Comparison

Go Postal vs One Big Keyboard

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Go Postal

This AI-powered assistant helps you manage your inbox efficiently. It automates email organization, generates responses in seconds, and learns your writing style. Save time and stay focused on what matters most.

Highlights
  • AI-generated email responses
  • Smart inbox filtering and organization
  • Learns user's writing style
  • Bulk email management
  • Predicted important emails
Features
Read full description

GIVE YOUR INBOX SUPERPOWERS! GoPostal uses Artificial Intelligence and Machine Learning to help you save time reading, writing, and clearing emails. Managing your inbox shouldn’t take hours — let AI automate the process! We’re dedicated to maximizing your time and efficiency. With GoPostal, you can finally put an end to the never-ending inbox. AI-Generated Responses Compose emails in seconds with AI-generated responses. Choose a tone, enter a prompt, edit the response directly, or regenerate a new one with a tap. The more you use GoPostal, the smarter it becomes — learning from your edits to sound more like your own voice. Smart Filters GoPostal automatically organizes your inbox into simple categories to help you focus on what matters. From the Filters tab or Dashboard, you can bulk delete, review, and recover emails as needed. Postal Response Waiting – Predicted important emails you’re most likely to respond to. No Response / Read – Emails you’ll probably want to read but not reply to. Spam / Ready to Delete – Emails identified as spam or unimportant, ready to be cleared. Save Time. Stay Focused. GoPostal is designed to help

About

One Big Keyboard

Features
Read full description

One Big Keyboard is not a typical keyboard — it is a search tool that lives on your keyboard. It puts Google-style search operators one tap away, in any app, so you find exactly what you're looking for instead of scrolling past what you're not. THE PROBLEM Search engines are powerful, but only if you speak their language: site:, filetype:, intitle:, "exact match", -exclude. Almost nobody types these by hand — they're fiddly, easy to mistype, and hard to remember. THE FIX Tap a chip and the operator drops in, cursor already in place. No syntax to memorize, no colons to hunt for. Build a precise query in seconds, right where you're already typing. WHAT MAKES IT DIFFERENT • An operator chip row over a full QWERTY — the operators you use most, always one tap away • Swipeable operator pages: site targeting, file types, exact match, exclusions, and the full power set • Templates — save a reusable pattern like "site: [pick] filetype: [pick] [keywords]" and fill the blanks with taps • "Describe a search" — type plain English, get the right operator string, built entirely on-device • Saved searches, custom operators, and custom pages — make it yours OPERATORS BUILT IN • site: — search inside one website • filetype: — find PDFs, slides, spreadsheets • "exact phrase" — match words exactly • -exclude — drop results you don't want • intitle:, inurl:, OR, before:/after:, related:, and the rest MADE YOURS • Color themes — recolor the whole keyboard, or mix your own • Seven key-click sounds, from a classic tock to a mechanical click • Sync your operators, templates, and theme across devices through your own private iCloud PRIVATE BY DESIGN No ads. No tracking. Nothing you type ever leaves your device — the keyboard has no networking code at all. Full Access is used only to save your own setup to your device. FREE FOREVER The keyboard and its core operators are free, always. One-time Pro unlocks custom operators, templates, saved searches, color themes, extra sounds, and iCloud sync. Works with Google and any search engine that supports operators like site: and filetype:. Turn your keyboard into a search tool. Find what you're actually looking for.

Screenshots

Go Postal4 screens
One Big Keyboard4 screens

Verdict

The call

The clearest difference is device support: Go Postal at 3 against One Big Keyboard's 1. Go Postal also leads on iOS requirement (13.4 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Go Postal sells 4 in-app purchases, starting at $14.99 per month and One Big Keyboard sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 7 level
Go Postal versus One Big Keyboard: the parameters behind the verdict, then further details
ParameterGo PostalOne Big Keyboard
PriceFreeFree
Rating5.0 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.4 — better17.0
Further details — not scored
Size36 MB3 MB
Age rating4+4+
DeveloperGoPostalHello Good Day LLC

In-app purchases

4 purchases

Go Postal

Subscriptions2
  • Monthly Package7 Days trial$14.991 Month
  • Yearly Package7 Days trial$154.991 Year
One-time2
  • Monthly Package$14.99
  • Yearly Package$154.99
1 purchases

One Big Keyboard

One-time1
  • One Big Keyboard Pro$4.99

Questions

Is Go Postal free?
Go Postal is free to download, with in-app purchases available.
Is One Big Keyboard free?
One Big Keyboard is free to download, with in-app purchases available.
Do Go Postal or One Big Keyboard have ads?
Neither Go Postal nor One Big Keyboard shows ads.

Other comparisons