Harpreet Singh

Harpreet Singh · Independent software maker

Four products. One maker. Sold direct.

I build and run web software and sell it straight to the people who use it, as monthly or yearly subscriptions with a free tier on every product. Each product lives on its own domain. This page is the public record of what is sold, at what price, and on what terms.

snaplab

snaplab.hsingh.app ↗Live

Developer API · Subscription

What it does

snaplab turns a URL or raw HTML into a screenshot, a PDF or an Open Graph image with a single API request. It runs real headless Chromium, so pages render exactly as a browser shows them, including web fonts, JavaScript-built content and lazy-loaded images.

  • Full-page and viewport capture, device emulation, retina scaling, PNG / JPEG / WebP output.
  • Ad blocking and automatic cookie-banner dismissal so captures are clean.
  • HTML-to-PDF with page size, margins, headers and footers.
  • Templated OG images for blogs, docs and product pages.
  • Dashboard with API keys, usage metering, request logs and team members.

Who it is for

Developers and small teams who need reliable rendering without running their own browser fleet: link-preview generation, archiving, invoice PDFs, visual testing, social cards.

Plans

FreeLimited monthly renders, watermark-free, for evaluation and hobby use.$0
StarterHigher monthly quota, all output formats, email support.$9 /mo · $90 /yr
ProLarge quota, priority rendering queue, longer request timeouts, webhooks.$29 /mo · $290 /yr
BusinessHighest quota, multiple team members, dedicated capacity, priority support.$79 /mo · $790 /yr
Pricing and quotas ↗Product site ↗

Tick

tick.hsingh.app ↗Live

Monitoring · Subscription

What it does

Tick watches the jobs that are supposed to run on a schedule: backups, billing runs, imports, cleanups. Each job gets a unique URL; when the job finishes it pings that URL. If the ping is late or never arrives, Tick alerts you.

  • Per-check schedules with grace periods, so slow-but-fine runs don't page you.
  • Alerts by email and webhook, with recovery notices when the job comes back.
  • Run history and duration tracking for every check.
  • Simple integration: one curl at the end of any script.

Who it is for

Developers and operators running cron jobs, scheduled tasks or background workers who want to find out about failures before their users do.

Plans

FreeA handful of checks, email alerts, forever.$0
SoloMore checks, webhook alerts, longer history.$5 /mo
TeamMany checks, multiple alert contacts, team access.$19 /mo
Pricing ↗Product site ↗

Sigil

sigil.hsingh.app ↗Live

Design tool · Subscription

What it does

Sigil is a studio for email signatures with motion. You compose a signature in a visual editor, add subtle animation, and Sigil exports an inbox-safe GIF plus the HTML block to paste into your mail client. Signatures are hosted so they keep working across devices.

  • Visual editor with typography, colour and layout controls, live preview.
  • Motion presets tuned to stay small and render in every major mail client.
  • Hosted image delivery with copy-ready HTML for Gmail, Outlook and Apple Mail.
  • Team signatures with a shared brand template.

Who it is for

Freelancers, founders and small teams who want a signature that stands out without breaking in the recipient's inbox.

Plans

FreeCreate and export a signature with Sigil branding.$0
ProUnbranded exports, hosted signatures, unlimited edits. Price shown on the product's pricing page.Subscription
Pricing ↗Product site ↗

Hearth

saving.hsingh.app ↗Live

Personal finance · Subscription

What it does

Hearth is a shared money app for a household. Everyone in the household sees the same accounts, budgets, recurring bills and savings goals, and an AI advisor answers questions using the household's actual numbers rather than generic advice.

  • Shared household with individual logins and clear ownership of accounts.
  • Budgets, recurring bills, goals with target dates and monthly contributions.
  • Loan and mortgage schedules with overpayment modelling.
  • Advisor chat grounded in your data; nothing is used for training.

Who it is for

Couples and families who manage money together and want one honest view of it.

Plans

FreeOne household, core budgeting and goals.$0
HouseholdUnlimited members, advisor chat, loan modelling, exports. Price shown on the product's pricing page.Subscription
Pricing ↗Product site ↗

In the pipeline

Products in development under the same business. None are for sale yet; when one launches it is added to the ledger above with its plans and the same policies apply. Stages: Building means code is running privately, Alpha means a small group is using it, Research means design and validation.

Agent Memory Alpha

Plug-and-play long-term memory for AI agents. Open-source engine plus a hosted service: raw interaction history as the durable record, object storage as the source of truth, fast retrieval on every agent turn. MCP server and Python SDK first.

Open core · hosted usage plans
Sift Building

Web data API for applications and AI agents: scrape, crawl, search and extract clean Markdown or structured JSON from any page, with tiered fetching that escalates to a real browser only when it has to.

Usage-based API
isobox Cloud Building

Hosted version of isobox, the open-source sandbox for running untrusted and AI-generated code. Ephemeral, resource-capped environments in six languages, billed per execution.

Open core · usage-based API
Substrate Research

Multi-tenant micro-VM sandbox platform: create, run, pause and destroy isolated compute sandboxes for your own end users through an API. Working codename.

Open core · hosted
Vault Alpha

Private personal media vault with content-addressed, deduplicated storage, direct-to-cloud uploads for very large files, albums and password-protected sharing.

Storage subscription
Subtree Research

Early development. Details to follow.

To be announced

The business

Legal name
Harpreet Singh, sole proprietor, trading under his own name.
Activity
Development and operation of web-based software products, sold online directly to consumers and businesses as subscriptions.
Product brands
snaplab, Tick, Sigil and Hearth. All four are owned and operated by Harpreet Singh. Each runs on its own domain and is governed by the policies on this site.
How you buy
Self-service checkout on each product site. Payments are processed by Stripe. Card details never touch our servers.
Delivery
Instant. Paid features unlock in your account the moment payment succeeds. Nothing is shipped.
Billing
Subscriptions renew automatically, monthly or yearly, until you cancel. Cancel from your account dashboard or by email; access continues to the end of the paid period.
On your statement
HSINGH.APP* SNAPLAB, HSINGH.APP* TICK, and so on: this business name followed by the product.
Customers
Individuals, developers and small businesses worldwide. Service in English.
Website
hsingh.app
Email
[email protected]

Policies

Terms of ServiceAccounts, billing and auto-renewal, acceptable use, your content, liability, termination.Read the terms Refunds & cancellation14-day refund on first charges, 7 days on monthly renewals, prorated on yearly plans. Refunds are net of payment processing fees, except when the error is ours. Cancel any time.Read the refund policy PrivacyWhat is collected, why, who processes it, how long it is kept, and your rights. Servers in the EU. No data sales.Read the privacy policy

Contact

[email protected]

Sales, billing, refunds, security reports. Support is answered within two business days; billing and refund requests usually the same day. Include the product name and the email you used at checkout.

Security disclosures: same address, "SECURITY" in the subject. Acknowledged within 48 hours.