Moku vs Obsidian
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Moku
This platform provides professional-grade scientific and engineering instruments on an iPad. It offers 16 versatile tools, including oscilloscopes and spectrum analyzers, with advanced customization options. Seamlessly control experiments, stream data, and share findings wirelessly.
- 16 professional-grade instruments
- Customizable test setups
- Wireless iPad control
- Real-time data streaming
- Cloud and email data sharing
- Demo mode with simulated signals
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Moku is a revolutionary all-in-one test and measurement platform for professional scientists and engineers, with 16 professional-grade instruments: • Oscilloscope • Spectrum Analyzer • Gigabit Streamer • Waveform Generator • Phasemeter • Data Logger • Lock-in Amplifier • PID Controller • FIR Filter Builder • Frequency Response Analyzer • Arbitrary Waveform Generator • Digital Filter Box • Laser Lock Box • Logic Analyzer / Pattern Generator • Time & Frequency Analyzer • Neural Network plus the ability to create your own customized test setup with Multi-Instrument Mode and GenInst Studio or Moku Compile. With high-speed analog inputs and outputs combined with reconfigurable FPGA hardware, the digital signal-processing capabilities are virtually limitless. The Moku app for iPad communicates wirelessly with your device and is mission control for all of your Moku instruments. Each instrument features an intuitive multi-touch user interface, thoughtfully designed and meticulously optimized for iPad. Stream data and control your experiment in real time as you move around the lab. Connect to Dropbox, iCloud or email to instantly save your data and share your breakthroughs with colleagues or friends. Try out the app in demo mode to interact with simulated signals and experience the innovative iPad interface. For more information visit www.liquidinstruments.com.
Obsidian
Organize your thoughts and ideas with a powerful knowledge base that stores your notes as plain text Markdown files. Access your personal second brain on any device, with extensive customization options and community-driven plugins.
- Local Markdown file storage
- Customizable toolbar
- Graph view
- Community plugins
- Themes
- Sidebar pinning
- iCloud vaults
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Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files. It is a second brain, for you, forever. Now available on the go for iOS! Features include: - Customizable toolbar - Pull down quick actions - Graph view - Community plugins - Themes - Sidebar pinning for tablet - iCloud vaults
Screenshots
Verdict
The clearest difference is rating: Moku at 5.0 against Obsidian's 4.5. Obsidian's advantage is ratings volume (2.8K vs 6) and update cadence (every 3 weeks vs every 2 months). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
Moku holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Obsidian has 2.8K ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 50% of Moku's written reviews are positive against 62% of Obsidian's, so the app with the better star average is not the one people write more warmly about.
Moku ships an update every 2 months, Obsidian every 3 weeks. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.
| Parameter | Moku | Obsidian |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | 4.5 (2.8K ratings) |
| Positive reviews | 50.0% of reviews | 62.0% of reviews — better |
| Number of ratings | 6 | 2.8K — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | — | #139 — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 2.2 GB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Liquid Instruments | Dynalist Inc. |
Customer experience
Moku
Obsidian
Bugs and requests
Moku
Not enough reviews yet to summarise bugs or requests.
Obsidian
Reported bugs
3 issues- Sync issues leading to data loss
- Freezing and crashing on mobile devices
- Editing bugs and text input issues
Requested features
5 requests- Improved sorting and organization options
- WYSIWYG editing on mobile
- Better integration with other cloud storage services
- More intuitive onboarding process for new users
- Native mobile widgets and share sheet integration
In-app purchases
Moku
No in-app purchases
Obsidian
No in-app purchases








