SaySum vs Synapse
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
SaySum
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SaySum is an intelligent voice recording and transcription assistant that helps you turn speech into clear, readable text. Record meetings, lectures, interviews, conversations, or personal thoughts, and let SaySum help you organize the content into transcripts, summaries, and key information you can review anytime. SaySum supports background recording, so you can continue recording while the screen is locked or while using other apps. With AI features, you can summarize your recordings, extract key points, and ask questions based on your audio and transcripts. This helps you quickly understand what was said without replaying the entire recording. SaySum also supports Control Center shortcuts, allowing you to quickly open SaySum or start recording from Control Center. With Nearby Transfer, you can send recordings and related content directly to nearby devices that also have SaySum installed. Nearby Transfer can include the audio file, speech-to-text transcript, and summary if available. Nearby transfers are sent directly between nearby devices and do not use SaySum servers. You can also adjust the appโs text size for better readability on iPhone, iPad, and Mac. Key Features: โข Record audio and transcribe speech into text โข Background recording support โข AI summaries and key point extraction โข Ask questions based on your recordings and transcripts โข Save and manage your recordings locally โข Share audio and transcript content โข Nearby Transfer between SaySum devices โข Control Center shortcuts for quick access โข Adjustable text size for improved readability โข Support for multiple languages Privacy and Data Handling: AI processing is performed on SaySumโs secure servers. Your audio and text are processed within our controlled environment and are not sent to external AI services for inference. All audio and text data are protected with HTTPS/SSL/TLS encryption during transmission. Uploaded content is used only to provide the requested features, such as transcription, summarization, and AI question answering. Uploaded audio and text content is automatically deleted after processing is complete. We do not retain your recordings, transcript content, summaries, or AI question content after processing. We only store the account information required for authentication, subscription, and usage management, such as Apple Sign In or Google Sign In account data. We do not store unrelated personal data. Nearby Transfer is handled directly between nearby devices and does not use SaySum servers. AI-generated content may contain errors. Please review transcripts, summaries, and AI responses before using them for important decisions. Website: https://www.forebony.com/SaySum/ Terms of Use: https://chocolate-syrup-adc.notion.site/SaySum-Terms-of-Use-323244ace2c780b19d82ccbcfdfb0793 Privacy Policy: https://chocolate-syrup-adc.notion.site/SaySum-App-Privacy-Policy-1eb244ace2c78047b33fc260652ce237
Synapse
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Feeling overwhelmed by endless meetings, lectures, or videos? Meet Synapse AI: Your intelligent assistant that instantly understands and summarizes voice notes, meetings, and even YouTube videos. Transform how you capture and process information โ welcome to your AI Second Brain. Effortless Recording & Instant Understanding Record meetings, interviews, or ideas with a single tap. Synapse accurately converts voice to text and delivers AI-generated summaries within minutes. Stop re-listening to long recordings; focus on what matters most. Summarize Videos and Articles in Seconds Paste any YouTube link, article, or document. Synapse extracts the essential insights, allowing you to grasp key ideas quickly and skip the fluff. Get back valuable time in your day. Chat With Your Knowledge Ask questions directly to your notes, like "What were the key decisions from last week's team sync?" Synapse searches your recorded and summarized content to provide precise answers instantly. Accessing your information has never been easier. Scan and Digitize Anything Easily capture handwritten notes, whiteboard discussions, or printed materials. Synapse turns them into searchable digital text, keeping everything organized and accessible within your AI Second Brain. Why Choose Synapse? Save Precious Time: Understand long voice recordings and videos in a fraction of the time. Stay Focused: Quickly access key points, decisions, and action items. Organize Effortlessly: All your captured knowledge - recordings, transcripts, summaries, scans - unified in one intelligent workspace. Download Synapse today and build your intelligent knowledge base. Privacy Policy: https://bseyha.notion.site/notebookgpt-privacypolicy Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Synapse at every 2 days against SaySum's every 3 weeks. SaySum's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. SaySum sells 8 in-app purchases, starting at $0.99 per month and Synapse sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
SaySum ships an update every 3 weeks, Synapse every 2 days. Both last shipped on September 15, 2026.
| Parameter | SaySum | Synapse |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 2 days โ better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, Mac, Apple Watch โ better | iPhone, iPad |
| Requires iOS | 18.6 | 17.0 โ better |
| Further details โ not scored | ||
| Size | 9 MB | 40 MB |
| Age rating | 12+ | 4+ |
| Developer | DING JIE TSAI | Halit Seyfullah Baskurt |
In-app purchases
SaySum
- Monthly 60-minute credits$0.991 Month
- Monthly 120-minute credits$1.991 Month
- Weekly 120-minute credits$1.997 Days
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- Monthly 180-minute credits$2.991 Month
- Monthly 300-minute credits$4.991 Month
- Monthly 650-minute credits$9.991 Month
- Monthly 1400-minute credits$19.991 Month
- Monthly 2000-minute credits$29.991 Month
Synapse
- Weekly Pro$3.997 Days
- Take Notes With AI | 1w7 Days trial$5.997 Days
- PRO (1m)$14.991 Month









