Comparison

Imprint vs iDesat by Envivia

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

Head to head
About

Imprint

This app offers bite-sized visual lessons on a wide range of topics, from psychology to finance. Master complex ideas quickly with elegant visuals and retain knowledge through daily quizzes. Explore an expanding catalog of courses, quick reads, and book summaries.

Highlights
  • Bite-sized visual lessons
  • Daily retention quizzes
  • Save and review insights
  • Courses on various topics
  • Visual guides to books
  • Rapidly expanding catalog
Features
Read full description

Imprint is your visual guide to the world's most important knowledge. - Master essential topics in psychology, philosophy, history, finance, leadership, business, health, science, technology and more. - Understand complex concepts quickly, with elegant visuals that clarify key ideas and help you stay focused. - Take challenging daily quizzes that help you retain what you've learned. - Save and review the insights and visuals that matter most to you. - Complete a chapter in two minutes or less, in bite-sized sessions throughout your day. - Explore our rapidly expanding catalog, featuring: COURSES - Philosophy and the Meaning Life with Professor John Kaag - Finance and Investing: Essential Concepts for Wealth-Building - Interpersonal Dynamics: The Psychology of Human Relationships - Principles of Productivity: Skills and Strategies for Getting Things Done QUICK READS - The Freudian Mind: Id, Ego, Superego - mRNA Vaccines and the Future of Immunity - The Imprint Guide to Gerrymandering VISUAL GUIDES TO BESTSELLING BOOKS - Sapiens by Yuval Noah Harari - Atomic Habits by James Clear - The Beginner's Guide to the Stock Market by Matthew Kratter ...and much more! -- SUBSCRIPTION PRICING AND TERMS: Imprint offers an auto-renewing yearly subscription and an auto-renewing monthly subscription which allows you full access to all of the content in our catalog for as long as you maintain an active subscription. These prices are for United States customers. Pricing in other countries may vary and actual charges may be converted to your local currency depending on your country. Payment will be charged to the credit card connected to your iTunes account at the time of initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24 hours prior to the end of the current period end date, and the cost of the renewal will be listed. You can manage your subscription and auto-renewal can be turned off by going to your Account Settings after the purchase. Read more about our Privacy Policy here: https://bit.ly/2UzFLvt Read more about our Terms of Service here: https://bit.ly/2Jc1rZm

About

iDesat by Envivia

Features
Read full description

[Master Your Dive Strategy] iDesat is a premium digital guide dedicated to planning and analyzing air dives, with or without decompression stops. Designed to support divers throughout their training and progression, the app combines clear educational content, technical analysis, and planning tools to help them better understand the impact of each choice before entering the water. [What iDesat Enables You to Do] • Understand Gradient Factors (GF) and consider a setting consistent with the planned profile • Choose your parameters for a no-decompression dive or a dive with decompression stops • Analyze Time To Surface (TTS) and the margins associated with the profile • Assess your gas consumption (RMV – Respiratory Minute Volume), reserves, and gas endurance • Explore scenarios to anticipate and their impact on ascent or gas consumption • Build a strategy suited to your experience, your dive team, and the expected conditions [A True Educational Companion] iDesat is designed for: Divers who want to prepare their air dives more effectively Recreational divers who want to better understand their decompression choices Experienced divers who want to analyze their margins and scenarios Instructors seeking a structured educational resource The app does more than display results: it helps you understand, compare, anticipate, and adjust your planning choices. [Important] iDesat is an educational planning aid. It does not replace recognized training, the procedures of your training agency, or a dive computer. Every dive plan must be adapted to actual conditions, the divers’ experience, and the dive team's procedures. [Multilingual] Available in French, English, Spanish, Italian, and German. [About iDesat Premium] • Payment will be charged to your iTunes account at confirmation of purchase. • The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. • Your account will be charged for renewal within 24 hours prior to the end of the current period. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription. • Subscriptions may be managed by the user, and auto-renewal may be turned off in the iTunes account settings after purchase. Privacy Policy
https://envivia.fr/policy/iDesat/privacy/ Terms of Use – EULA:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Imprint4 screens
iDesat by Envivia4 screens

Verdict

The call

The clearest difference is ads: iDesat by Envivia at none against Imprint's shown. Imprint's advantage is update cadence (every 4 days vs every 2 weeks) and chart position (#5 vs unranked). On price, in-app purchases, device support and iOS requirement 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. Imprint sells 5 in-app purchases, starting at $15.99 per month and iDesat by Envivia sells 1 in-app purchase, starting at $5.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Imprint ships an update every 4 days, iDesat by Envivia every 2 weeks. The most recent releases landed on November 4, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 8 level
Imprint versus iDesat by Envivia: the parameters behind the verdict, then further details
ParameterImprintiDesat by Envivia
PriceFreeFree
Rating4.8 (60K ratings) — better—
Positive reviews38.2% of reviews—
Number of ratings60K — better—
Update frequencyEvery 4 days — betterEvery 2 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
Best chart rank#5 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size215 MB72 MB
Age rating12+12+
DeveloperPolywise, Inc.ENVIVIA

Bugs and requests

Imprint

Reported bugs

4 issues
  • Freezing or crashing issues
  • Inconsistent load times
  • Syncing problems between devices
  • Unfinished or incomplete courses

Requested features

5 requests
  • Sync progress across devices
  • Dark mode option
  • More diverse content topics
  • Ability to download content offline
  • Better organization of saved content

iDesat by Envivia

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Imprint

Subscriptions5
  • Monthly Subscription3 variants$15.991 Month
  • Imprint premium$29.991 Year
  • Yearly Subscription7 Days trial3 variants$74.991 Year
Show 2 more
  • Yearly Subscription7 Days trial2 variants$99.991 Year
  • Yearly Subscription (Discount)7 Days trial$99.991 Year
1 purchases

iDesat by Envivia

Subscriptions1
  • Premium$5.991 Year

Questions

Is Imprint free?
Imprint is free to download, with in-app purchases available.
Is iDesat by Envivia free?
iDesat by Envivia is free to download, with in-app purchases available.
Do Imprint or iDesat by Envivia have ads?
Imprint shows ads; iDesat by Envivia does not.
Which is updated more often, Imprint or iDesat by Envivia?
Imprint ships an update every 4 days, and iDesat by Envivia every 2 weeks. Most recently, Imprint was updated on November 4, 2026 and iDesat by Envivia on October 25, 2026.

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