Comparison

Readwise vs Underfoot

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

Head to head
About

Readwise

This app helps you retain more of what you read by centralizing and revisiting your highlights from various reading platforms. It uses spaced repetition and active recall techniques to improve memory and offers features like tagging, note-taking, and OCR for physical books.

Highlights
  • Synchronize highlights from multiple platforms
  • Daily review habit via app and email
  • Spaced repetition and active recall
  • Tag, note, and search highlights
  • OCR for paper book highlights
  • Convert highlights to flashcards
Features
Read full description

Readwise helps you get the most out of what you read by making it fun & easy to revisit your highlights from all your favorite reading platforms in one place. Quickly synchronize your highlights from Kindle, Apple Books, Instapaper, Pocket, Medium, Goodreads, and even paper books. Then start building a daily review habit using the app and daily email. By reviewing your highlights every day, you'll retain dramatically more and you'll finally stop forgetting all the details from books you just finished! --- “Readwise is my favorite new service this year. Save highlights from Kindle, Instapaper, and now tweets... one of the best long-term personal learning tools I’ve come across.” — Caleb Hicks “Besides my Kindle, Readwise has been the most influential tech for improving my reading process.” — Blake Reichmann “If you use Kindle or Instapaper or just enjoy keeping and reading highlights, please sign up to Readwise. It will become one of your cherished services.” — Christopher Galtenberg --- ACTUALLY USE YOUR HIGHLIGHTS Highlighting is great, but why bother if you're never going to see any of your highlights again? Readwise makes it easy to quickly liberate all your highlights into one place, ensuring that you'll actually see and use them, including highlights from: • Amazon Kindle • Apple iBooks • Instapaper • Pocket • Medium • Goodreads • Twitter • Physical Books (using OCR) • Manual Input • CSV Upload STOP FORGETTING WHAT YOU READ How often do you finish a book, only to forget the key ideas two weeks later? We don't remember things by just reading them once. Readwise solves this problem using scientifically proven learning techniques called Spaced Repetition and Active Recall. Readwise resurfaces the right highlights at the right times using a daily email and an app. Readwise even makes it possible to convert your best highlights into flashcards for added retention. TAG, NOTE, SEARCH, AND ORGANIZE With your highlights all in one place, Readwise enables you to organize and connect these ideas in new ways. Use search to find a highlight instantly; use tag to organize highlights within your library; use notes to add your own annotations. HIGHLIGHT PAPER BOOKS Readwise also makes it possible to take highlights from your physical books and papers using your phone’s camera. Just snap a pic, highlight with your finger, and have your favorite highlights saved forever. --- If you are not already a Readwise subscriber, you can get started immediately with a 30-day free trial with no credit card upfront. At the end of the trial, you will not be charged unless you choose to subscribe to Readwise Full or Readwise Lite. Price may vary by location. Manage your subscription from your dashboard. --- Support: Check out readwise.io/faq or email us at hello@readwise.io Privacy Policy: https://readwise.io/tos Terms of Service: https://readwise.io/privacy

About

Underfoot

Features
Read full description

Underfoot is a field guide for anyone who can't walk past a bug without stopping to look. Point a phone at an insect, spider, or under-a-rock critter, and Underfoot tells you what it is — then it becomes a specimen card in your collection, illustrated by hand like something out of an old field notebook. Not a checkbox. Not a badge. A card you're proud of. HOW IT WORKS • Point, identify, collect. Photograph a bug and get an honest identification — and when the app isn't certain, it says so, narrows to the group, and shows you a real reference photo to check against, so you learn instead of just being told. A wrong first guess is never a dead end: you can decline it and search the guide yourself. • Hand-drawn specimen cards. Over 2,000 U.S. insects, spiders, and under-a-rock critters — roly-polies, millipedes, snails, centipedes — each with its own ink-and-watercolor illustration. • Collect anything. Found something rare that isn't a pre-made card? Collect it as a "wild find" and the app draws its card on the spot. • Where to look. Every entry has a plain-language habitat tip, plus real parks and trails near you to go hunt. • In season. See which bugs are out right now in your area, so there's always a reason to go outside. QUIET BY DESIGN Underfoot is a general-audience app operated through a parent. There are no accounts to create, no login, no email, no ads, and no behavioral tracking. A profile is just a nickname and a chosen mark — never a full name, an email, or a photo of your child. The only thing sent off the device is the bug photo itself, sent once to Google's identification service to name the insect — never anything about who took it. Location is coarse and optional, and your exact position is never stored. Browsing your collection works fully offline, and one tap deletes everything. The outdoors is the product. Underfoot is built to be picked up, used for a few minutes, and put back in a pocket — so you get back to turning over rocks. FREE & PRO Collect up to 10 species for free. Underfoot Pro unlocks the entire guide — unlimited collecting — for $2.99/month or $24.99/year. Auto-renewable; cancel anytime in Settings. No weekly billing, no tricks. Restore Purchase is right on the paywall. Made by someone who takes the curiosity seriously. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://underfoot.web.app/privacy

Screenshots

Readwise4 screens
Underfoot4 screens

Verdict

The call

The clearest difference is device support: Readwise at 3 against Underfoot's 1. Readwise also leads on iOS requirement (15.5 vs 17.0). On price, 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. Readwise sells 8 in-app purchases, starting at $4.99 per month and Underfoot sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 8 level
Readwise versus Underfoot: the parameters behind the verdict, then further details
ParameterReadwiseUnderfoot
PriceFreeFree
Rating4.8 (1.5K ratings) — better—
Positive reviews72.3% of reviews—
Number of ratings1.5K — better—
Update frequencyEvery 2 weeks—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.5 — better17.0
Further details — not scored
Size110 MB100 MB
Age rating12+4+
DeveloperReadwise, IncJason Brannon

Bugs and requests

Readwise

Reported bugs

3 issues
  • Frequent app crashes
  • Sync failures with certain accounts
  • Unreliable highlight capture

Requested features

5 requests
  • Add support for more reading apps
  • Improve sync and import capabilities
  • Introduce more customization options
  • Enhance search and organization tools
  • Develop a more intuitive mobile interface

Underfoot

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Readwise

Subscriptions8
  • Readwise Lite Monthly$4.991 Month
  • Readwise Lite Monthly$6.991 Month
  • Readwise Full Monthly Plan$8.991 Month
Show 5 more
  • Readwise Full Monthly$12.991 Month
  • Readwise Lite Yearly$52.991 Year
  • Readwise Lite Yearly$66.991 Year
  • Readwise Full Yearly$94.991 Year
  • Readwise Full Yearly$119.991 Year
2 purchases

Underfoot

Subscriptions2
  • Underfoot Pro$2.991 Month
  • Underfoot Pro Annual$24.991 Year

Questions

Is Readwise free?
Readwise is free to download, with in-app purchases available.
Is Underfoot free?
Underfoot is free to download, with in-app purchases available.
Do Readwise or Underfoot have ads?
Neither Readwise nor Underfoot shows ads.

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