Review Downloads & RevenueReview - Spaced Repetition · Google Play
Not in a tracked Google Play top chart right now.
Updated 3 Nov 2026 · rankings refresh through the day
DeveloperBoondoggle Labs
CategoryEducation
PriceFree
Released
Installs50k+
Rating★ 3.9 (520)
Updated–
Content ratingEveryone
Review - Spaced Repetition update history & changes
Last change · 2 events since 19 Apr 2020Full timeline ↓Full timeline · 2 events
- 🆕Review - Spaced Repetition first spotted by AppInsiderUnited States (found via similar)
- 🆕Review - Spaced Repetition released on Google Play
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
3.9 ★
520 ratings
Measured
Review - Spaced Repetition on Google Play
App details
App ID
fred.tasks
Publisher
Fred Pedersen
Publisher country
Ireland
Content rating
Everyone
Review - Spaced Repetition downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
In-app revenue
Worldwide, what users spend in Review - Spaced Repetition before Apple and Google take their fee.
How this is calculated
Not on any Top Grossing chart: monthly active users × spend per user for its category, measured on the charted apps nearest the bottom of the charts.
Business model: In-app purchase-led
How Review - Spaced Repetition makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| Not in a Google Play top chart right now. | ||
Ratings
Google Play, worldwide.
Rating
3.9 ★
520 ratings
Measured
Ratings
520
Measured
Written reviews
10
Measured
About Review - Spaced Repetition
Stop cramming. Start remembering.
Review is a smarter way to study. Unlike flashcard apps, Review works with the material you already have—textbook chapters, lecture notes, video courses, or any topic you want to master.
Just add what you're studying, and the app handles the rest.
───────────────────────
📚 HOW IT WORKS
1️⃣ Add Your Topics
Add anything you want to remember: "Chapter 4: The Nervous System," "Lecture 12: Graph Theory," or "Unit 3: Ancient India." Organize by project for complete control.
2️⃣ Study Your Way
Open your textbook, watch your lecture, or review your notes—however you prefer. Review reminds you what to study and when.
3️⃣ Mark Your Progress
After each session, rate your confidence: Relearn, Hard, Good, or Easy. The algorithm adapts and calculates your perfect next review date.
4️⃣ Build Long-Term Memory
Topics progress from Unseen → Learning → Developing → Mastered. Watch your knowledge grow over time.
───────────────────────
🧠 THE SCIENCE BEHIND IT
Studies show we forget up to 90% of what we learn within a week. This is called the "Forgetting Curve."
Spaced repetition fights this natural decay by scheduling reviews at the exact moment before you forget—so you spend less time on what you already know and more time mastering what you don't.
Review uses a state-of-the-art algorithm that adapts to you, analyzing your review history and topic difficulty to calculate the optimal next review.
───────────────────────
🎯 PERFECT FOR
Students — Remember textbook chapters and lectures for exams
Medical & Law Students — Retain complex topics from Anatomy to Company Law
Self-Learners — Master online courses and programming concepts
Lifelong Learners — Keep any knowledge fresh
───────────────────────
✨ FEATURES
✓ Topics, not flashcards — Review entire chapters and concepts
✓ Smart scheduling — Algorithm calculates optimal review times
✓ Calendar view — See what's due today, this week, and beyond
✓ Projects — Organize topics by subject, course, or book
✓ Progress tracking — Watch topics move from unseen to mastered
✓ Daily reminders — Never miss a study session*
✓ Cloud sync — Pick up where you left off on any device*
✓ Dark mode — Easy on the eyes
✓ Beautiful Material design — Clean, modern interface
*Premium feature
───────────────────────
💎 PREMIUM (ONE-TIME PURCHASE)
Unlock the full power of Review with a single lifetime purchase:
Cloud Backup & Sync across all devices
Daily Reminders for your study tasks
Support indie development
No subscriptions. Pay once, use forever.
───────────────────────
Review is built by a student who wanted to study smarter without converting everything into flashcards. Spaced repetition should work with your existing materials, not replace them.
Questions?
[email protected]
Review is a smarter way to study. Unlike flashcard apps, Review works with the material you already have—textbook chapters, lecture notes, video courses, or any topic you want to master.
Just add what you're studying, and the app handles the rest.
───────────────────────
📚 HOW IT WORKS
1️⃣ Add Your Topics
Add anything you want to remember: "Chapter 4: The Nervous System," "Lecture 12: Graph Theory," or "Unit 3: Ancient India." Organize by project for complete control.
2️⃣ Study Your Way
Open your textbook, watch your lecture, or review your notes—however you prefer. Review reminds you what to study and when.
3️⃣ Mark Your Progress
After each session, rate your confidence: Relearn, Hard, Good, or Easy. The algorithm adapts and calculates your perfect next review date.
4️⃣ Build Long-Term Memory
Topics progress from Unseen → Learning → Developing → Mastered. Watch your knowledge grow over time.
───────────────────────
🧠 THE SCIENCE BEHIND IT
Studies show we forget up to 90% of what we learn within a week. This is called the "Forgetting Curve."
Spaced repetition fights this natural decay by scheduling reviews at the exact moment before you forget—so you spend less time on what you already know and more time mastering what you don't.
Review uses a state-of-the-art algorithm that adapts to you, analyzing your review history and topic difficulty to calculate the optimal next review.
───────────────────────
🎯 PERFECT FOR
Students — Remember textbook chapters and lectures for exams
Medical & Law Students — Retain complex topics from Anatomy to Company Law
Self-Learners — Master online courses and programming concepts
Lifelong Learners — Keep any knowledge fresh
───────────────────────
✨ FEATURES
✓ Topics, not flashcards — Review entire chapters and concepts
✓ Smart scheduling — Algorithm calculates optimal review times
✓ Calendar view — See what's due today, this week, and beyond
✓ Projects — Organize topics by subject, course, or book
✓ Progress tracking — Watch topics move from unseen to mastered
✓ Daily reminders — Never miss a study session*
✓ Cloud sync — Pick up where you left off on any device*
✓ Dark mode — Easy on the eyes
✓ Beautiful Material design — Clean, modern interface
*Premium feature
───────────────────────
💎 PREMIUM (ONE-TIME PURCHASE)
Unlock the full power of Review with a single lifetime purchase:
Cloud Backup & Sync across all devices
Daily Reminders for your study tasks
Support indie development
No subscriptions. Pay once, use forever.
───────────────────────
Review is built by a student who wanted to study smarter without converting everything into flashcards. Spaced repetition should work with your existing materials, not replace them.
Questions?
[email protected]