New free tools and buying guides — October 2026
New across Dixon App Studio sites: a GIF resizer, COGS, safety stock and commission calculators, roofing and gaming buying guides, and Prime Day deals.
September 29, 2026 · 4 min read

This month's additions across the Dixon App Studio sites: five free calculators and tools, eight buying guides, two income guides and two deals pages for Amazon's Prime Big Deal Days (October 6–7, 2026). The tools are free and need no signup.
Disclosure: the deals pages and buying guides below contain Amazon affiliate links. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. The calculators and image tools are free to use; some of their pages also show a few related Amazon product picks, labelled with the same disclosure.
Prime Big Deal Days: the two deals pages
Both pages list what is worth watching during the October 6–7 sale with live Amazon prices, so they stay accurate when a deal ends: roofing and DIY tool deals (nailers, ladders, safety gear, sealants, attic upgrades) and gaming deals (consoles, handhelds, controllers, headsets, storage, TVs).
Roofing and home: smartroofingcalculator.com
Fall is gutter and attic season, so the roofing site added four buying guides and a deals page for the October sale.
- Prime Day tool deals (Oct 6–7) — Roofing and DIY picks for Prime Big Deal Days: nailers, ladders, safety gear, sealants and attic upgrades, with live Amazon prices.
- Best attic insulation — Fiberglass batts vs mineral wool vs blown-in vs foam board: R-value per inch, where each one works and how deep to go.
- Best gutter sealant — Seam sealant vs butyl tape vs liquid rubber — which fixes which leak, and how to prep the seam so it holds.
- Best gutter cleaning tools — Pressure-washer wands, hose wands, leaf-blower kits, scoops and tongs: which clean from the ground and which need a ladder.
- Best extension ladder for roof work — Fiberglass vs aluminium, duty ratings, and what ladder length actually reaches your roof edge.
More about the site and its app: smartroofingcalculator.com on Dixon App Studio.
Gaming gear: justlikegames.com
Just Like Games now covers the hardware side too — what to play it on, not only what to play next.
- Prime Day gaming deals (Oct 6–7) — Consoles, handhelds, controllers, headsets, storage, TVs and retro gear for Prime Big Deal Days, with live Amazon prices.
- Best controller for PC — Xbox, DualSense, 8BitDo and hall-effect pads compared on Windows support, stick drift, back paddles and wired vs wireless.
- Best gaming TV — OLED vs Mini-LED vs budget 4K 120 Hz sets for PS5, Xbox and Switch 2: HDMI 2.1, VRR, input lag and burn-in.
- Best gaming desk — Standard, L-shaped and standing desks — how wide and deep you need for your monitors, plus arms and cable management.
- Best Switch 2 accessories — The Switch 2 add-ons worth buying: microSD Express storage, a case that fits, screen protection, a Pro Controller and charging.
More about the site and its app: justlikegames.com on Dixon App Studio.
Image tools: webpconverttojpg.com
Two new animated-GIF tools. Like the WebP converter, both run in your browser, so nothing is uploaded.
- GIF resizer — Resize an animated GIF without breaking the animation — square crops for Discord or Slack emoji, Twitch emote sizes, or any size you set.
- Compress GIF — Shrink an animated GIF with fewer colours, frames or pixels, or pick a target like 256 KB and let it fit. Runs in your browser, no upload.
More about the site and its app: webpconverttojpg.com on Dixon App Studio.
Small-business math: expressbiztools.com
Three calculators for inventory and pay questions that usually end up in a messy spreadsheet.
- Safety stock calculator — Service-level safety stock with demand and lead-time variability, plus the reorder point and the cash the buffer ties up.
- COGS calculator — Beginning inventory + purchases + freight-in − ending inventory, with gross profit, margin and FIFO vs LIFO explained.
- Sales commission calculator — Base pay, quota and accelerator tiers — see commission earned, the effective rate and what the plan costs the employer.
More about the site and its app: expressbiztools.com on Dixon App Studio.
Income targets: billorganizingapp.com/income
Two guides that start from a number and work backwards to the hours, rates and sales it takes.
- How to make $10k a month — What $10,000 a month takes in clients, sales, hours or capital, with after-tax figures and a worked 18-month plan.
- How to make $1,000 a week — The hourly rate $1,000 a week needs, what's left after taxes and costs, and three stacked weekly plans that add up.
More about the site and its app: billorganizingapp.com/income on Dixon App Studio.
New this week
Added across the studio's sites in the week of September 28: new calculators, tools and games, picked from what people search for. All free, no signup. The full list, grouped by topic, is on the free calculators & tools page.
Roofing, decks and fences
- Minimum roof pitch calculator — The lowest slope each roof covering allows under IRC R905.
- EPDM rubber roof calculator — Membrane, adhesive and seam tape for a flat roof.
- Hip rafter calculator — Hip and jack rafter lengths with side cuts.
- Deck ramp calculator — Ramp length at 1:12 with landings, checked against IRC or ADA rules.
- Picket spacing calculator — Equal gaps between pickets, with pool-code presets.
- Fence paint and stain calculator — Gallons for one or both sides of a fence.
Tile, insulation and landscaping
- Shower niche size calculator — A niche that fits the stud bay and lines up with whole tiles.
- Insulation thickness calculator — Inches of each material to reach a target R-value.
- Sod calculator — Slabs, rolls and pallets for a new lawn.
- Raised bed soil calculator — Soil and bags for any number of raised beds.
Money
- How long will my money last — Years your savings last at a given withdrawal.
- Coast FIRE calculator — When you can stop saving and let growth do the rest.
- Mortgage recast calculator — Your new payment after a lump sum, recast vs prepaying.
- How much to keep in checking — A balance that covers bills plus a buffer.
Converters, image tools and games
- Sourdough calculator — Baker's percentages and true hydration, starter included.
- VAT refund calculator — Tourist VAT refund in 22 countries, after fees.
- Shoe size converter — US, UK, EU and cm sizes, or size from foot length.
- Make background transparent — Remove a solid background in the browser, no upload.
- Nonogram — Picture logic puzzles, each solvable without guessing.
- 50 states matching game — Pair states with capitals, postal codes or nicknames.
New how-much guides on this blog, each with a worked example: drywall, tile, insulation, sod and gravel.
Everything else
The full list of apps and sites is on the All Apps page, and the free mobile apps are rounded up in Free apps from Dixon App Studio.





