Carnets is a standalone, offline-first Jupyter notebook implementation for Python development on iOS.
Product velocity
Steady
Daily rank 🇺🇸
#90
Developer Tools · free
Sentiment
4.6
311 reviews
Nemesis
Spck Editor
The App DNA
What makes this app unique?
Users hire Carnets to perform data science and research tasks on mobile hardware without needing an active internet connection or cloud server access.
For Students, researchers, and data scientists who require mobile access to Jupyter notebooks for Python development and data analysis.
What does it look like?
Key features
Runs Python code and Jupyter notebooks locally using an embedded interpreter without internet connectivity.
Provides file system access to manage notebooks, link external data, and write files directly on the device.
Includes packages like Numpy, Matplotlib, Pandas, and Sympy out of the box.
How much does it cost?
The developer utilizes a free, open-source model with a secondary app variant to segment users based on specific library requirements.
Velocity
Steady developmentShow more...
5 versions in history. Development pace: steady.
Who built it?
Nicolas Holzschuch
4 apps tracked · Developer Tools
a-Shell
a-Shell mini
Carnets - Jupyter (with scipy)User Sentiment
What do users think recently?
The recent review mood reads mixed. Users appreciate mobile implementation of desktop-grade jupyter notebooks enables productive coding sessions on ipad hardware.
How are ratings & reviews evolving?
What users say, by theme
- Mobile implementation of desktop-grade Jupyter notebooks enables productive coding sessions on iPad hardware
- Kernel initialization errors and application instability disrupt the coding workflow following recent system updates
49 of 49 recent reviews analyzed · high confidence · Mixed overall
Read the full review analysisUnlock 1 user request, each backed by review evidence.
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Competitive landscape for Carnets - Jupyter
How's the Developer Tools market?
Carnets maintains a stable presence in the Developer Tools category, currently ranking #83 Free in the US. The consistent ranking across global markets suggests a dedicated user base, though the lack of monetization signals suggests a non-commercial growth trajectory.
Read the market outlookThe rivals identified
By Zeb Zhao
With over 13,000 reviews and a high release cadence, Spck Editor is the dominant mobile-first IDE for developers seeking a comprehensive coding environment on iOS.
- Provides a full-featured code editor with Git integration and local server support for web development
- Offers a robust multi-file project management system that exceeds the scope of single-file notebook tools
- Maintains a high-velocity update cycle with five releases in the last six months to ensure compatibility
Unlock the head-to-head verdict: where this rival wins, and where it loses.
Access the full report for freeThe Analyst's Read
Key takeaways for Carnets - Jupyter
Where is it heading?
The mobile coding market is shifting toward high-velocity, general-purpose IDEs, leaving specialized tools like Carnets exposed if they cannot maintain kernel stability. The current focus on bug fixes is necessary to prevent user attrition, but the lack of advanced library support limits the app's long-term growth potential.
- Kernel crashes following OS updates disrupt the coding workflow, which forces power users to seek more stable desktop-based alternatives.
- The offline-first implementation remains a strong differentiator for students, ensuring the app retains a specific niche despite technical instability.
The SWOT
- Offline-first architecture eliminates cloud dependency
- Native file system access enables professional-grade workflows
- Expand library support for machine learning frameworks
- Implement full-screen toggle for tablet screen real estate
Next best moves
Ship kernel stability patches because kernel initialization errors are the top-cited complaint → reduce churn
The counter-intuitive read
The app's lack of advanced machine learning support is a strategic moat…
Read the full takeFeature gaps
Git integration (available in Spck Editor but absent here) +1
Since the last report: The app has refined its market positioning toward data science while experiencing a decline in stability and user sentiment due to OS-level kernel issues.
Bottom line
Carnets provides a unique offline-first value for researchers, but kernel instability threatens its core utility, so the PM should prioritize stability fixes to secure the existing user base before attempting library expansion.
Unlock 3 critical frictions, 2 market threats and the analyst’s take.
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