One line per release, newest first — the last 50 of them. Every tool states its own formulas, limits and sources in-page. Show the full notes →
Recently added
The newest calculators on the site. Everything below is the full release history.
v8.8 · 26 October 2026
Layout: sticky control rail and folding field notes
v8.7 · 26 October 2026
New Materials and Elements tools: Moles & Solutions and Reacting Masses & Yield
v8.6 · 26 October 2026
New Materials and Elements tool: Ideal Gas
v8.5 · 25 October 2026
New Materials and Elements tool: Acids & Bases
v8.4 · 25 October 2026
New Physics tool: Magnetism; old redirects removed
v8.3 · 25 October 2026
Address and name audit; two stale references fixed
v8.2 · 25 October 2026
New Physics tool: Specific Heat & Heat Transfer
v8.1 · 25 October 2026
Sun and Moon renamed Sun Phase and Moon Phase
v8.0 · 25 October 2026
Moon overhauled: phase diagram, sky path, month view, distance and size, eclipses and named moons
v7.9 · 25 October 2026
Sun & Moon split into Sun and Moon; the Sun overhauled
v7.8 · 24 October 2026
New tool: Lenses & Mirrors, where the image forms and why
v7.7 · 24 October 2026
New tool: Standing Waves & Superposition, waves that add and strings that sing
v7.6 · 24 October 2026
New tool: Radioactive Decay & Half-Life, atoms decaying one by one
v7.5 · 24 October 2026
Black Body and Electromagnetic Spectrum: divided and linked
v7.4 · 24 October 2026
New tool: Black Body & Colour Temperature, from a glowing poker to a blue star
v7.3 · 24 October 2026
The Wind Tunnel's shock solver runs about 1.4 times as fast
v7.2 · 24 October 2026
The Wind Tunnel gets airspeed in m/s, a wing-size control and a laminar or turbulent boundary layer
v7.1 · 24 October 2026
The Wind Tunnel gets a detail control and a finer grid close to the wing
v7.0 · 24 October 2026
The Wind Tunnel gets streamlines without lag, crisper pictures, particles and a soft start
v6.99 · 24 October 2026
The Wind Tunnel gets an airspeed control, streamlines and the boundary layer with its separation point; the slat is the right way up
v6.98 · 23 October 2026
The Wind Tunnel redrawn at full resolution: a crisp wing outline, finer smoke, no halo at the surface
v6.97 · 23 October 2026
New tool: the Wind Tunnel, a live flow simulation round a wing with slat, flap, spoiler and shock waves
v6.96 · 21 October 2026
New tool: the Pension Pot Calculator for the UK, US, Canada and Australia
v6.95 · 21 October 2026
An audit of tap targets, text size and light theme; raw entity codes in version histories fixed
v6.94 · 21 October 2026
Two more answers (latency, wildcard mask) and an SEO action plan
v6.93 · 21 October 2026
Nineteen formula and how-to-calculate answers added across ten pages
v6.92 · 21 October 2026
Twelve long-tail questions answered on TDEE, Subnet, Compound Interest, Debt Payoff and Egg Timer
v6.91 · 20 October 2026
Three fixes from looking at phone screenshots of every area
v6.90 · 20 October 2026
The Tides and Star Map pages no longer scroll sideways on a phone
v6.89 · 20 October 2026
A phone-width check of all 126 pages; one overflow fixed
v6.88 · 20 October 2026
Cards, figures and notes added to the Steak Timer and the Psychrometer; a wrong steak comparison corrected
v6.87 · 20 October 2026
Cards, figures and notes added to Compound Interest, Currency Converter and Countdown
v6.86 · 20 October 2026
Projectile Motion given cards, figures and notes mode by mode; the Moon flight time corrected
v6.85 · 20 October 2026
Cards, figures and notes added to the five remaining Mathematics tools
v6.84 · 20 October 2026
The lower half rolled out to seven more Physics tools
v6.83 · 20 October 2026
The lower half rolled out to seven more Physics tools
v6.82 · 20 October 2026
The lower half rolled out to nine Physics tools
v6.81 · 20 October 2026
The lower half rolled out to the other eight Mechanical tools, completing the area
v6.80 · 20 October 2026
The lower half rolled out to eight Mechanical tools
v6.79 · 19 October 2026
The lower half rolled out to the eight Control tools
v6.78 · 19 October 2026
The lower half rolled out to the seven Electrical tools
v6.77 · 19 October 2026
The lower half rolled out to thirteen Environmental tools
v6.76 · 19 October 2026
The lower half rolled out to eight DIY tools
v6.75 · 19 October 2026
The lower half rolled out to the seven Music and Acoustics tools
v6.74 · 19 October 2026
The lower half rolled out to the five Materials and Elements tools
v6.73 · 18 October 2026
The lower half rolled out to the twelve Computers tools
v6.72 · 18 October 2026
The lower half rolled out to nine Finance pages
v6.71 · 18 October 2026
The lower half of tool pages as a system; nine Health pages rebuilt
v6.70 · 18 October 2026
TDEE: build the activity factor from your week, Katch-McArdle
v6.69 · 18 October 2026
Currency Converter: judge a quote, work backwards, offline fallback
Earlier releases
552 more, from v6.68 · 18 October 2026 back to v0.27 and earlier —
full history