ShieldSMS vs KeyFlow AI Keyboard & Writer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ShieldSMS
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ShieldSMS scans incoming SMS messages in real time and automatically blocks unwanted advertising and scam messages. Get rid of unnecessary messages on your phone with simple setup, powerful filtering, and a smart rule system. Key features: Real-time spam detection and automatic blocking Blacklist and whitelist management Quarantine suspicious messages and detailed reporting Number-based blocking & keyword filters Contacts-friendly — won't accidentally affect contacts in your phone book Privacy and performance: Data privacy is prioritized with on-device filtering; battery and performance optimizations have been implemented.
KeyFlow AI Keyboard & Writer
Enhance your typing experience with AI-powered writing assistance directly from your keyboard. Correct grammar, adjust tone, translate text, and generate content seamlessly across various apps. Save time with custom snippets and personalized AI actions.
- AI grammar and spelling correction
- Tone adjustment (professional, friendly, casual)
- Text translation (English/Spanish)
- Sentence rewriting and shortening
- Customizable AI actions and snippets
- Dictation with transcription
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Type it messy. Send it right. KeyFlow is an iPhone keyboard with AI writing tools in the row above your keys. Write your message the way you'd say it, then tap once to fix the grammar, make it shorter, change the tone or translate it. Every change is highlighted before it replaces your text, and the original is one tap away. ONE ROW, EVERY APP • Fix Grammar: spelling, punctuation and grammar. • Improve Writing and Make Shorter. • Change Tone: professional, friendly, casual or formal. • Translate between English and Spanish. • Explain This and Ask AI, without leaving the chat. • Snippets: save the lines you type every week and send them in one tap. • Your own actions: write a prompt once and it becomes a button. WRITE IN YOUR LANGUAGE AI actions reply in the language you wrote in, so they work in many languages. Typing, autocorrect and predictions are in English and Spanish; switch with the globe key. FIX JUST ONE SENTENCE Select a sentence and KeyFlow rewrites only that part. The rest of your message stays exactly as you wrote it. PREFER TO TALK? Record in the KeyFlow app and use the transcription in your writing. Dictation needs microphone access and an internet connection. START FREE Eligible installs include a limited AI trial and the full keyboard. Choose KeyFlow Pro for managed AI with nothing to set up, or Lifetime BYOK: pay once and use your own OpenAI API key, billed by OpenAI separately. Pro has usage limits. Plans, limits and your local price are shown in the app before you buy. Restore purchases at any time. YOU DECIDE WHAT'S SHARED Ordinary typing shares nothing with AI. An AI action sends the text you selected to OpenAI (with nothing selected, the current field); dictation sends the recorded audio. AI sharing needs your permission and can be turned off in Settings. Keyboard AI also needs iOS Full Access. No KeyFlow account. Works in Messages, Mail, Notes, WhatsApp and other apps with standard text fields. Password fields always use the system keyboard. Support: hello@lumozz.com Privacy: https://keyflow.lumozz.com/privacy.html Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
ShieldSMS and KeyFlow AI Keyboard & Writer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. ShieldSMS sells 3 in-app purchases, starting at $4.99 per month and KeyFlow AI Keyboard & Writer sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
ShieldSMS ships an update weekly, KeyFlow AI Keyboard & Writer every 11 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | ShieldSMS | KeyFlow AI Keyboard & Writer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly — better | Every 11 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone |
| Requires iOS | 18.5 | 18.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Yasin Karateke | Lumozz |
In-app purchases
ShieldSMS
- ShieldSMS Aylık Premium7 Days trial$4.991 Month
- ShieldSMS Yıllık Premium$29.991 Year
- ShieldSMS Ömür Boyu Premium$99.991 Year
KeyFlow AI Keyboard & Writer
- KeyFlow Pro$4.991 Month
- KeyFlow Pro$39.991 Year
- KeyFlow BYOK Lifetime$14.99
Questions
Is ShieldSMS free?
Is KeyFlow AI Keyboard & Writer free?
Do ShieldSMS or KeyFlow AI Keyboard & Writer have ads?
Which is updated more often, ShieldSMS or KeyFlow AI Keyboard & Writer?
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