Built by an infrastructure engineer, not a startup
Free calculators, native Mac apps, and cloud consulting — no black boxes.
GenOps is one engineer's toolbox: 26 free Irish tax & pension calculators that show their working, 6 native macOS apps led by MacGroom — the disk cleanup tool that finds what's actually filling your Mac — and fixed-fee cloud consulting on AWS. No signup, no sales team, no guessing what you're actually getting.
I build infrastructure for FinTech and Telecom companies by day — the kind of work where "trust me" isn't good enough, you check the math or the code. Everything here is built the same way: verifiable, runs locally where it can, and priced simply.
● Calculators run 100% in your browser — consulting is fixed-fee, direct with the engineer.
Why it's built this way
One engineer, three tools, no guessing
One engineer, not a growth team
No dark patterns, no upsell emails, no dashboards tracking what you clicked. Just tools that work, priced simply, maintained by the person who built them.
Calculators run entirely in your browser
No server round-trip, nothing stored, no account. Every calculator shows its working, not just a final number — if it matters enough to plan around, you should be able to check it.
All 6 Mac apps run 100% locally
Nothing you scan, clean, or paste is ever uploaded anywhere. Every free tier stays free forever; every Pro tier is a one-time purchase, never a subscription.
Consulting is fixed-fee and direct
You work with the person doing the work — no agency layer, no meetings-about-meetings. A clear scope and a clear price before anything starts.
In short
Free Calculators
26 calculators for the numbers that actually come up
Income Tax, USC & PRSI, CGT, inheritance tax, home buying costs and more — every one shows its working, runs entirely in your browser, and needs no signup.
Civil or public servant? The calculators below are private-sector (Defined Contribution) — your Single Scheme pension is a completely different, Defined Benefit calculation. There's a dedicated calculator for that.
Salary & Tax
Investments & Savings
Property & Life
Planning & Retirement
Cloud Consulting
Fixed-fee, hands-on cloud work
Networking, compute, CI/CD, observability, security — end to end, mostly on AWS. You work directly with the person doing the work, no agency layer.
Cloud Consulting
Quoted per project
Need cloud infrastructure built, not just audited? Networking, compute, CI/CD, observability, security — end to end, mostly on AWS. AWS Certified Solutions Architect – Professional. No account manager, no bench of juniors learning on your bill, no multi-week procurement process.
- What it covers — landing zones, migrations, CI/CD pipelines, observability, ongoing infra work
- How it runs — you work directly with the engineer doing the build, start to finish
- Pricing — scoped and quoted after a discovery call, project-based
AWS Cost Audit
$300–$1,000 flat fee
Running production on AWS? A flat-fee, read-only cost audit finds what's actually hiding in the bill — idle resources, oversized instances, orphaned volumes, waste no dashboard flags on its own.
- Scope — production accounts, all enabled regions; non-production included free
- Deliverable — a prioritised savings roadmap, PDF + JSON, in 5 business days
- Access — read-only throughout; nothing in your account is ever changed
Cloud Security Audit
$350–$1,000 flat fee
Root account with no MFA? A leaked key sitting in git history? One audit covers cloud, containers, and source repos — against CIS Controls, SOC 2, or ISO 27001 if that's your target, or straight to remediation if you already know what's wrong.
- Scope — production accounts, all enabled regions, plus container and repo scanning
- Deliverable — a severity-ranked findings report and a 30-minute walkthrough call
- Remediation — available separately, billed hourly, scoped after you see the report
Mac Apps
6 native Mac apps, no subscriptions
Every app below is a real, native macOS build — not Electron, no telemetry, no account. Free tiers stay free forever; every Pro tier is a one-time purchase.
MacGroom
Disk cleanup & AI model caches
Free / $24
MacShelf
Stats, calendar, clipboard, notepad
Free / $10
MacTwin
Exact-byte duplicate file finder
Free / $15
MacPeel
On-device screenshot OCR
Free / $10
MacHub
PDF & image toolkit
Free / $25
MacFilter
Blocks risky pastes into AI tools
Free
Our flagship: MacGroom
Finds the local AI model caches — Ollama, LM Studio, Hugging Face — that pile up fastest and never clean up after themselves, plus regenerable caches, dev-tool clutter, and forgotten files. Shows you the exact list, with sizes, before anything moves. Runs 100% locally.
Nothing deleted on a guess
Scanning and deleting are always separate, explicit steps — every deletion goes through Trash, recoverable, except emptying Trash itself.
- AI Model Caches — Ollama, LM Studio & Hugging Face weights, always flagged for review before removing one you still use
- Caches & Dev Tools — Xcode, Homebrew, Docker, npm, pip, Cargo & more
- Deep Scan & Storage Trend PRO — forgotten large files, tracked day over day
- Free tier stays fully functional forever — Pro is a one-time $24, not a subscription
Also Useful
A couple more tools worth knowing about
Invoice Generator
Billing a client? A free, no-signup invoice generator for Ireland (VAT) — edit directly on the invoice with live totals, PDF export, and recurring billing.
Try Invoice Generator →NiveshKaro
The same approach, for India — 21 free calculators (SIP, PPF, NPS, loans, old vs new tax regime, rent vs buy) plus a full income tax calculator, same no-signup, browser-only approach.
Explore NiveshKaro →