Best Heptabase Alternative
Heptabase is for visual research on desktop. Nemos is for living in your second brain on iPhone.
Disclosure: Nemos is our product. We've aimed to compare fairly and acknowledge Heptabase's strengths. We encourage you to try both and decide for yourself.
Summary
Heptabase has limitations that matter. Nemos is the best alternative because it saves 15+ content types (vs Heptabase's limited scope), auto-organizes everything with on-device AI, and works fully offline. It's free to download on the App Store.
Why people look for Heptabase alternatives
Heptabase (YC W22) is a visual knowledge base built around an infinite canvas with cards and bidirectional links. Best-in-class for visual researchers and PhD-level deep work. Mobile app exists but is read/light-edit only.
Heptabase strengths
- ●Best-in-class visual whiteboard / canvas for research
- ●Bidirectional links between cards
- ●PDF + highlight workflow for academic research
- ●YC W22 batch, $1.7M seed (HOF, Kleiner Perkins)
- ●Cross-platform native apps (most of the AI-native 5)
- ●Strong for learning workflows (spaced repetition concepts)
Heptabase limitations
- ●No free tier — only 7-day trial, kills casual onboarding
- ●Mobile app is read/light-edit, not full capture-and-organize
- ●Whiteboard UX doesn't translate to small phone screens
- ●Premium+ tier is $40.49/mo — Most expensive AI tier in PKM
- ●Cloud-only AI — passes GPT-4 cost to user via tier escalation
- ●Desktop-canvas-first product philosophy
- ●No Apple Watch, no Live Activities, no widgets
- ●Small team (~8 employees per Latka 2024)
Why Nemos is the best Heptabase alternative
Heptabase vs Nemos — Full comparison
Mobile Experience
| Feature |  Nemos | Heptabase |
|---|---|---|
| Full-feature editing on iPhone | ✓ | Read / light-edit only |
| Apple Watch companion | ✓ | ✕ |
| Live Activities | ✓ | ✕ |
| Lock-screen widgets | ✓ | ✕ |
| Screenshot-first capture | ✓ | ✕ |
Pricing
| Feature | Nemos | Heptabase |
|---|---|---|
| Free tier | Unlimited saves | 7-day trial only |
| Entry Pro tier | $8.99/mo | $8.99/mo (annual) |
| AI access tier | Free — on-device | $13.49-40.49/mo |
| Cost for unlimited AI | $0 forever | $485/year (Premium+) |
Workflow
| Feature | Nemos | Heptabase |
|---|---|---|
| Visual canvas / whiteboard | ✕ | ✓ |
| Auto-organization | ✓ | ✕ |
| On-device AI | ✓ | ✕ |
| Works offline (incl. AI) | ✓ | Notes only |
Who should use what?
Choose Heptabase if
Heptabase is best for PhD students, academic researchers, and visual thinkers who do their primary work on desktop and need an infinite canvas with cards and links. If you primarily capture and organize on iPhone, Heptabase's mobile app is a read-only afterthought.
Choose Nemos if
You save more than one type of content — screenshots, links, notes, voice memos, PDFs — and want it all automatically organized and searchable in one place. 15+ content types, zero manual effort, all on-device for complete privacy.
Pricing
Nemos
Free
Unlimited saves, all content types, full search
Pro $8.99/mo — advanced AI, priority sync
Heptabase
No free tier
7-day trial only
Pro $8.99/mo · Premium $13.49/mo · Premium+ $40.49/mo (annual)
Frequently Asked Questions
Is Nemos a Heptabase alternative?+
Heptabase vs Nemos: which is better for research?+
Why does Heptabase have no free tier?+
Can Heptabase run AI on-device?+
More Comparisons
See how Nemos compares to other popular apps:
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