Overgrid by Paintingstack
Grid
GridMaker.pro
ForthWrite
ReclaimAI
Superhuman
Shortwave
Serif AI
Gemini
Gmail
LIAM
Add a grid to any reference photo. Transfer proportions to canvas with confidence.
Import from your gallery or shoot with your camera. Set rows, columns, line weight, and color. Crop your image to match your exact canvas proportions before you grid, so every square lines up when you transfer. No guesswork, no wasted paint.
Adaptive contrast reads your image and picks grid colors that stay visible on any background. Dark lines on light areas, light lines on dark. You never lose the grid.
Value study breaks the image into tonal levels so you can plan light and shadow before you start. Temperature overlay maps warm and cool zones across the composition.
Save setups as presets. One tap to apply your favorite grid configuration to any new project. Add diagonals for composition analysis. Turn on numbering to track your squares.
Export at full resolution, up to 4096px, for printing or reference at any size.
Free includes three projects, basic grid, and 1080px export. Premium is $9.99, once. Not a subscription.
No account. No cloud. No ads. Your images never leave your device.
Available on iPhone, iPad, Mac, and Android.
ForthWrite is an AI email writing assistant for Gmail and Outlook that learns your writing style from your real sent mail. The more you use it, the more it sounds like you. Get smart drafts in seconds, auto-draft replies before you open your inbox, and maintain your personal voice at scale. Free to start, no credit card required. Works inside Gmail and Outlook on the web.
How it works
ForthWrite captures your tone, sentence rhythm, and sign-offs from your actual sent emails, then uses that profile to generate drafts that match how you write, not a generic AI voice. Every draft you edit or send improves the model over time.
Key features
Who uses it
Professionals who send high volumes of relationship-critical email: lawyers, financial advisors, recruiters, account executives, founders, and anyone who wants their inbox handled without sounding like a chatbot wrote it.
Pricing
Free tier includes 10 drafts per week with no credit card required. Paid plans start at $12/month and include unlimited drafts, custom persona prompts, and auto-draft.
Overgrid by Paintingstack ForthWriteOvergrid by Paintingstack's answer
Most grid apps stop at drawing lines on a photo. Overgrid adds tools that painters actually need: adaptive contrast that reads your image and picks grid colors that stay visible on any background, value studies that break the reference into tonal levels for planning light and shadow, and temperature overlays that map warm and cool zones across the composition. It also crops your reference to match your exact canvas proportions before you grid, so every square lines up when you transfer. No other grid app combines all of these in one place.
ForthWrite's answer:
ForthWrite learns your writing style from your actual sent mail, not a generic prompt. Every draft sounds like you wrote it because it was trained on how you actually write. It also auto-drafts replies before you open your inbox, so your email is partially handled before your day starts.
Overgrid by Paintingstack's answer
One price, no subscription. Most competitors either lock basic features behind recurring payments or show ads. Overgrid has a genuinely useful free tier and a single $9.99 lifetime purchase for everything. It also works offline with no account required, your images never leave your device. And it runs on iPhone, iPad, Android, and Mac.
ForthWrite's answer:
Most AI email tools give you a blank box and a "write for me" button. ForthWrite builds a voice profile from your sent history and gets more accurate with every draft you edit or send. Unlike ChatGPT or Gemini, it works natively inside Gmail and Outlook with no copy-paste. Unlike Lavender, it writes the draft, not just scores it.
Overgrid by Paintingstack's answer
Painters and illustrators who use the grid method to transfer reference photos to canvas. Art students learning to see proportions. Anyone who works from a reference image and needs accurate scaling, whether they are painting 8x10 inches or 4 feet wide.
ForthWrite's answer:
Professionals who send high volumes of relationship-critical email and cannot afford to sound generic: lawyers, financial advisors, recruiters, account executives, consultants, and founders managing their own inbox.
Overgrid by Paintingstack's answer
The grid method has been used by artists for over 500 years, from Albrecht Durer to Chuck Close. But the digital tools available for it were either too basic (just lines on a photo) or buried useful features behind subscriptions. Overgrid was built to be the reference tool painters actually want: fast grid setup, canvas matching, value studies, and adaptive contrast, all without accounts, ads, or recurring charges.
ForthWrite's answer:
Built out of frustration with AI writing tools that produce text that sounds nothing like the person sending it, and as a way to handle large amounts of daily email. The core insight was that your sent mail is the best training data you already have, and no tool was using it.
Overgrid by Paintingstack's answer
Flutter for cross-platform development (iOS, Android, iPad, macOS), Riverpod for state management, StoreKit 2 and Google Play Billing for in-app purchases, and Sentry for error tracking.
ForthWrite's answer:
Next.js, React, Supabase, Anthropic Claude, OpenAI, Stripe, Vercel, Chrome Extensions API
I built ForthWrite because I kept sending emails that sounded like they came from the same generic AI as everyone else. After launching it, I still use it for my own inbox every day, which is about the most honest endorsement I can give.
The Chrome extension lives inside Gmail and Outlook on the web. Open a thread, hit Alt+Shift+D, and a draft comes back in your voice, not a template. The free tier is real: 10 drafts per week, no API key, no credit card. Voice matching is included on free, because that is the point.
What keeps it useful compared to Gemini or a chat tab: it learns from what you actually send. Every edit you make before hitting send becomes a signal. Over time the drafts drift closer to how you really write, and the dashboard shows the improvement curve so you can see it happening.
The web compose surface lets you draft from forthwrite.ai without installing anything, useful for people who want to try before committing to the extension.
Standard adds recipient-aware and intent-aware drafting plus AI coaching. Pro adds auto-draft (replies waiting when you open Gmail), batch replies, and Prompt Lab for version-controlling your prompts. Teams adds a shared persona and seat-level analytics.
ForthWrite is not for everyone. If you just need quick replies and tone does not matter, Gemini is free and already in your inbox. ForthWrite is for people where tone does matter: client communication, relationship-driven threads, external correspondence where sounding off costs something real.
Disclosure: I am the founder and use it daily. Happy to answer questions in the comments.
Grid - Grid is software designed to assist professionals in creating quality software. The software features a number of essential features for dedicated coding specialists, each of which can prove invaluable in the long run. Read more about Grid.
ReclaimAI - Helps users prioritize their work and personal calendars
GridMaker.pro - Create accurate drawing grids with our free grid maker online. Customize lines, scale photos, and transfer images with better proportions. No signup required.
Superhuman - Superhuman is an email management tool.