Comparison

Atlantis vs OffNote

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

Head to head
About

Atlantis

This AI assistant prioritizes your data privacy with on-device processing and end-to-end encryption. It helps manage daily routines, find information across files, and organize conversations, syncing seamlessly between Mac and iPhone.

Highlights
  • On-device processing for data privacy
  • End-to-end encryption
  • Sync across Mac and iPhone
  • Context control and management
  • Sub-chats for organized conversations
  • Personalized daily briefings
  • Voice and text control
Features
Read full description

We use AI to be more productive in handling daily routines. But AI is truly an effective assistant only when it understands our context and priorities. Are you comfortable giving it access to your files, email, calendar and other data for that? At Roia Labs, we built Atlantis with personal data privacy at its core, using On-Device Processing with End-to-End Encryption to keep your data yours. WHAT'S IMPORTANT TO KNOW BEFORE INSTALLING ATLANTIS The iPhone app won't work without syncing with the installed app on Mac. DISCOVER THE ADVANTAGES OF LOCAL AI • Unlimited requests since tokens are generated by your device, not third-party servers • Data privacy since all processing and storage is done on your device, not in the cloud • More relevant AI responses since it works exclusively with your data A BIT MORE ABOUT ATLANTIS FEATURES • Context control and management: Delete, edit, and add what you consider important to know • Sync across devices: Mac as home server, iPhone as portable communicator with your AI assistant • Sub-chats: No more mixing context within a single chat, branch by topics and return to previous discussions without mixing AI memory • Chat grouping: Organize chats by project or group to keep things tidy • Control with text or voice: Send requests and play back AI responses however you prefer TOOLS FOR DAILY ROUTINE OPTIMIZATION Important: Atlantis will need access to your files and services to use these features. • Get personalized briefings to set priorities for the day • Instantly find needed information across all your files • Take notes and come back to them when needed • Create reminders so you don't have to keep everything in your head • Get notified when emails that actually matter arrive SYSTEM REQUIREMENTS macOS 15 Sequoia and newer with M1 chip and newer iOS 18 and newer ABOUT DEVELOPER Roia Labs Ltd, London, United Kingdom Website: roia.io/atlantis Privacy Policy: roia.io/privacy Terms of Use: roia.io/terms For questions and feedback: support@roialabs.com

About

OffNote

Record voicenotes and transcribe speech to text entirely offline on your device. This app prioritizes privacy by keeping all audio and transcripts local, never uploading or analyzing your data. It supports multiple languages and importing existing audio/video files for transcription.

Highlights
  • 100% offline and private
  • Voice to text transcription on device
  • Import audio and video files
  • Multilingual speech-to-text (25+ languages)
  • Long recordings supported
  • No sign-ups or subscriptions
Features
Read full description

OffNote is the most secure, offline voice-to-text app for iPhone. Record voicenotes, transcribe speech to text, and keep everything stored only on your device — never uploaded, never analyzed, never shared. If you’re looking for an alternative to cloud-based tools like speech-to-text AI notes, lecture recorders, or online transcription apps, OffNote is built for privacy first. Perfect for ideas, journaling, ai meeting notes, interviews, lecture recorder, and sensitive notes. Works anywhere — even on flights or with no signal. Why OffNote Is Different 100% Offline & Private Your audio and transcripts never leave your iPhone No servers, no analytics, no tracking Works completely offline — remote areas, airplane mode, anywhere Voice Notes → Text (On Device) Record clear voice memos optimized for transcription Convert voice to text free, without uploading audio Long recordings supported — record for minutes or hours Import Audio & Video Files Transcribe existing files offline: MP3, M4A, WAV MP4, MOV Multilingual Speech-to-Text Accurate transcription in 25+ languages Ideal for international record meetings, study notes, and travel Free to Download and Use No sign-ups. No subscriptions. Common Questions Can I use OffNote without an internet connection? Yes. OffNote works completely offline. Your audio never leaves your device, so it works on flights, in remote areas, and without a data connection. Is there a maximum length for recordings? No. You can record for as long as you want. Longer recordings simply take more time to transcribe on your device. When does transcription happen—during recording or after? Transcription begins after you finish recording. You’ll see the text appear as it’s being generated. Where are my recordings and transcripts kept? Everything is stored locally on your device. We don’t have access to your data. What happens to my data if I delete the app? All recordings and transcripts are deleted. Since OffNote doesn’t use cloud storage, there are no backups—be sure to export anything important. Why doesn’t OffNote generate AI summaries? To protect your privacy. OffNote doesn’t send data to external AI services. You’re free to copy your transcripts and use any AI tool you trust. Can I transcribe audio or video files I already have? Yes. You can import existing audio or video files and transcribe them completely offline. What file formats are supported for import? MP3, M4A, WAV, MP4, and MOV files are supported. Does OffNote work while traveling or in airplane mode? Yes. OffNote is fully functional in airplane mode and while traveling.

Screenshots

Atlantis4 screens
OffNote4 screens

Verdict

The call

The clearest difference is price: Atlantis at Free against OffNote's $2.99. OffNote's advantage is in-app purchases (none vs 3). On rating, ratings volume, update cadence and ads 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

Atlantis is free to download; OffNote costs $2.99 up front. Atlantis sells 3 in-app purchases, starting at $14.99 per month. OffNote asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Atlantis against 5.0 for OffNote. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. Both last shipped on October 30, 2026.

Scorecard3 real differences · 7 level
Atlantis versus OffNote: the parameters behind the verdict, then further details
ParameterAtlantisOffNote
PriceFree — better$2.99
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings11
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionPaid — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.6 — better
Further details — not scored
Size26 MB9 MB
Age rating4++4
DeveloperRoia Labs LtdShraddha Sojitra

Customer experience

Atlantis

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

OffNote

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Atlantis

Subscriptions3
  • Monthly7 Days trial$14.991 Month
  • 3 Months7 Days trial$34.993 Months
  • Annual7 Days trial$99.991 Year
None

OffNote

No in-app purchases

Questions

Is Atlantis free?
Atlantis is free to download, with in-app purchases available.
Is OffNote free?
OffNote costs $2.99, with no in-app purchases.
Which has better reviews, Atlantis or OffNote?
Atlantis and OffNote are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Atlantis or OffNote have ads?
Neither Atlantis nor OffNote shows ads.
Which is updated more often, Atlantis or OffNote?
Atlantis ships an update weekly, and OffNote weekly. Most recently, Atlantis was updated on October 30, 2026 and OffNote on October 30, 2026.

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