GPTKey vs Echo IM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GPTKey
This AI-powered keyboard integrates advanced language models directly into your typing experience. Generate emails, brainstorm ideas, or craft messages instantly without switching apps. Enjoy daily free chats or unlock unlimited AI assistance with a subscription.
- Instant AI writing assistance
- Brainstorming and idea generation
- Works within any app
- Daily free AI chats
- Unlimited subscription option
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Stop switching between apps - GPTKey brings AI right into your keyboard. • Instant AI Help: Write emails, messages, captions, or brainstorm ideas without leaving your typing screen. • 5 Free Daily Chats: Try AI every day at no cost. • Unlimited with Subscription: Upgrade anytime for endless conversations. • Works Everywhere: Use it in any app — messaging, social media, notes, or work. Whether you’re drafting professional emails or chatting with friends, GPTKey saves time by keeping AI one tap away. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Echo IM
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Echo turns your most-used phrases into a keyboard. Copy any text → tap [+] to save it as a card → tap a card to paste it into any app. No more repetitive typing. [ CARD KEYBOARD · ONE TAP AWAY ] A horizontal grid of cards, grouped by Collection. Tap any card and the text is instantly inserted into the current field. Addresses, signatures, support replies, intros — always one tap away. [ AI POLISH ] The first cell on the keyboard is AI Polish. Tap it to rewrite the text before your cursor — each tap rotates through styles (smart → formal → concise → friendly → child-like → funny). Up to 3 results sit side-by-side for comparison. Tap the one you like to replace the original. • Built-in Echo MiniMax with a free quota, ready out of the box • Or bring your own API key: OpenAI / Claude / ZAI / MiniMax / Apple Foundation Models — unlimited [ CARD LIBRARY ] Organize cards in the main app: favorite, categorize, create, edit, reorder, backup & restore. Ships with official Collections (sales scripts, support replies, etc.) ready to use. [ TRULY LOCAL PRIVACY ] • Card data stays 100% on your device — no upload, no sync, no tracking • AI polish only reaches the network when you tap it, and only the text before your cursor is sent • No analytics, no tracking, no ad SDKs [ 2-STEP SETUP ] 1. Settings → Apps → Echo → enable Echo keyboard 2. Turn on "Allow Full Access" (required for AI polish) Long-press the globe while typing to switch to Echo. Echo doesn't try to be an all-in-one keyboard. It does one thing perfectly: your most-used phrases, always one tap away. Requires iOS 26.2 or later (Liquid Glass / Foundation Models).
Screenshots
Verdict
The clearest difference is in-app purchases: Echo IM at none against GPTKey's 2. GPTKey's advantage is iOS requirement (15.6 vs 26.2). On price, ads and device support 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
Both are free to download. GPTKey sells 2 in-app purchases, starting at $49.99 per 7 days. Echo IM asks for nothing beyond the download.
| Parameter | GPTKey | Echo IM |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 26.2 |
| Further details — not scored | ||
| Size | 9 MB | 95 MB |
| Age rating | 4+ | 4+ |
| Developer | Eunkwang Joo | Tadwill & Co., Limited |
In-app purchases
GPTKey
- GPTKey Pro 7 Days$49.997 Days
- GPTKey Pro 1 Month$199.001 Month
Echo IM
No in-app purchases









