Was $49.99
🖤 Black Friday — Lifetime Deal
Pay once via the App Store. Use Grambo for iPhone forever. All future iOS updates included. No subscription, no recurring charges.
🖤 Get on the App Store⏰ Limited time only. This Black Friday pricing is live now. Once the sale ends, the price goes back up. Don't wait.
What is Grambo for iPhone?
Grambo for iPhone is an AI-powered grammar and writing assistant designed for iOS. It works two ways: through the main Grambo app where you can paste and fix any text, and through a custom iOS keyboard extension that lets you fix grammar directly inside any app — Messages, Mail, WhatsApp, Slack, Notes, and more.
No matter where you're typing on your iPhone, Grambo can help you write better. Grammar fixes, spelling corrections, punctuation, and style improvements — all powered by your choice of AI: Grambo Cloud (zero setup), or your own API key from OpenAI, Anthropic, or Google (BYOK).
What is BYOK and Why It Makes the Lifetime Deal Even Better
BYOK stands for Bring Your Own Key. Instead of paying Grambo a subscription to use AI grammar correction, you connect your own API key from OpenAI, Anthropic, or Google directly to the app.
You add your API key once in Grambo's settings. When you fix a grammar mistake, the text goes directly from your iPhone to your chosen AI provider (OpenAI, Anthropic, or Google) — not through Grambo's servers. You pay the AI provider directly for usage, which is typically fractions of a cent per request. With the lifetime deal, there are no recurring Grambo charges on top of that.
For heavy users, BYOK is often dramatically cheaper than any subscription. For privacy-conscious users, it means your writing goes only to the AI provider you've chosen — not through an intermediary.
Who Should Get This Deal
The Grambo for iPhone Black Friday lifetime deal is especially well-suited for:
- Professionals who write emails, reports, or messages on their iPhone and want to sound polished every time.
- Students drafting essays or assignments on the go — grammar fixes happen right inside their notes app.
- Non-native English speakers who want real-time grammar assistance in English or their native language.
- Privacy-conscious users who want BYOK so their text goes straight to the AI provider they trust — not a third-party service.
- Anyone already paying for OpenAI or Claude — BYOK means you're using credits you already have, with no extra subscription.
- Mac users who already use Grambo — the iOS app extends your grammar toolkit to your iPhone seamlessly.
How to Get the Deal from the App Store
- Open the App Store on your iPhone
Search for "Grambo" or tap the link below to go directly to the Grambo app page.
- Download the app — it's free
Grambo is free to download. The lifetime deal is an in-app purchase you'll make inside the app.
- Open Grambo and go to Pricing
Tap on the Pricing or Upgrade section inside the app. You'll see the Monthly and Lifetime options. The Black Friday price of $19.99 is already live.
- Purchase the Lifetime plan
Tap "Get Lifetime" and confirm with Face ID or Apple ID. The purchase is processed securely by Apple via the App Store.
- Set up Grambo Cloud or BYOK
With Grambo Cloud, you're ready instantly. With BYOK, go to Settings → AI Provider and add your API key. Then start fixing your writing everywhere on your iPhone.
Black Friday FAQ
Is the iOS lifetime deal really lifetime?
Yes. You make a one-time in-app purchase through Apple and get access to Grambo for iPhone permanently, including all future iOS updates.
How is the lifetime deal different from the monthly plan?
The monthly plan ($2.99/month) includes unlimited Grambo Cloud fixes. The lifetime plan ($19.99 one-time) includes 100 Grambo Cloud fixes per month plus unlimited BYOK fixes. If you have your own API key (OpenAI, Anthropic, or Google), BYOK has no limits.
When does the Black Friday deal end?
The Black Friday pricing is available for a limited time. We strongly recommend locking in the $19.99 lifetime price before the sale ends.
Does this work on iPad too?
Grambo for iPhone is currently optimized for iPhone. iPad support is coming in a future update — which the lifetime deal will cover at no extra cost.
What if I already have a monthly subscription?
You can purchase the lifetime deal and cancel your monthly subscription through iPhone Settings → Apple ID → Subscriptions. Your monthly access continues until the end of the billing period, then transitions to your lifetime plan.
🖤 Black Friday 2026 — App Store Deal
Was $49.99
Grambo for iPhone — Lifetime. Pay once, write better on iOS forever.
🖤 Get on the App Store Now