String Theory! vs My Notes & Cards
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
String Theory!
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String Theory is a visual detective board app that helps you organize ideas, clues, and connections in one place. Create interactive boards where you can add Polaroid-style photos, notes, tags, and images, pin them freely, and connect everything with strings to reveal patterns and relationships. Perfect for detectives, writers, students, researchers, and creative thinkers, String Theory turns complex information into a clear visual map. Whether you’re solving a mystery, planning a story, organizing research, or brainstorming ideas, your board evolves as your thoughts connect. Features: - Create unlimited detective boards - Add Polaroid photos, images, and notes - Pin items anywhere on the board - Connect clues using realistic strings - Use tags to organize and group ideas - Clean, intuitive, and distraction-free design Organize your thoughts visually. See the connections. Follow the strings. Apple Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
My Notes & Cards
Organize your thoughts into structured sections with self-contained cards. Add photos, sketches, and locations to your notes. Enjoy a private, local experience without AI or cloud syncing.
- Organize thoughts into sections and cards
- Add photos and sketches to cards
- Attach locations to cards
- Universal keyword search
- Drag-and-drop reordering
- Local privacy, no cloud sync
- Native iOS experience
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My Notes & Cards is a notes app for people overwhelmed by other notes apps. The values behind the app is simplicity and structure. The user organizes thoughts into sections, each containing bounded "cards" — discrete, self-contained notes. Section tabs at the top, swipeable cards inside. Intended audience: anyone who has tried other app notes and found the lack of structure overwhelming. The app is intentionally not AI-powered, not cloud-synced, and locally private. Features: 1. Photo on a card (resizable, tap to fullscreen). 2. Doodle on a card (finger or Apple Pencil). 3. Attach a location to a card. 4. Universal keyword search across all sections. 6. Drag to reorder for sections and cards. 7. Native iOS, no web wrapper. 8. Sections you create yourself. 9. Cards inside each section, swipe-able. https://www.myworkingmemory.ai/notecards-terms.html https://www.myworkingmemory.ai/notecards-privacy.html
Screenshots
Verdict
The clearest difference is ads: My Notes & Cards at none against String Theory!'s shown. String Theory!'s advantage is iOS requirement (15.1 vs 17.6). On price, 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. String Theory! sells 3 in-app purchases, starting at $2.99 per 7 days and My Notes & Cards sells 2 in-app purchases, starting at $1.29 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | String Theory! | My Notes & Cards |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 3 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Vision Pro — better |
| Requires iOS | 15.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 56 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Synthify Inc | Myworkingmemory LLC |
In-app purchases
String Theory!
- Weekly$2.997 Days
- Yearly$24.991 Year
- One Time$29.99
My Notes & Cards
- My Notes & Cards Monthly$1.291 Month
- Pricing$6.001 Year







