Toolisky VS Diffyn

Toolisky's answer

Honestly, the thing I care about most is that nothing you type into Toolisky ever leaves your browser. No server round-trip, no logging, no "we value your privacy" popup that actually means the opposite. I built it that way on purpose — most calculator sites online quietly store or track what you enter, and I just didn't want to build another one of those.

It's also focused specifically on India — tax slabs, HRA, PAN/UPI formats, the stuff that actually changes every financial year. I try to keep the tools updated when the rules change instead of letting them go stale. And it's free, no signup, no premium plan trying to sneak in later.

Diffyn's answer:

Addresses workflow and change management on LLM prompts, provide teams with traceability and visualization of tests across multiple models, provide deeper understading into efficiency of these prompts.

Toolisky's answer

If you've ever tried to just quickly check your tax liability online and instead got hit with a signup wall, five ads, and a "create account to see your result" screen — that's exactly what I built Toolisky to avoid. You put in your numbers, you get your answer, nothing is saved anywhere.

It's also just fast. No loading spinners, no bloated design. And because I keep the tools current with actual Indian tax law changes (new vs old regime, the recent CBDT updates, stuff like that), you're not stuck using a calculator that's quietly wrong because nobody updated it in two years.

Diffyn's answer:

Diffyn is the platform that specializes on both change management and multi-model analysis.

Toolisky's answer

Built with [whatever you actually used — plain JS / React / Next.js etc]. Kept it lightweight on purpose, no heavy frameworks, everything calculates client-side so nothing touches a server.

Diffyn's answer:

React, Next.js, POSTGRESQL

Toolisky's answer

Mostly people in India dealing with everyday money and tax questions — salaried folks trying to figure out old regime vs new regime, freelancers checking their tax liability or MSME loan coverage, students and parents using the education-related tools, that kind of thing.

Basically anyone who just wants a quick, honest answer to a specific question without signing up for a whole tax-filing platform to get it.

Diffyn's answer:

Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.

Toolisky's answer

It came out of pure frustration, honestly. I kept needing to check simple stuff — my tax slab, HRA exemption, whether I should file ITR-1 or ITR-4 — and every site either wanted my email first or buried the actual calculator under ads. I just wanted a number, not an account.

So I started building my own version — dead simple, works instantly, doesn't ask for anything. It began with a couple of tax calculators and just kept growing from there. I add new tools whenever I run into a calculation I think other people are probably also googling.

Diffyn's answer:

I started working on Diffyn when I notice that prompting has become an essential part of work across many industries. While there are version control platofrms like github, they are not designed for just prompt management are can be overkill such applications, it is also not integrated natively with various LLMs and relevant tools for users to validate ideas and visualise results properly.

Toolisky's answer

No named customers really — it's a free tool anyone can use without an account. Mostly individual users in India: salaried employees, freelancers, small business owners, and students.