We check every product on this page once a day and record whether it still answers.
An AI-assisted spin-wheel maker for random picking, for teachers and teams running classroom picks, giveaways, or raffles instead of building a wheel manually.
No sign-upWorks offline
What to know▼
How it works
Generate entries with AI; customize colors, images, themes, weights, sounds; share or embed.
We check every product on this page once a day and record whether it still answers.
A calm, step-by-step guide to using the TI-Nspire CAS calculator across Analysis, Algebra, Statistics and Geometry, for upper-secondary students stuck with a 300-page manual and scattered tutorials.
FreeNo sign-upWorks offline
What to know▼
How it works
A step-by-step guide app for the TI-Nspire CAS calculator, covering key-by-key instructions across Analysis, Algebra, Statistics and Geometry.
What's different
Turns long menu paths from the 300-page manual into structured, searchable explanations, built for students rather than engineers.
Best for
Upper-secondary students handed a TI-Nspire CAS calculator who need clear instructions instead of the manual or scattered tutorials.
We check every product on this page once a day and record whether it still answers.
69 free, browser-based audio and video tools — format conversion, loudness metering, spectrogram viewing, trimming — that run entirely client-side so files never leave your device.
FreeNo sign-upNothing to install
What to know▼
How it works
69 audio and video tools -- hi-res audio analysis, LUFS loudness measurement, spectrogram viewing, format conversion, video trimming -- that run entirely client-side in the browser.
What's different
Files never leave your device since processing is 100% client-side, with no signup, watermarks, or limits.
Pricing
Free.
Best for
Anyone needing quick audio/video processing without installing software or uploading files.
We check every product on this page once a day and record whether it still answers.
A free 8-question quiz that grades your SaaS's retention, pricing and growth health, no signup required — a lead magnet for North Metric's paid Stripe-connected platform.
Watch out · It's a free lead magnet for North Metric's paid, Stripe-connected revenue intelligence platform.
FreeNo sign-up
What to know▼
How it works
An 8-question quiz that grades your SaaS's health across retention, pricing, growth, unit economics and ops cadence, giving an instant A+ to C grade with a breakdown of strongest and weakest dimension.
Pricing
Free, no signup, no Stripe connection required, takes 60 seconds.
Best for
SaaS founders who want a quick health check before deciding whether to go deeper with North Metric's paid platform.
Watch out
It's a free lead magnet for North Metric's paid, Stripe-connected revenue intelligence platform.
We check every product on this page once a day and record whether it still answers.
A free, no-signup random wheel spinner for giveaways, classroom picks and everyday decisions — a general-purpose picker, not built specifically for teachers or workplaces.
FreeNo sign-up
What to know▼
How it works
Add your options to a wheel, spin, and get a fair random result; 40+ ready-made wheels are available for common use cases, and any wheel can be shared by link.
What's different
No sign-up or download required, and works on any device as an installable app.
Pricing
Free to use.
Best for
Anyone running giveaways, classroom picks, team selection, or everyday decisions.
