Simple Memo vs VaultSync for Obsidian
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple Memo
Quickly capture thoughts, tasks, and notes using text or voice input. Send memos directly to your email inbox or integrate them into your Obsidian knowledge base. Designed for speed and simplicity to prevent losing ideas.
- Quick text input
- Voice dictation
- One-tap email sending
- Obsidian integration
- Simple setup
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Catch an idea. Keep it in your own notes. Simple Memo helps you capture short thoughts by voice or text and keep them in your Obsidian workflow or your own email inbox. CAPTURE THE THOUGHT Write or dictate on iPhone. Use a supported Apple Watch or Siri shortcut when your hands are busy. Save ideas, thoughts to revisit, and short notes before you forget them. KEEP IT WHERE YOU ALREADY LOOK Set up Obsidian integration to append notes as Markdown in your selected folder. Send notes to your own email address to read them in your usual inbox. SET UP YOUR DESTINATION Email delivery requires email verification and an internet connection. Obsidian integration requires selecting a destination folder and granting access. Syncing that folder across devices depends on your sync service and settings. Apple Watch and Siri workflows require supported devices and initial setup. Steps and connection requirements vary by capture method. FREE PLAN AND PREMIUM Free to download. The free plan allows up to 3 memo sends per day. Premium removes the sending limit. Saving to Obsidian without sending an email is a Premium feature. See the in-app purchase screen for current pricing, included features, and renewal terms. Subscriptions renew automatically unless canceled before renewal. Manage or cancel your subscription in your Apple account settings. Terms: https://simplememofast.com/terms Privacy: https://simplememofast.com/privacy
VaultSync for Obsidian
Sync your Obsidian notes between your devices and your own server using peer-to-peer technology. This app provides a direct connection without relying on cloud storage, ensuring your data remains private and accessible on your iPhone and iPad.
- Peer-to-peer sync with your own server
- No managed note cloud or third-party storage
- Direct sync into Obsidian's iOS sandbox
- Markdown conflict resolver with side-by-side diffs
- Sync activity timeline and diagnostics
- Optional Cloud Relay for faster incoming sync
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Your Obsidian vault, on your own server, synced to iPhone and iPad — peer-to-peer with Syncthing, no managed note cloud in the middle. VaultSync is the missing iOS bridge for people who already trust Syncthing with their notes. If your vault lives on your Mac, Linux box, NAS, or homeserver, VaultSync lets your iPhone and iPad join that setup — without moving anything into iCloud, Dropbox, or someone else's note-sync service. It syncs straight into Obsidian's iOS sandbox, so you open Obsidian and your vault is just there. WHY VAULTSYNC - Direct peer-to-peer sync between your devices and your own server. - Your Markdown never passes through our servers. We can't read, index, store, or proxy your notes — because they never reach us. - No account. No sign-up. No analytics SDK. No tracking. SET UP IN MINUTES - Pair with your desktop or server by scanning a Syncthing QR code (Device ID). - Pick the vaults you want on this device. - Open Obsidian — your notes are already in place. BUILT FOR REAL VAULTS - Markdown conflict resolver with side-by-side diffs, so you decide which version wins. - Sync activity timeline that shows what moved and when. - A "Sync Issues" panel with clear, actionable diagnostics instead of cryptic errors. - Quiet conflict notifications that update in place instead of spamming a new banner on every sync. HONEST ABOUT iOS SYNC iOS does not let third-party apps run a sync daemon in the background, and we won't pretend otherwise: - Server to iPhone/iPad: near-realtime incoming sync when the optional Cloud Relay delivers a silent push. - iPhone/iPad to server: most reliable when you open VaultSync. Background refresh can help opportunistically, but iOS decides when it runs. CLOUD RELAY (OPTIONAL) A small subscription (monthly or yearly) that sends a silent wake-up push the moment your server has changes, so incoming sync feels instant without opening the app. The relay only ever sees a wake-up signal — your Device ID, an APNs token, and a transaction ID. It never sees your note content, Markdown, filenames, folder names, vault structure, or any metadata. It needs a free Docker sidecar ("vaultsync-notify") on your server. VaultSync works fully without Cloud Relay — the relay only makes incoming sync faster. SUPPORT VAULTSYNC (OPTIONAL) Two one-time contributions — Small and Big — for people who want to support the project. They are a tip jar. They unlock nothing, and the app stays completely functional without them. REQUIREMENTS - iPhone or iPad on iOS/iPadOS 18 or later. - Syncthing already running on a Mac, Linux machine, NAS, or homeserver. - Obsidian installed on your device (for the vault to open into). PRIVACY & OPEN SOURCE VaultSync is peer-to-peer by design. There is no managed note cloud, no telemetry, and nothing to sign into. The app is open source under the MPL-2.0 license — read the code, build it yourself, or contribute. VaultSync is an independent project and is not affiliated with, endorsed by, or sponsored by Obsidian or Syncthing. "Obsidian" and "Syncthing" are trademarks of their respective owners.
Screenshots
Verdict
The clearest difference is review sentiment: Simple Memo at 90% against VaultSync for Obsidian's 33%. Simple Memo also leads on update cadence (every 2 days vs weekly) and iOS requirement (16.0 vs 18.0). 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. Simple Memo sells 2 in-app purchases, starting at $2.99 per month and VaultSync for Obsidian sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Simple Memo ships an update every 2 days, VaultSync for Obsidian weekly. The most recent releases landed on September 22, 2026 and September 18, 2026 respectively.
| Parameter | Simple Memo | VaultSync for Obsidian |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 90.0% of reviews — better | 33.3% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 15 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Yurika, K.K. | Umut Erdem |
Customer experience
Simple Memo
VaultSync for Obsidian
In-app purchases
Simple Memo
- Simple Memo Premium$2.991 Month
- Simple Memo Annual Premium$29.991 Year
VaultSync for Obsidian
- Cloud Relay$1.991 Month
- Cloud Relay$14.991 Year
- Small Contribution$2.99
- Big Contribution$9.99





