Comparison

Ductalator vs Note Taker

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

Head to head
About

Ductalator

Features
Read full description

Have you ever used the quintessential Trane Ductulator for your HVAC duct size calculations. Well here is a super easy to use Ductalator App that simplifies duct sizing calculations with the spin of a wheel. Simply enter two of the four parameters (Flow rate, Pressure drop, Velocity of Duct size) and the other values are calculated automatically for you. If you are involved in designing HVAC systems from small toilet exhaust through to multi-roomed variable air volume systems, this is the app for you. Download it and give it a free try. "Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/" "Privacy Policy: http://www.azitechgames.com/ductalator.html"

About

Note Taker

Record conversations, convert speech to text, and generate AI-powered summaries with key takeaways and action items. Easily search transcripts and ask questions about your recordings for quick insights. Ideal for professionals, students, and anyone needing to capture and recall spoken information.

Highlights
  • One-tap audio recording
  • Speech to text transcription
  • AI summaries with key points
  • Ask questions about recordings
  • Searchable transcripts
  • Export and share notes
Features
Read full description

Turn meetings, lectures, interviews and long-form content into notes you can use right away. NoteAI helps you record audio or import files, then turns speech into readable transcripts, AI summaries, key takeaways and action items. Stay present while you listen, then review the important details later. What you can do: • Record audio or import an audio file • Transcribe speech into clear, readable notes • Create AI summaries with key points, decisions and next steps • Turn notes into tasks and manage them in a to-do list • Ask questions about a recording, PDF or YouTube transcript • Import selectable PDFs and turn them into structured notes • Paste a YouTube link to generate a transcript and summary • Translate summaries and transcripts into supported languages • Organize notes in folders • Export or share summaries and transcripts as text or PDF • Share or export the original audio when needed Built for: • Team meetings and client calls • University lectures and study sessions • Interviews, research and field notes • Podcasts, webinars and YouTube videos • Voice memos, ideas and long conversations Keep transcripts, summaries, chats, tasks and folders organized in one place, so every recording is easier to review and share. Subscription details: • Subscribe for unlimited access to premium features. • Payment will be charged to your Apple Account at confirmation of purchase. • Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. • You can manage or cancel your subscription in App Store account settings. Support: [noteai.team@gmail.com](mailto:noteai.team@gmail.com) Privacy Policy: https://www.freeprivacypolicy.com/live/c8f05793-637b-4a19-8ae9-156538fde3e2 Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

Ductalator4 screens
Note Taker4 screens

Verdict

The call

The clearest difference is iOS requirement: Ductalator at 16.0 against Note Taker's 18.0. On price, update cadence, ads and in-app purchases 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. Ductalator sells 2 in-app purchases, starting at $1.99 per month and Note Taker sells 8 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Ductalator ships an update every 10 days, Note Taker every 2 weeks. Both last shipped on October 25, 2026.

Scorecard1 real difference · 8 level
Ductalator versus Note Taker: the parameters behind the verdict, then further details
ParameterDuctalatorNote Taker
PriceFreeFree
Rating—5.0 (4 ratings) — better
Number of ratings—4 — better
Update frequencyEvery 10 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better18.0
Further details — not scored
Size10 MB47 MB
Age rating4+4+
DeveloperDavid MephamNataliia Litvinova

In-app purchases

2 purchases

Ductalator

Subscriptions2
  • Monthly Subscription$1.991 Month
  • Annual Subscription1 Month trial$6.991 Year
8 purchases

Note Taker

Subscriptions8
  • Premium$4.997 Days
  • Premium$7.997 Days
  • Premium2 variants$9.991 Month
Show 5 more
  • Premium$14.991 Month
  • Premium$19.991 Month
  • Premium$69.991 Year
  • Premium$79.991 Year
  • Premium$89.991 Year

Questions

Is Ductalator free?
Ductalator is free to download, with in-app purchases available.
Is Note Taker free?
Note Taker is free to download, with in-app purchases available.
Do Ductalator or Note Taker have ads?
Neither Ductalator nor Note Taker shows ads.
Which is updated more often, Ductalator or Note Taker?
Ductalator ships an update every 10 days, and Note Taker every 2 weeks. Most recently, Ductalator was updated on October 25, 2026 and Note Taker on October 25, 2026.

Other comparisons