Moku vs O'der stack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Moku
This application serves as the control center for a professional-grade test and measurement device, offering 12 integrated instruments. It enables real-time data streaming and experiment control wirelessly from an iPad, with options to save and share findings.
- 12 professional-grade instruments
- Wireless iPad control
- Real-time data streaming
- Intuitive multi-touch interface
- Data saving and sharing
- Demo mode for simulation
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Please note: This app, Moku:Lab, only supports Moku:Lab devices running legacy firmware. Search for our newer app, simply called Moku:, to get support for latest firmware, more hardware models, more instruments, and new ways to take full advantage of the Moku hardware. ----- Moku:Lab is a revolutionary all-in-one test and measurement device for professional scientists and engineers. Moku:Lab comes with 12 professional-grade instruments: • Oscilloscope • Spectrum analyzer • Waveform generator • Phasemeter • Data logger • Lock-in amplifier • PID controller • Frequency response analyzer • Digital filter box • Arbitrary waveform generator • FIR filter builder • Laser lock box With high-speed analog inputs and outputs combined with reconfigurable FPGA hardware, the digital signal-processing capabilities are virtually limitless. The Moku:Lab 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.
O'der stack
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O'der stack is a scientific calculator that is precise for up to 38 digits and is highly flexible. It can be used for various purposes, from learning to professional use, and has many functions that are convenient when mastered. The formulas described can be saved together with the results of the calculations and easily shared among members. Also, labels and memos can be set for formulas as well as each item that makes up the formulas. For example, by adding the label "radius" to "50" in 2 x 50 x π, it is possible to make the meaning of the formula even clearer. It is also perfect for entering explanations of formulas as memos and using them as tools to assist in learning. O'der stack offers two plans, the Pro plan which offers unlimited use of all functions, as well as the Free plan which makes it usable as an easy-to-use scientific calculator. —Functions— 1. A powerful editing function that allows partial overwriting of values without erasing the formula 2. Label and memo functions to support the understanding of formulas 3. A clipboard function that allows formulas to be pasted in notebooks, etc. 4. Setting the precision of calculations from 0 digits to 38 digits 5. Setting units (degrees/radians) for trigonometric functions 6. Setting the format of displaying results of calculations (normal notation, scientific notation, and percentage notation) 7. Basic functions (exponentiation and nth root) 8. Undo function —Pro plan— Please download O'der stack and try out the Pro plan for free for seven days. In addition to all the functions in the Free plan, the Pro plan allows for the activation of even more convenient functions. 1. Functions to save and load formulas and calculation histories 2. Function to share formulas and calculation histories 3. A sub-formula function that allows for the breakdown into several formulas and simple entry 4. 18 types of versatile and widely-used functions 5. 652 highly precise numerical and physical constants and observed values 6. Setting the format of displaying results of calculations (binary, octal, hexadecimal) - Each item can be selected from 8bit, 16bit, 24bit, 32bit, 64bit and 128bit. - Supports negative values and decimal points. - Negative values are displayed in complement. After the free trial has ended, if you would like to continue to use the Pro plan, a purchase of a non-autorenew-subscriptionis required. For a subscription, you can choose either a monthly purchase or yearly purchase, and the yearly purchase allows you to enjoy a discount worth two months of monthly purchases. Payment will be charged to your Apple ID account at the confirmation of purchase. If you purchase a plan during the effective period, it will be extended by the number of days of the purchased plan from the end date. The plan is effective on all devices linked to the purchased Apple ID account. Privacy policy https://ictfractal.github.io/official/PrivacyPolicy.html Terms of service https://ictfractal.github.io/official/AppTerms.pdf Disclaimer ICT Fractal Inc. does not guarantee the accuracy, credibility, and compatibility of the results of calculations and information provided through this app. Furthermore, it does not bear the responsibility for direct or indirect damages that might occur through this app.
Screenshots
Verdict
The clearest difference is in-app purchases: Moku at none against O'der stack's 3. Moku also leads on iOS requirement (9.0 vs 15.6). O'der stack's advantage is device support (3 vs 1). On price, update cadence and ads 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. O'der stack sells 3 one-off in-app purchases. Moku asks for nothing beyond the download.
Moku ships an update every 2 months, O'der stack every 3 months. The most recent releases landed on September 24, 2026 and October 1, 2026 respectively.
| Parameter | Moku | O'der stack |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (9 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 220 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Liquid Instruments | ICT Fractal Inc. |
In-app purchases
Moku
No in-app purchases
O'der stack
- Free trial for 7 days.Free
- Activate for 1 month.$0.99
- Activate for year.$9.99









