ExtMemo vs SimPulse
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ExtMemo
Capture, secure, and intelligently recall your ideas with an AI-powered external memory system. Offers end-to-end encryption for absolute privacy and seamless collaboration features. Export your data anytime without vendor lock-in.
- Smart Recall AI
- Zero-Knowledge E2EE
- Conflict-Free Collaboration
- Encrypted Team Sharing
- Web and Desktop App
- Markdown Data Export
- AI-Powered Mind Extension
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[+] Unique Info-Chain Architecture - Group related information into sequential chain, not folders. - Connect fragmented information into one organized thread. - Quick Chain Creation — create a new chain and connect it to the current one. - Add daily or milestone updates to track projects end-to-end. - Track height changes and dental visits in chronological chains. - Give each travel day its own note, with plans and bookings in one chain. [+] End-2-End Encrypted, and Searchable - Granular Flexible Encryption: Encrypt an entire note or only its most sensitive content. - Chain-Wide Search: Unencrypted notes can index and search the entire Note Chain. - Stored neither on the server nor on your device: only briefly in memory when needed for decryption. - Flexible Face ID & Fingerprint Protection — for encrypted content, app access, or not at all. [+] Visible Todos In Context - Todos stay in context: Part of your meeting notes, not a separate task list. - Simple by design: Just set a due date. No complicated setup. - Visualize dependencies: See what to do first and what comes next at a glance. - Organize your thoughts: Turn ideas and tasks into a visual mind map. - Track completion automatically: Completion time is recorded automatically. - Stay on track: Get daily reminders for todos due within the next 5 days. - Manage time-sensitive benefits: Never lose track of unused coupons, credits, or expiring offers. [+] Synced to Desktop (Web App), More Powerful, Maximum Efficiency - Work seamlessly across devices: Stay in sync and handle information more efficiently on the desktop. - Import with ease: Bring your notes into ExtMemo with JSON or Markdown. - Export everything: Export your entire note collection in Markdown for easy access and portability. - Explore your knowledge visually: Use the Nebula View to see semantically connected Note Chains at a glance. - Build your todo flow visually: Drag todos into place and connect them with dependencies. [+] Valuable & Private Information, Shared Securely - Share entire chains: Share Note Chains securely with teammates or family members. - Share encrypted content: E2EE-protected information can be shared without giving up privacy. - Everyone adds their own notes: Members can add or update notes without interfering with each other. - Keep information up to date: Multiple people can update the same chain, keeping everyone aligned on the latest status. [+] More Features - AI Assistant — Your intelligent companion for understanding, finding, and managing your information. - Turn off AI Assistant anytime — it won't access your information. - Sign in instantly with Apple or Google — no separate account needed. - Markdown Editor: Write and format notes with Markdown. - Cross-Chain Links: Link chains together and jump between them instantly. - Bookmarks: Save important notes for quick access. - Dark Mode: A comfortable experience in low-light environments. - Flexible E2EE Rules: Choose what to encrypt: manually, everything, or everything except the top note. - Two Visual Styles: Choose between Simple and Classic styles. - Arrange the information in your Info-Chain in any order you like. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
SimPulse
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Sim Pulse helps you manage multiple SIM cards in one place — from CCTV and IoT SIMs to backup numbers, travel SIMs, and personal lines. Save each SIM’s phone number, carrier, label, location, package, cost, notes, and expiry date. The dashboard gives you a clear overview of active, expiring, and expired SIMs, with reminders so you can top up or renew before losing service. Key features: - Manage multiple SIM cards with carrier, label, location, package, cost, and notes - Dashboard for active, expiring, and expired SIMs - Local expiry and billing reminders - Monthly and yearly cost tracking - On-device OCR scanner for SIM images and gallery photos - Guest mode with local storage - Google Sign-In with Firebase/Firestore sync - Light and dark theme support - Premium unlocks unlimited SIMs and removes ads Built for anyone who keeps track of more than one SIM — families, small teams, field devices, CCTV setups, backup phones, and multi-SIM users. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: ExtMemo at none against SimPulse's shown. SimPulse's advantage is update cadence (every 6 days vs every 2 weeks) and iOS requirement (13.0 vs 15.1). On price, 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
Both are free to download. ExtMemo sells 3 in-app purchases, starting at $2.99 per month and SimPulse sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
ExtMemo ships an update every 2 weeks, SimPulse every 6 days. Both last shipped on October 24, 2026.
| Parameter | ExtMemo | SimPulse |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks | Every 6 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 46 MB | 125 MB |
| Age rating | 4+ | 4+ |
| Developer | ExtMemo AI Technology (Beijing) Co., Ltd | Surachet Chutpimai |
In-app purchases
ExtMemo
- Monthly1 Month trial$2.991 Month
- Annually2 Months trial$29.991 Year
- Linked Note AI$3.99
SimPulse
- Sim Pulse Premium Monthly$0.991 Month
- Sim Pulse Premium Yearly$9.991 Year








