NoteAgent vs Echo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NoteAgent
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NoteAgent helps you learn better from your notes using advanced AI analysis and interactive learning sessions. Key Features: • Note View: Capture notes via camera, get AI analysis (including advanced features with subscription), summaries, and practice questions. • Learning View: Engage in interactive sessions with feedback and progress tracking (unlimited checkpoints with subscription). • Notion Sync: Access notes across devices seamlessly. • Export Options: Export your notes in multiple formats (subscription required). Perfect for students, professionals, and lifelong learners who want to maximize retention from study materials. Take a photo, let AI analyze it, learn interactively, and track your progress. Get full access, including advanced AI, unlimited checkpoints, and multiple export formats, for $ $9.99 $ per month. Simple, powerful, effective.
Echo
This AI-powered keyboard transforms your voice into text with advanced accuracy. It understands context to correct errors, add punctuation, and offer natural input. Features include real-time transcription, multiple AI editing modes, and bilingual support.
- Real-time streaming transcription
- Multiple AI editing modes
- Smart homophone correction
- Bilingual support (Chinese & English)
- Integrated keyboard extension
- Context-aware corrections
- Personalized dictionary
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Echo: Semantic Voice Keyboard reimagines productivity by turning your voice into text with remarkable accuracy. Powered by advanced speech recognition and semantic language models, it understands context to correct homophones, fix punctuation, and provide fluid, natural input. KEY FEATURES: • Real-time streaming transcription — see your words appear as you speak • Stream & Batch modes — real-time or high-accuracy transcription, your choice • In-keyboard settings panel — switch AI modes without leaving your conversation • Four AI modes: Quick transcript, Polish, Concise, and full Rewrite • Smart homophone correction powered by deep decode technology • Bilingual support (Chinese & English) with seamless switching • Integrated keyboard extension — dictate anywhere across iOS • Context-aware corrections using conversation history • Personalized dictionary that learns your vocabulary • Built-in translation and structured output formatting HOW IT WORKS: Echo uses cloud-based speech recognition to deliver fast, accurate transcription. An optional AI editing layer polishes your text — fixing errors, removing filler words, and refining your writing style. You control how much editing is applied. PRIVACY: Audio is processed via secure cloud speech recognition services. Text corrections use encrypted API connections. No audio is stored on our servers. No data is shared for advertising. Your transcription history stays on your device. Whether you're drafting messages, taking notes, or writing emails, Echo transforms how you interact with text. Speak naturally — Echo handles the rest. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://echovoice.me/privacy
Screenshots
Verdict
NoteAgent and Echo are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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. NoteAgent sells 1 in-app purchase, starting at $9.99 per month and Echo sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | NoteAgent | Echo |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (7 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 7 — better |
| Update frequency | — | Every 11 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 13 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Soul AI LLC | Xiang Gui |
In-app purchases
NoteAgent
- Basic Plan$9.991 Month
Echo
- Echo Pro Monthly$9.991 Month
- Echo Pro Annual$79.991 Year









