Comparison

Neptune Odyssey vs Better Keep

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

Head to head
About

Neptune Odyssey

Features
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Odyssey helps you choose the right AI model for the jobβ€”every time. Your needs change throughout the day, and different models excel at different tasks. Odyssey makes it easy to compare leading models in one place so you can optimize for quality, speed, and cost. Whether you’re drafting content, troubleshooting code, or researching competitors, Odyssey helps you quickly match the best model to your workflowβ€”so you can ship faster, improve output, and avoid overpaying. What you can do with Odyssey: Compare AI models side-by-side for the same prompt or task Match models to use-cases (writing, coding, research, etc.) Optimize for cost and performance with clearer tradeoffs Explore rankings/leaderboards to see how models stack up Odyssey brings the full Odysseytech.ai experience to your iPhone and iPadβ€”now in a fast, mobile-friendly app. Privacy policy: https://www.odysseytech.ai/privacy Terms of use: https://www.odysseytech.ai/terms

About

Better Keep

Features
Read full description

Capture a quick idea, plan your day, or give a longer note room to grow. Better Keep brings rich-text notes, checklists, photos, sketches, and voice recordings together in one private notes app. A PLACE FOR EVERYDAY IDEAS Write a journal entry, collect study notes, plan a project, or keep a shopping list handy. Add headings, lists, links, text colors, and highlights when a note needs more structure. Attach photos and sketches to keep the details together. FIND WHAT YOU NEED Organize notes with labels, folders, colors, and pinned cards. Search your collection, archive completed notes, and set reminders for things you want to return to. WRITE OFFLINE An account is required. After signing in, create, edit, search, and organize local notes without an internet connection. Core local note-taking is free. CONTINUE ON ANOTHER DEVICE WITH PRO Pro adds real-time, end-to-end encrypted cloud sync across your approved devices. Note titles, content, and supported attachments are encrypted on your device before syncing. Some operational metadata, such as labels and timestamps, remains outside the encrypted payload; see betterkeep.app/security for details. VOICE NOTES YOU CAN FIND AGAIN Record audio alongside your notes. On supported native devices, an on-device Whisper model can turn recordings into searchable text. A model download needs a connection, transcription accuracy varies, and voice transcription is not available on Web. FREE AND PRO Free includes unlimited local notes, rich-text editing, checklists, labels, folders, reminders, offline use after sign-in, and up to five PIN-locked notes. Pro adds encrypted cloud sync and unlimited locked notes. Check the current price and billing options in the app before subscribing. BRING YOUR EXISTING NOTES Import a supported Google Takeout archive on your device. Review the import report for skipped or unsupported items before moving your full collection. Use Better Keep on iPhone, iPad, and Mac and Web. Some features vary by platform. Source code is publicly available under CC BY-NC 4.0. Start with one note. Make room for the ideas you want to keep.

Screenshots

Neptune Odyssey4 screens
Better Keep4 screens

Verdict

The call

The clearest difference is update cadence: Better Keep at every 4 days against Neptune Odyssey's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neptune Odyssey sells 6 in-app purchases, starting at $19.99 per month and Better Keep sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Neptune Odyssey ships an update every 2 months, Better Keep every 4 days. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.

Scorecard1 real difference Β· 5 level
Neptune Odyssey versus Better Keep: the parameters behind the verdict, then further details
ParameterNeptune OdysseyBetter Keep
PriceFreeFree
Update frequencyEvery 2 monthsEvery 4 days β€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac β€” better
Requires iOS15.115.0 β€” better
Further details β€” not scored
Size49 MB53 MB
Age rating17+12+
DeveloperNeptune AI LLCFoxbiz Software Private Limited

In-app purchases

6 purchases

Neptune Odyssey

Subscriptions6
  • Monthly Pro access$19.991 Month
  • Monthly Pro+ access$49.991 Month
  • Monthly Pro max access$99.991 Month
Show 3 more
  • Annual Pro access$191.991 Year
  • Annual Pro+ access$479.991 Year
  • Annual Pro max access$949.991 Year
2 purchases

Better Keep

Subscriptions2
  • Better Keep Pro Monthly$2.991 Month
  • Better Keep Pro Yearly$20.991 Year

Questions

Is Neptune Odyssey free?
Neptune Odyssey is free to download, with in-app purchases available.
Is Better Keep free?
Better Keep is free to download, with in-app purchases available.
Do Neptune Odyssey or Better Keep have ads?
Neither Neptune Odyssey nor Better Keep shows ads.
Which is updated more often, Neptune Odyssey or Better Keep?
Neptune Odyssey ships an update every 2 months, and Better Keep every 4 days. Most recently, Neptune Odyssey was updated on October 12, 2026 and Better Keep on October 24, 2026.

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