Prompt Safe vs Knowly AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Prompt Safe
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Your prompts. Kept safe. Prompt Safe is a local-first productivity app designed to help you store, organize, and reuse your AI prompts — securely and privately. No accounts. No cloud. No tracking. All your prompts stay only on your device. Key Features • Store and manage AI prompts • Organize with tags and collections • Fast search and instant copy • Template-based prompts • Generate shareable prompt cards • Works fully offline Privacy by Design • No sign-up or login • No server storage • No ads or tracking • No prompt data sent externally Prompt Safe never analyzes, collects, or learns from your prompts. Perfect for • Developers, designers, and creators using AI daily • Anyone who wants to treat prompts as reusable assets • Users who prefer private, offline tools over cloud services Note Prompt Safe is a prompt management tool. It does not generate AI outputs or guarantee specific results.
Knowly AI
This AI-powered assistant facilitates clear communication for individuals working, living, or traveling internationally. It goes beyond simple translation to organize meetings, calls, and documents, providing clear records for follow-up. Ideal for professionals and travelers needing reliable cross-language support.
- Face-to-face translation
- Live interpretation and meeting captions
- AI-powered bilingual calls
- Photo translation for signs and documents
- Automatic meeting summaries and transcripts
- Custom glossaries for industry terms
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Knowly is an AI-powered communication assistant designed for people who work, do business, live, or travel abroad. Knowly understands what you need. It does more than translate a sentence. It helps organize meetings, calls, documents, and in-person conversations into clear records you can review and follow up on. Whether you are attending a supplier meeting, managing a factory, handling logistics and customs clearance, negotiating a business deal, visiting a doctor, or simply traveling, Knowly makes cross-language communication clearer and more reliable. Key Features Face-to-Face Translation Designed for one-on-one conversations. Knowly translates each sentence into both languages so everyone can quickly understand the key points. Live Interpretation and Meeting Captions Ideal for meetings, trade shows, and group conversations. View the original speech and translation continuously to keep up with the conversation in real time. AI-Powered Bilingual Calls Start or join a voice or video call using a call ID. View real-time captions and access your call history afterward. Photo Translation Translate menus, signs, documents, drawings, receipts, and more. Take a photo or import an image from your photo library to recognize and translate the text. Meeting Notes After a translation session, Knowly automatically organizes summaries, key terminology, and original transcripts, making it easy to review, copy, and follow up. Glossaries and Scenario Preferences Save commonly used expressions for industries and scenarios such as mining, manufacturing, engineering, trade, customs clearance, logistics, and food service. Keep important terminology accurate and consistent across conversations. Who Knowly Is For - People working, doing business, or living abroad - Teams communicating with international customers, suppliers, or employees - Professionals handling customs clearance, logistics, contracts, invoices, and packing lists - Anyone who needs meeting interpretation, call captions, and communication records - Travelers, trade show attendees, and short-term business travelers Knowly turns language into more than a translation. It becomes your communication assistant for working and living abroad. Monthly Auto-Renewing VIP Subscription Subscription Period: 1 month Subscription Price: US$12 per month Additional Terms Payment Payment will be charged to your Apple Account when you confirm your purchase. Renewal Your subscription automatically renews unless canceled at least 24 hours before the end of the current subscription period. Your Apple Account will be charged within 24 hours before the renewal date. After payment is successfully processed, the subscription will renew for another month. Canceling Your Subscription To cancel automatic renewal, open Settings on your iPhone, tap your name, select Subscriptions, choose the Knowly subscription, and tap Cancel Subscription. Please cancel at least 24 hours before the end of the current billing period. Auto-Renewable Subscription Service Agreement: https://api.knowlyai.cn/dongyi/userRenewalAgreement.html Terms of Service and Privacy Policy: https://api.knowlyai.cn/dongyi/user-agreement.html
Screenshots
Verdict
The clearest difference is in-app purchases: Prompt Safe at none against Knowly AI's 12. Knowly AI's advantage is iOS requirement (14.0 vs 17). On price, update cadence, 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. Knowly AI sells 12 in-app purchases, starting at $3.89 per month. Prompt Safe asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 28, 2026 and November 1, 2026 respectively.
| Parameter | Prompt Safe | Knowly AI |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 days | Every 2 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17 | 14.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 115 MB |
| Age rating | 4+ | 4+ |
| Developer | The K Media | Beijing Hi Hello Education Technology Co., Ltd. |
In-app purchases
Prompt Safe
No in-app purchases
Knowly AI
- Knowly Lite Monthly Plan 2$3.891 Month
- Knowly Lite Monthly Plan 1$4.091 Month
- Knowly Lite Monthly Plan$4.291 Month
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- Knowly Pro Monthly Plan 2$8.991 Month
- Knowly Pro Monthly Plan 1$9.491 Month
- Monthly Subscription$12.001 Month
- Monthly Subscription$15.001 Month
- Knowly Translation Add-On Package 2$1.29
- Knowly Translation Add-On Package 1$1.39
- Knowly Translation Top-Up$1.49
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- Personal Business Travel Plan 2$11.49
- Personal Business Travel Plan 1$12.49









