Comparison

Lumo vs Greyer

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

Head to head
About

Lumo

Features
Read full description

Lumo is a conversational AI memory agent for couples, families, and friends. Save moments by chatting, recall them with citations, and share a Memory Jar with the people you love. KEY FEATURES • Conversational save — Tell your AI Memory Agent any moment worth keeping. No forms, no folders. Just chat. • Cited recall — Ask anything ("What did Sarah say about coffee?") and get answers backed by your real memories. • Shared Memory Spaces — Build a Memory Jar with your partner or family. Multi-person, real-time, persistent. • Self-hosted RAG backend — Your memories run on our own infrastructure. We do not sell or train on your data. • Tools you can see — Every AI action shown as a chip. Full transparency. WHO IT'S FOR Couples capturing daily moments. Families preserving stories. Solo thinkers who want a second brain that talks back. PRIVACY FIRST Your messages may be sent to Anthropic Claude or Gemini for understanding, but never used to train their models. Full Privacy Policy at memorycopilot.sanva.tk/privacy. SUBSCRIPTION • Free: 50 memories, 10 chats/day, 1 personal space • Pro Monthly $9.99 / Pro Yearly $79.99 (33% off) / Lifetime $149 (first 500 only): 5,000 memories, 500 chats/day, 5 spaces, share with up to 5 people, 7-day free trial Subscriptions auto-renew unless cancelled at least 24h before period end. Manage in your Apple ID settings. LEGAL End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: memorycopilot.sanva.tk/privacy Subscription Terms: memorycopilot.sanva.tk/subscription-terms Additional Terms of Service: memorycopilot.sanva.tk/terms SUPPORT Email support@sanva.tk. We answer within 48 hours.

About

Greyer

This AI assistant helps you capture thoughts, organize notes, and manage tasks using voice commands. It integrates with your email and calendar to provide timely suggestions and reminders, keeping your day under control.

Highlights
  • Voice-based idea capture
  • Structured notes and to-dos
  • Customizable reminders
  • Email and calendar integration
  • Proactive suggestions
  • Smart cap compatibility
Read full description

Greyer is your proactive AI assistant for turning everyday thoughts into organized notes, tasks, and reminders. Speak naturally to capture ideas hands-free, wherever they happen. Greyer helps structure what you say so it’s easier to remember, organize, and act on. Connect your email and calendar to stay ahead of what matters. Greyer can surface important messages, upcoming meetings, and timely suggestions—before anything slips through the cracks. With Greyer, you can: • Capture thoughts using your voice • Turn ideas into structured notes and to-dos • Create reminders for the things that matter • Connect your email and calendar • Receive proactive, timely suggestions • Capture on the go with a compatible smart cap Your thoughts, captured. Your day, under control. Your mind, organized. Some features require account permissions, compatible services, or hardware purchased separately.

Screenshots

Lumo4 screens
Greyer4 screens

Verdict

The call

The clearest difference is in-app purchases: Greyer at none against Lumo's 6. Lumo's advantage is update cadence (every 2 days vs every 10 days) and iOS requirement (15.1 vs 17.0). On price, ads 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. Lumo sells 6 in-app purchases, starting at $3.99 per month. Greyer asks for nothing beyond the download.

UpkeepUpdate frequency

Lumo ships an update every 2 days, Greyer every 10 days. The most recent releases landed on September 18, 2026 and September 20, 2026 respectively.

Scorecard3 real differences · 6 level
Lumo versus Greyer: the parameters behind the verdict, then further details
ParameterLumoGreyer
PriceFreeFree
Rating5.0 (4 ratings) — better
Number of ratings4 — better
Update frequencyEvery 2 days — betterEvery 10 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size65 MB71 MB
Age rating4+12+
Developer炜腾 张Dhruv Prajapati

In-app purchases

6 purchases

Lumo

Subscriptions5
  • Family Seats$3.991 Month
  • Plus Monthly$4.991 Month
  • Pro Monthly7 Days trial$9.991 Month
Show 2 more
  • Plus Yearly$39.991 Year
  • Pro Yearly7 Days trial$79.991 Year
One-time1
  • Pro Lifetime$149.00
None

Greyer

No in-app purchases

Questions

Is Lumo free?
Lumo is free to download, with in-app purchases available.
Is Greyer free?
Greyer is free to download, with no in-app purchases.
Do Lumo or Greyer have ads?
Neither Lumo nor Greyer shows ads.
Which is updated more often, Lumo or Greyer?
Lumo ships an update every 2 days, and Greyer every 10 days. Most recently, Lumo was updated on September 18, 2026 and Greyer on September 20, 2026.

Other comparisons