ZIG SIM vs Note To Self Mail
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZIG SIM
This app allows physical prototyping by sending smartphone sensor data to other devices via UDP socket communication. It enables verification of wearable devices and IoT without electronic kits. Supports various sensors and communication protocols.
- Smartphone sensor data transmission
- UDP socket communication
- Wearable device verification
- IoT prototyping
- Supports OSC and JSON messaging
- Adjustable communication rates (1-60 FPS)
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ZIG SIM is an application for physical prototyping. Stream mobile device sensor data to your computer in real time over a network, and connect to creative tools like Max/MSP, TouchDesigner, Processing, and Unity via OSC protocol — enabling interactive experiences and rapid prototyping. Supported Sensors & Features Acceleration / Gravity / Gyro / Quaternion / Compass / Pressure / GPS / 2D Touch / Touch Radius / 3D Touch / Beacon / Proximity Monitor / Mic Level / Remote Control --- Need more sensors and advanced features? Upgrade to ZIG SIM PRO, which adds NDI output, ARKit, image detection, NFC, Apple Pencil support, and more. ZIG SIM PRO: https://apps.apple.com/app/id1481556614
Note To Self Mail
Quickly capture your thoughts and send them directly to your inbox. This app integrates with popular to-do list applications, streamlining your workflow by sending notes via email. It offers basic note-taking with advanced features available in the pro version.
- Send notes directly to inbox
- Integrates with Trello, Evernote, etc.
- Attach photos (pro)
- Create sketches (pro)
- Attach audio notes (pro)
- Scan documents (pro)
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"Note To Self Mail" is the fastest app for your notes. You can send your notes directly into your inbox, fast and without much effort and detours. "Note To Self Mail" was designed to support mail import for your favorite todo apps like Trello, Evernote, Wunderlist, Any.do, Todoist and many more. The app is not intended to manage your notes, but it offers everything you expect from a note app: - Writing notes - Attaching photos or files (pro version) - Creating sketches (pro version) - Attach audio notes (pro version) - Scan documents (Pro-Version) To make things easier and more flexible: you can use different e-mail addresses as recipients and connect to your own e-mail account for sending. Suggestions or feedback? support@note2selfmail.app Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: ZIG SIM at none against Note To Self Mail's 3. ZIG SIM also leads on update cadence (every 9 days vs every 6 weeks) and rating (5.0 vs 4.8). Note To Self Mail's advantage is ratings volume (374 vs 8). On price, review sentiment, 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. Note To Self Mail sells 3 in-app purchases, starting at $4.99 per year. ZIG SIM asks for nothing beyond the download.
ZIG SIM holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Note To Self Mail has 374 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 88% of ZIG SIM's written reviews are positive against 90% of Note To Self Mail's, so the app with the better star average is not the one people write more warmly about.
ZIG SIM ships an update every 9 days, Note To Self Mail every 6 weeks. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.
| Parameter | ZIG SIM | Note To Self Mail |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) — better | 4.8 (374 ratings) |
| Positive reviews | 87.5% of reviews | 90.2% of reviews — better |
| Number of ratings | 8 | 374 — better |
| Update frequency | Every 9 days — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 85 MB |
| Age rating | 4+ | 4+ |
| Developer | 1-10, INC. | Mathias Lipowski |
Customer experience
ZIG SIM
Note To Self Mail
Bugs and requests
ZIG SIM
Not enough reviews yet to summarise bugs or requests.
Note To Self Mail
Reported bugs
7 issues- Google OAuth doesn't work properly
- Messages stuck in outbox with Google authentication
- App stops working after several weeks of use
- Safari share extension crashes or fails silently
- Browser sharing shows grey rectangle and fails
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- Music playback stops when sending notes
- Exchange server incompatibility
Requested features
8 requests- Scheduled/delayed send functionality
- Apple Watch native app
- Document scanning with PDF export
- YouTube title preservation in sharing
- iOS 26 UI updates
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- Improved browser extension performance
- Pop-up interface option instead of full screen
- Better Exchange server support
In-app purchases
ZIG SIM
No in-app purchases
Note To Self Mail
- Buy me a coffee$4.991 Year
- Pro Version$4.99
- Buy me a coffee$4.99
