Cognito vs Field Guide
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Cognito
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Cognito turns any topic into a personalized, bite-sized learning plan. Learn through quick facts, multiple-choice questions, quizzes, and written-answer exercises designed to strengthen active recall and long-term understanding. With Cognito, you can: โข Create learning plans for almost any topic โข Learn key facts before testing your knowledge โข Complete short, focused lessons โข Receive scheduled learning reminders โข Track accuracy, completed lessons, and daily streaks โข Identify your strongest topics and areas needing reinforcement โข Discover a new topic-related fact through the home-screen widget โข Review lesson sources for deeper learning Whether you are studying for school, developing a professional skill, or exploring something new, Cognito helps you learn consistently in manageable daily sessions.
Field Guide
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Most facts go in one ear and out the other. Field Guide is built so they don't. Each lesson takes two or three minutes and follows a simple loop proven to build memory: you predict an answer first, you get taught one clear idea, then you're quizzed on it. Guessing before you learn is the trick that makes it stick. Then spaced review brings each lesson back days later, right before you'd forget, so it moves into long-term memory instead of fading by tomorrow. WHAT'S INSIDE Hundreds of lessons across science, history, money, health, art, engineering and more A predict โ teach โ check loop that's actually fun Spaced review that schedules itself A streak to keep you honest Clean, calm, no-fluff design. No ads, no clutter. Browse by subject, get a fresh lesson each day, or hit Random and learn something new right now. Field Guide works fully offline, and new lessons arrive automatically.
Screenshots
Verdict
The clearest difference is ads: Field Guide at none against Cognito's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Cognito | Field Guide |
|---|---|---|
| Price | Free | Free |
| Update frequency | โ | Monthly |
| Ads | Yes | No โ better |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 18.2 | 17.0 โ better |
| Further details โ not scored | ||
| Size | 51 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Adrian Ponce | 4fives Entertainment, LLC |
In-app purchases
Cognito
No in-app purchases
Field Guide
No in-app purchases









