Comparison

VizKeeper vs Caverno

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

Head to head
About

VizKeeper

Features
Read full description

Snap anything. Say one line. It's kept. VizKeeper is a calm place for everything you mean to remember — the gig poster on the café wall, the boarding pass in your inbox, the gate code a friend texted, the gift idea you had on a walk. Snap it or say it, and VizKeeper sorts it for you. When you need it, just ask. CAPTURE IN A SECOND • Snap a photo, or share screenshots, links, PDFs, emails, calendar invites and audio from any app — saved right there, without leaving it • Hold the mic to talk — release to save, slide away to cancel • Voice notes keep listening through pauses, up to a minute • Type a quick note when talking isn't an option SORTED FOR YOU • Titles, dates, places and tags are filled in for you • Posters and invites become events with a reminder • Receipts, recipes, plants, books and whiteboards are easy to find again • One calm library you can search in plain words WHAT'S STILL TO DO • Itineraries, visas, bills and school notices turn into a short list: check-in reminders, payment deadlines, things to confirm • Passports, visas, licences, insurance and gift cards remind you well before they expire • Spots what doesn't add up, like a visa that ends before your flight home • Keep each family member's documents under their name ASK ANYTHING YOU SAVED — FREE • One box at the bottom of every page: type or say a question, a reminder or a note • "When is my flight to Lisbon?" "When does Mei's passport expire?" "What did we spend at Harbor Grill?" • Answers come only from your own saves, with the save they came from, and finding is always free • "Remind me to call Mei tomorrow at 9" sets the reminder for you YOUR WALLET, READY AT THE GATE • Boarding passes, tickets, coupons and QR codes re-drawn sharp • Brightness goes up and the screen stays on while a code is open ON IPAD TOO • A sidebar, your list and the save side by side, with keyboard shortcuts and drag and drop PRIVATE BY DESIGN • Payment cards and IDs are locked behind Face ID; lists only show the last four digits • Full card and ID numbers stay encrypted on your iPhone and never go to the cloud • Passwords and codes in private saves never show up in search • Private saves are organized from their text with every number masked on your iPhone first; the photo never leaves it • Turn on "Keep everything on device" and private saves never leave your iPhone FREE TO START Snapping, sorting, finding, reminders and your wallet are free. Free includes 100 saves and, each month, 30 cloud organizes, 10 written summaries, 3 day-by-day trip plans and 30 AI covers; past those, saves are organized on your iPhone and everything you saved stays yours. Plus ($3.99 a month or $29.99 a year, with a 7-day free trial on yearly) removes the limits. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Payment is charged to your Apple Account and can be managed or cancelled in Settings. Terms of Use: https://vizkeeper-50c3a.web.app/terms Privacy Policy: https://vizkeeper-50c3a.web.app/privacy

About

Caverno

Features
Read full description

Caverno is a powerful chat client for locally-hosted LLMs. Connect to Ollama, LM Studio, vLLM, or any OpenAI-compatible API endpoint and start chatting — no cloud required. KEY FEATURES • Any OpenAI-Compatible Server Connect to your own LLM running on localhost or your local network. Supports any endpoint that speaks the OpenAI API format. • Tool Calling (MCP Protocol) Extend your AI with real-time tools — web search, calculator, code execution, and more. Caverno uses the Model Context Protocol to let your LLM take actions. • Session Memory Your assistant remembers your preferences, constraints, and context across conversations. Memory is stored locally and fully under your control. • Voice In & Out Speak your messages and have responses read aloud. Configurable speech rate and auto-read options. • Image Attachments Attach photos from your library to include visual context in your conversations. • Multiple Conversations Create, switch, and manage separate chat threads. All conversations are persisted locally. • Assistant Modes Switch between General and Coding modes for different response styles tailored to your task. • Privacy First No account required. No data sent to third parties. All conversations and memory stay on your device — the only network connection is to the server you configure. GETTING STARTED 1. Install an OpenAI-compatible LLM server (Ollama, LM Studio, etc.) 2. Open Caverno and go to Settings 3. Enter your server URL and select a model 4. Start chatting! Caverno is designed for developers, AI enthusiasts, and anyone who wants full control over their AI assistant.

Screenshots

VizKeeper4 screens
Caverno4 screens

Verdict

The call

The clearest difference is in-app purchases: Caverno at none against VizKeeper's 2. Caverno also leads on update cadence (every 2 days vs every 6 days). VizKeeper's advantage is iOS requirement (15.6 vs 26.0). 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. VizKeeper sells 2 in-app purchases, starting at $3.99 per month. Caverno asks for nothing beyond the download.

UpkeepUpdate frequency

VizKeeper ships an update every 6 days, Caverno every 2 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 5 level
VizKeeper versus Caverno: the parameters behind the verdict, then further details
ParameterVizKeeperCaverno
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 6 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better26.0
Further details — not scored
Size93 MB33 MB
Age rating4+17+
DeveloperYOMOO LLCOsamu Noguchi

In-app purchases

2 purchases

VizKeeper

Subscriptions2
  • Plus (Monthly)$3.991 Month
  • Plus (Yearly)7 Days trial$29.991 Year
None

Caverno

No in-app purchases

Questions

Is VizKeeper free?
VizKeeper is free to download, with in-app purchases available.
Is Caverno free?
Caverno is free to download, with no in-app purchases.
Do VizKeeper or Caverno have ads?
Neither VizKeeper nor Caverno shows ads.
Which is updated more often, VizKeeper or Caverno?
VizKeeper ships an update every 6 days, and Caverno every 2 days. Most recently, VizKeeper was updated on October 30, 2026 and Caverno on October 28, 2026.

Other comparisons