Keep Track vs Science Explorer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Keep Track
This app allows you to log and monitor daily, weekly, or monthly activities, habits, and data. Visualize your progress with list, table, or calendar views, and use home screen widgets for quick access. Create custom notebooks for any tracking need.
- Daily, weekly, monthly tracking
- Personal log, database, habit tracker
- List, table, calendar views
- Home screen widgets
- Customizable notebooks
- Streak stats
- Year view
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Keep track of anything that happens on a daily, weekly, or monthly basis.... like your activities, your workouts, your weight, your eating habits, your kids sports scores, hours worked, business expenses, and miles traveled. Use it as a personal log, database, or habit tracker. View notes in a list view, a table view, or a calendar view to quickly see habits and progress a month or a year at a time. You can also use widgets to see your items on your phone's home screen. Just create a notebook for anything you want and start tracking your data. No monthly subscription! A one-time In-App Purchase gets you: * More notebook colors to choose from * Ability to choose which notebooks are displayed on the home page * Streak stats * Year view * Beta features
Science Explorer
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Science Explorer - the smart way to master science! Built for the curriculum, Science Explorer covers Year 7 through Year 10 with 8 topics, 118 levels, and 1,950+ real science questions. YEAR 7-8 TOPICS (10 levels each): - Chemistry — Atoms, elements, reactions & the periodic table (220+ questions) - Biology — Cells, body systems, ecosystems & genetics (200+ questions) - Physics — Forces, energy, electricity & motion (200+ questions) - Earth Science — Rocks, plate tectonics, weather & space (200+ questions) - Scientific Method — Experiments, variables, data & lab safety (200+ questions) YEAR 9-10 TOPICS (20 levels each): - Chemistry II — Bonding, moles, stoichiometry & organic chemistry (250+ questions) - Biology II — DNA, evolution, human physiology & disease (250+ questions) - Physics II — Waves, electromagnetism, nuclear & quantum (250+ questions) - New Space & Universe topic — 80 questions across 8 levels LEARN FROM EVERY MISTAKE: Every question includes a detailed explanation. Correct answers auto-advance so you keep your flow. Wrong answers show the solution — tap to review, then move on. SMART PLACEMENT TEST: A quick placement quiz on first launch determines your starting level automatically. GAMIFIED LEARNING: - Earn 1-3 stars on every level - Build answer streaks for bonus XP - Level up and unlock 30 achievements - Compete on the global leaderboard - Complete the daily challenge for extra rewards 1,950+ QUESTIONS across 110 levels — every quiz draws from a large pool so it's different every time. All aligned to the Curriculum. Created by A Star Learner — helping students achieve their best.
Screenshots
Verdict
The clearest difference is in-app purchases: Science Explorer at none against Keep Track's 1. Science Explorer also leads on iOS requirement (15.1 vs 17.6). On price, update cadence, ads and device support 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
Both are free to download. Keep Track sells 1 one-off in-app purchase. Science Explorer asks for nothing beyond the download.
Keep Track ships an update every 2 weeks, Science Explorer every 9 days. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.
| Parameter | Keep Track | Science Explorer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (28 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 28 — better | — |
| Update frequency | Every 2 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 2 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Dustin Wiens | Dung Ba Nguyen |
In-app purchases
Keep Track
- Premium Upgrade$4.99
Science Explorer
No in-app purchases









