Comparison

Moku vs Obsidian

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 16 professional-grade instruments
  • Customizable test setups
  • Wireless iPad control
  • Real-time data streaming
  • Cloud and email data sharing
  • Demo mode with simulated signals
Features
Read full description

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.

About

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.

Highlights
  • Local Markdown file storage
  • Customizable toolbar
  • Graph view
  • Community plugins
  • Themes
  • Sidebar pinning
  • iCloud vaults
Features
Read full description

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

Obsidian4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 4 level
Moku versus Obsidian: the parameters behind the verdict, then further details
ParameterMokuObsidian
PriceFreeFree
Rating5.0 (6 ratings) — better4.5 (2.8K ratings)
Positive reviews50.0% of reviews62.0% of reviews — better
Number of ratings62.8K — better
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank—#139 — better
DevicesiPadiPhone, iPad, iPod — better
Requires iOS17.015.6 — better
Further details — not scored
Size2.2 GB39 MB
Age rating4+4+
DeveloperLiquid InstrumentsDynalist Inc.

Customer experience

Moku

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Obsidian

All ratings2,803 ratings
Positive85.4%
Neutral4.0%
Negative10.6%
Written reviews1,354 reviews
Positive62.0%
Neutral12.0%
Negative26.0%

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

None

Moku

No in-app purchases

None

Obsidian

No in-app purchases

Questions

Is Moku free?
Moku is free to download, with no in-app purchases.
Is Obsidian free?
Obsidian is free to download, with no in-app purchases.
Which has better reviews, Moku or Obsidian?
Moku is rated higher. Moku averages 5.0 out of 5 from 6 ratings, while Obsidian averages 4.5 from 2.8K ratings.
Do Moku or Obsidian have ads?
Neither Moku nor Obsidian shows ads.
Which is updated more often, Moku or Obsidian?
Moku ships an update every 2 months, and Obsidian every 3 weeks. Most recently, Moku was updated on November 3, 2026 and Obsidian on November 7, 2026.

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