Comparison

Flex vs Notebook

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

Head to head
About

Flex

Features
Read full description

Flex-Ability Concepts is the leader in curved walls. This app allows precise arc length and dome calculations for your upcoming projects. Product specifications, cut sheets and more are available at a glance. You can also find distributors & product representatives across the country. We're here to help you learn the easy & fast techniques for framing curved walls, ceilings, soffits, arches, and more!

About

Notebook

Features
Read full description

Notebook: AI Voice Notes from audio to insight Turn hours of talk into minutes of clarity. Xnote transforms recordings, PDFs, and text into smart, structured notes. Perfect for meetings, lectures, and big ideas How it works Record or Upload - Capture any audio or import files instantly. AI Summaries - Get clear notes, action items, and insights in seconds. Organize & Share - Keep everything in one place, ready when you are. Why Notebook: AI Voice Notes? Forget messy transcripts - get clean, actionable notes that work for you. Stay focused in the moment. Notebook: AI Voice Notes takes care of the rest. Built for clarity For thinkers, students, and professionals who turn ideas into results. Listen less. Understand more. Act faster. Subscription Information: Notebook: AI Voice Notes offers flexible premium plans for full access: - Weekly - Unlock all premium features. Billed weekly. - Annual - Get a discount by paying yearly. Billed annually. Payment & Auto-Renewal Terms - Payment is charged to your Apple ID account at purchase confirmation. - Subscriptions renew automatically unless canceled at least 24 hours before the renewal date. - Manage or cancel anytime in Settings β†’ Apple ID β†’ Subscriptions. - If you subscribe before a free trial ends, the remaining trial period is forfeited. Privacy Policy: https://docs.google.com/document/d/1JkFBsCRke3zGDArVykCci7OQ_x_XVAUTng6cmZICc7c/edit?usp=sharing Terms of Use: https://docs.google.com/document/d/1JkFBsCRke3zGDArVykCci7OQ_x_XVAUTng6cmZICc7c/edit?usp=sharing Terms of Use (EULA): Apple’s Standard EULA https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Flex4 screens
Notebook4 screens

Verdict

The call

The clearest difference is in-app purchases: Flex at none against Notebook's 2. Notebook's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement 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. Notebook sells 2 in-app purchases, starting at $14.99 per month. Flex asks for nothing beyond the download.

UpkeepUpdate frequency

Flex ships an update every 3 months, Notebook every 2 weeks. The most recent releases landed on August 5, 2026 and August 17, 2026 respectively.

Scorecard2 real differences Β· 4 level
Flex versus Notebook: the parameters behind the verdict, then further details
ParameterFlexNotebook
PriceFreeFree
Update frequencyEvery 3 monthsEvery 2 weeks β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhoneiPhone, iPad β€” better
Requires iOS17.6 β€” better18.0
Further details β€” not scored
Size23 MB24 MB
Age rating4+4+
Developersean ELLISONStanislav Ponamorenko

In-app purchases

None

Flex

No in-app purchases

2 purchases

Notebook

Subscriptions2
  • Monthly access3 Days trial$14.991 Month
  • Annual access$59.991 Year

Questions

Is Flex free?
Flex is free to download, with no in-app purchases.
Is Notebook free?
Notebook is free to download, with in-app purchases available.
Do Flex or Notebook have ads?
Neither Flex nor Notebook shows ads.
Which is updated more often, Flex or Notebook?
Flex ships an update every 3 months, and Notebook every 2 weeks. Most recently, Flex was updated on August 5, 2026 and Notebook on August 17, 2026.

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