SonnetAI vs BrainDump
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SonnetAI
This app transforms conversations into insightful, customizable notes with advanced features like concept maps and tailored templates. It helps users track relationships and build a knowledge asset that evolves over time.
- AI-powered insights
- Customizable notes
- Concept maps
- Tailored templates
- Relationship tracking
- Evolving knowledge asset
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Sonnet is not another generic AI notetaker. It's a tool that turns every conversation into context-rich insights that get smarter over time. Create 100% customizable notes with tables, concept maps, and tailored templates. Track relationships, not just conversations — so your notes become an asset, not a backup that you never look at. T&C : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
BrainDump
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**Capture Everything. Friction Nothing.** BrainDump is the "Zero Resistance" voice capture tool designed specifically for neurodivergent brains (ADHD, Dyslexia) and anyone who values speed. Stop struggling with typing, organizing, and navigating complex menus just to save a thought. Just tap the giant button and speak. BrainDump handles the rest. **CORTEX-M1 INTELLIGENCE** Our local AI engine runs entirely on your device to understand your voice in real-time. It automatically detects: - Events & Appointments - Reminders & deadlines - Todo items - Random ideas **ZERO PRIVACY COMPROMISE** - **100% On-Device Processing**: Your voice and data never leave your phone. - **No Account Required**: Start using immediately. - **iCloud Sync**: Securely sync across devices using your own private iCloud. **KEY FEATURES** - **Instant Capture**: One tap to start recording. - **Auto-Export**: Automatically syncs recognized events to your iOS Calendar and Reminders. - **Day Grid**: A visual "Today" view to see what you've captured. - **Neo-Brutalist Design**: High contrast, big interactions, zero clutter. **PRO FEATURES** - Unlimited voice captures (Free tier: 3/day) - Advanced AI extraction models - Priority processing - Support independent development **Designed for the neurospicy brain. Unload your mind, keep your focus.** Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: BrainDump at every 2 months against SonnetAI's every 9 months. SonnetAI's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases 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. SonnetAI sells 4 in-app purchases, starting at $25.00 per month and BrainDump sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
SonnetAI ships an update every 9 months, BrainDump every 2 months. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.
| Parameter | SonnetAI | BrainDump |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 9 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 40 MB | 3 MB |
| Age rating | 17+ | 4+ |
| Developer | AAARK Ventures LLC | 鹏程 刘 |
In-app purchases
SonnetAI
- Plus Subscription.$25.001 Month
- Pro Subscriptions$35.001 Month
- Plus Annual Subscriptions$179.991 Year
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- Pro Annual Subscriptions$239.991 Year
BrainDump
- BrainDump Pro$1.991 Month
- BrainDump Pro$19.991 Year
- BrainDump Lifetime$49.99
