HEPCon vs Obsidian
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HEPCon
This app provides a structured mobile agenda for scientific and professional conferences, connecting to existing systems. Attendees can access program details offline, build personalized schedules, and receive live updates. Organizers can offer a mobile companion without workflow changes.
- Browse full conference program with filtering
- Offline access to abstracts and session details
- Personalized schedule with reminders
- Bookmark talks and export to calendar
- Follow announcements and live updates
- Access venue information and contacts
- Participate in presentation discussions
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HEPCon is a structured mobile agenda platform for scientific and professional conferences. Designed for complex, multi-track events, it connects directly to existing conference systems such as Indico and delivers a reliable, offline-ready program experience for participants. With HEPCon, attendees can: • Browse the full conference program with advanced filtering • Access abstracts and session details offline • Build a personalized schedule with reminders • Bookmark talks and export them to their calendar • Follow announcements and live updates from organizers • Access venue information, sponsors, and key contacts • Participate in discussions around presentations • Discover featured conferences and explore upcoming events Built for large academic and technical conferences, HEPCon scales to events with hundreds or thousands of participants while keeping the experience simple and fast. For organizers, HEPCon provides a ready-to-use mobile agenda companion without requiring changes to existing workflows. Carry your conference with you — online or offline.
Obsidian
Organize your thoughts and ideas with a powerful knowledge base that utilizes local Markdown files. This app acts as your personal second brain, accessible on your mobile device for seamless note-taking and idea connection.
- Local Markdown file storage
- Customizable toolbar
- Graph view for connections
- Community plugins
- Themes
- iCloud sync
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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 update cadence: HEPCon at every 4 days against Obsidian's every 3 weeks. Obsidian's advantage is review sentiment (62% vs 50%) and chart position (#131 vs unranked). 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.
HEPCon ships an update every 4 days, Obsidian every 3 weeks. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.
| Parameter | HEPCon | Obsidian |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (2.8K ratings) — better |
| Positive reviews | 50.0% of reviews | 62.0% of reviews — better |
| Number of ratings | — | 2.8K — better |
| Update frequency | Every 4 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | — | #131 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 117 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Martin Vassilev | Dynalist Inc. |
Customer experience
HEPCon
Obsidian
Bugs and requests
HEPCon
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
HEPCon
No in-app purchases
Obsidian
No in-app purchases
