Comparison

SiloNotes vs Vellum

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

Head to head
About

SiloNotes

Organize client information with structured categories, visualize connections with a knowledge graph, and capture insights via voice transcription. Secure your sensitive data with biometric authentication and access instant client briefings.

Highlights
  • Structured client information
  • Visual knowledge graph
  • Voice-to-intelligence transcription
  • Biometric data vault
  • Instant client briefings
  • Audit trail
Features
Read full description

SiloNotes is a privacy-first client intelligence engine built for consultants, freelancers, account managers, and anyone who needs to remember what matters about their clients. REMEMBER EVERYTHING THAT MATTERS Stop losing critical details in messy notes. SiloNotes automatically organizes client information into structured categories — Decisions, Red Flags, Preferences, and Promises — so you never walk into a meeting unprepared. VISUAL KNOWLEDGE GRAPH See the connections between your clients at a glance. The interactive knowledge graph clusters each client's data into clear visual maps, revealing patterns and relationships you'd otherwise miss. VOICE-TO-INTELLIGENCE Speak your notes after a meeting and SiloNotes transcribes and extracts key entities automatically. Capture insights in seconds while they're still fresh. BIOMETRIC VAULT Your client data is sensitive. SiloNotes protects it with Face ID authentication, keeping confidential information locked away from prying eyes. All data stays on your device. CLIENT BRIEFINGS Get instant briefings before any client meeting. See recent notes, flagged items, and key decisions in one clean view — no digging through old emails or documents. AUDIT TRAIL Track every interaction with a transparent access log. Know exactly when and how your data was accessed. SILONOTES PRO Unlock the full engine with a Pro subscription: • Unlimited clients and notes • Full Knowledge Graph visualization • Voice-to-Silo transcription • All entity categories (Preferences, Promises, and more) • Priority support PRICING • Monthly: $4.99/month • Yearly: $34.99/year (save 41%) • Both plans include a 1-week free trial PRIVACY BY DESIGN • All data stored locally on your device • Face ID protection • No cloud uploads, no tracking, no ads • Your intelligence stays yours Terms of Use: https://sites.google.com/view/silonotes Privacy Policy: https://sites.google.com/view/silonotes

About

Vellum

Features
Read full description

Vellum Journal is a calm, focused space for capturing thoughts, notes, and everyday moments. Write without distraction and organize your entries into topics. Use tags, notes, and Markdown to give your ideas structure while keeping everything easy to find. CORE FEATURES • Create entries and organize them into topics • Add tags and notes • Write with Markdown • Search your library • Export your content • Keep your library on your device by default VELLUM PRO Vellum Pro is available as a one-time in-app purchase and adds: • Cross-device library sync through your private iCloud database • Notion workspace integration and export A separate Vellum account is not required. Sync starts only after you enable it on a device signed in to iCloud. Content is sent to Notion only when you choose to export it to your connected workspace.

Screenshots

SiloNotes4 screens
Vellum4 screens

Verdict

The call

The clearest difference is update cadence: Vellum at weekly against SiloNotes's fortnightly. On price, ads, in-app purchases and device support 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. SiloNotes sells 2 in-app purchases, starting at $4.99 per month and Vellum sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SiloNotes ships an update fortnightly, Vellum weekly. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 8 level
SiloNotes versus Vellum: the parameters behind the verdict, then further details
ParameterSiloNotesVellum
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.6 — better18.6
Further details — not scored
Size5 MB44 MB
Age rating4+4+
DeveloperBiosync LLC四扬 叶

In-app purchases

2 purchases

SiloNotes

Subscriptions2
  • SiloNotes Pro7 Days trial$4.991 Month
  • SiloNotes Pro7 Days trial$34.991 Year
1 purchases

Vellum

One-time1
  • Vellum pro lifetime$2.99

Questions

Is SiloNotes free?
SiloNotes is free to download, with in-app purchases available.
Is Vellum free?
Vellum is free to download, with in-app purchases available.
Do SiloNotes or Vellum have ads?
Neither SiloNotes nor Vellum shows ads.
Which is updated more often, SiloNotes or Vellum?
SiloNotes ships an update fortnightly, and Vellum weekly. Most recently, SiloNotes was updated on October 7, 2026 and Vellum on October 25, 2026.

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