator Two-stage Poolish/Biga/Sourdough auto-deduction calculator with dual-temp yeast curve, honey/multi-flour slots, and waste buffer. | Free + baking gear affiliate & light ads | Free | Commercial pizzeria batch food-cost & margin per dough ball calculator · Printable kitchen prep schedule & laminated PDF recipe card export · Unlimited local recipe library with JSON backup and URL sharing |
| Browser Booklet Imposition Layout Tool Browser-local PDF booklet imposer with unlimited pages, A4/A3/Letter/Tabloid support, 3D fold preview, and duplex split. | Free + one-time Pro | $14.99 once | Multi-signature bookbinding mode with custom sheets per signature · Paper thickness creep (shingling) millimeter shift compensation · Printer crop marks, center fold lines, bleed & custom trim presets |
| Tax Residency & FEIE 330-Day Tracker Zero-signup tracker uniting sliding 365-day FEIE optimization, IRS 24h transit rules, US SPT, and multi-country 183-day caps. | Free + expat tax affiliate + one-time Pro | $9 once | Audit-ready Form 2555 & multi-country PDF/CSV report with flight refs · Non-calendar fiscal year templates (UK Apr 6–Apr 5, AU Jul 1–Jun 30) · Multi-scenario future travel what-if sandbox comparisons in browser |
| Baking Pan Size & Recipe Scaling Converter 3D pan volume & area scaler with fill-level overflow alerts, bake temp/time adjustments, and instant gram conversion. | Free + one-time Pro + Affiliate | $9.99 once | Multi-pan batch splitting with leftover cupcake yield calculator · Recipe ingredient cost & per-slice pricing calculator · Custom pan library in localStorage & watermark-free PDF recipe card |
| Travel Nurse GSA Per Diem Pay Calculator 100% agency-free calculator with IRS tax-home compliance checks, true OT math, and side-by-side net pay after housing. | Free + one-time Pro + Independent Affiliate | $9 once | Printable 13-week net pay & bill-rate negotiation PDF report · Local 24-month rolling state day tracker for IRS 12-month rule · Low-census shift cancellation & stipend clawback stress tester |
| IVF FET Due Date & Milestone Calculator Transparent Day 3/5/6/7 FET & fresh transfer formula breakdown with corrected LMP, live XwYd + dpdt, and twin windows. | Free + one-time Printable Pack + Affiliate | $3.99 once | High-res printable IVF milestone keepsake cards & PDF journal pages · Customizable clinic graduation & milestone .ics calendar export · Printable RE-to-OB dating reconciliation summary sheet |
| Mini-Split Heat Pump BTU Sizing Calculator Manual-J-lite room load calculator that flags oversizing, checks multi-zone minimum BTU modulation, and skips lead-gen. | Free + Affiliate & Ads + one-time Pro | $9 once | Multi-scenario 1:1 single-zone vs multi-zone 10-year cost comparison · Printable contractor quote audit PDF with room-by-room load breakdown · Local save & shareable read-only URL for whole-home HVAC layouts |
| Gallery Wall & Photo Frame Layout Planner Solves exact nail-hole (X,Y) coordinates for dual D-rings and taut picture wire with 57-inch anchoring and 1:1 printouts. | Free + one-time Pro Blueprint + Affiliate | $3.99 once | 1:1 scale tiled A4/Letter printable drill-target templates · Room photo background upload with perspective calibration export · Multi-layout side-by-side comparison booklet in PDF · Watermark-free CAD/SVG contractor hanging specification sheet |
| Knitting Gauge Swatch & Stitch Converter Separates stitch & row gauge math, aligns pattern multiples, writes flat/round M1 intervals, and matches sweater sizes. | Free + one-time Pro | $4.99 once | Multi-part sweater (back, front, sleeves) recalculated PDF pattern · Interactive row-by-row shaping & raglan/sleeve taper checklist · Unlimited local swatch archive with yarn & blocking shrink ratios |
| Australia Visa 8558 Stay Calculator Day-by-day 18-month rolling window simulator with roll-off heatmap, max safe exit date, and earliest return date solver. | Free + Affiliate & Ads + one-time Pro | $4.99 once | Bilingual (EN/ZH) printable parent compliance itinerary PDF · Local multi-parent profile manager (Father/Mother separate trips) · One-click .ics calendar export for latest legal departure alerts |
| German Tax Class & Elterngeld Optimizer Unifies 3/5 vs 4/4 net gain after Progressionsvorbehalt clawback, 7-month switch deadline, and 175k EUR zvE check. | Free + one-time Pro + Affiliate | €9 once | Bilingual DE/EN personalized timeline & ELSTER step-by-step PDF · Month-by-month cashflow & Nachzahlung tax reserve buffer planner · § 2b BEEG late-switch month exclusion simulator & rescue report |
| Australia MLS vs Private Health Calculator Full-income MLS cliff calculator with ISP add-backs, 31+ LHC loading, pro-rata days, and exact PHI break-even premium. | Free + Affiliate & Ads | Free | 10-year cumulative cost chart: buy PHI now vs delay with LHC loading · Hospital vs Extras & excess limit ($750/$1,500) compliance checker · Printable EOFY MLS vs Private Health Insurance tax summary sheet |
| Gravel Driveway Volume & Tonnage Calculator Neutral 3-layer driveway builder (#3, Crusher Run, #57) with compaction loss, short/metric tons, and dump truck loads. | Free + Affiliate & Ads | Free | Neutral printable quarry phone-order sheet with stone grades & fabric · Marble-effect rutting warning when #57 clean stone exceeds 2.5 inches · Multi-section driveway & parking pad local project cost estimator |
| No Tax on Tips & Overtime Calculator (OBBBA) The only tips/overtime estimator that models the premium-half rule, the joint $25k OT cap and the 10%-per-$1k MAGI phaseout in one screen — constants straight from IRS Schedule 1-A instructions. | Free + tax-season ads | Free | Nothing — the whole tool is free. |
| State PFML Benefit Calculator (13 States + DC) All 13 state PFML programs + DC with each 2026 tiered formula, SAWW band and weekly cap — including the new Minnesota, Maine and Delaware launches most calculators missed. | Free + employment/family ads | Free | Nothing — the whole tool is free. |
| BYOB Wedding Alcohol & Ice Calculator Vendor-standard consumption math (session-length drinks per guest, 50/35/15 splits) plus the return-policy buffer that beverage calculators skip. | Free + wedding affiliate + one-time Pro | $9 once | Printable shopping list with store-ready quantities & substitutions · Signature-cocktail batch scaling with ABV-based consumption taper · Multi-event series (rehearsal + wedding + brunch) combined buying plan |
| River Table Epoxy Volume & Pigment Calculator Multi-point width averaging for tapering slabs, seal-coat volume, mixing loss and the 2-inch layer limit that prevents exotherm cracks — the four things single-box calculators miss. | Free + epoxy kit affiliate | Free | Nothing — the whole tool is free. |
| Stair Stringer & Railing Calculator with SVG Cutting Diagram Finished-floor rise input and automatic tread-drop on the bottom riser — the two omissions behind nearly every 'first step trips me' staircase — plus a printable to-scale cutting diagram. | Free + tools affiliate + one-time Pro | $7 once | Full-size printable cutting template PDF per stringer · Landing platform & 90° turn configurations · Material shopping list across stringers, treads, railings & fasteners |
Free tier, in writing
These are not trials. They do not expire, and they do not ask for an email.
Schengen 90/180 Rolling Stay Calculator$9 once once
Unlimited trip entries auto-saved in browser localStorage
Open tool →Mortgage Overpayment & Payoff Calculator$12 once once
Monthly & single lump-sum interest savings and payoff date forecast
Open tool →Local Browser Batch HEIC to JPG Converter$12.99 once once
Unlimited local batch HEIC to JPG/PNG/WebP conversion without upload
Open tool →UK/AU Stamp Duty Property Tax Calculator£4.99 once once
Slice-by-slice SDLT (England/NI), LBTT (Scotland) & LTT (Wales) math
Open tool →Sewing PDF Pattern Stitcher & Projector Tool$19 once once
Fullscreen 4-corner homography projector grid calibration canvas
Open tool →Coast FIRE & Retirement Pension Calculator$19 once once
Real return (r_real) Coast FIRE target & net worth growth curve
Open tool →Payments are handled by Creem as merchant of record, which also works out and remits VAT and sales tax where it applies. An unlock is tied to the browser that completed the purchase — there is no account to sign into, so keep the receipt email if you ever need it restored. Prices are one-time and do not renew.