Data Collection vs Chemistutor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Data Collection
This app allows researchers to capture accelerometer, gyroscope, and magnetometer data directly from their iOS devices. It time stamps the captured data and includes Apple's enhanced device motion for research or experimentation.
- Capture accelerometer data
- Capture gyroscope data
- Capture magnetometer data
- Time-stamped data
- Includes enhanced device motion data
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This app was developed for researchers so that they may capture accelerometer, gyroscope, and magnetometer data directly from their iOS device to use for research or play around with. The data is time stamped and the data from Apple's enhanced device motion is included for reference.
Chemistutor
Master AP Chemistry with this comprehensive study tool. It offers readings, diagrams, and example problems aligned with the AP curriculum. Learn anytime, anywhere, without distractions, to achieve success in a challenging course.
- AP Chemistry curriculum coverage
- 100+ concise lessons
- Readings, diagrams, and example problems
- No ads or in-app purchases
- Learn anytime, anywhere
- iPhone and iPad compatible
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Your guide to a FIVE! AP Chemistry is a difficult, fast paced course. Alleviate your stress and find success through Chemistutor’s readings, diagrams, example problems, and more. This app is specifically tailored to the AP Chemistry curriculum, specifically addressing topics taught in the course. What’s more, you can do it ANYTIME, ANYWHERE! For students, by students: the creators of this app got 5s on the AP Chemistry Exam. NO DISTRACTIONS - No ads - No paywalls - No in-app purchases - No subscriptions COVERS ENTIRE AP CHEM CURRICULUM - 15 units - Fundamentals - Atomic Structure - Electron Configuration - Periodic Trends - Thermochemistry - Lewis Structure - Chemical Bonding - Gas Laws - Solids & Liquids - Solutions - Chemical Kinetics - Chemical Equilibrium - Acids & Bases - Thermodynamics - Electrochemistry LEARN ON THE GO - Any time, anywhere - Compatible on iPhone & iPad - Learn in the car, on the train, etc. 100+ CONCISE AND INFORMATIVE LESSONS - Lessons specifically target concepts used in AP Chem - Readings - Diagrams - Example problems
Screenshots
Verdict
The clearest difference is price: Chemistutor at Free against Data Collection's $0.99. Chemistutor also leads on rating (4.0 vs 3.1) and review sentiment (76% vs 61%). Data Collection's advantage is update cadence (every 2 months vs every 12 months). On ratings volume, ads, in-app purchases 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
Chemistutor is free to download; Data Collection costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Chemistutor holds the better App Store score, 4.0 against 3.1. Both are backed by a comparable volume of ratings — 10 and 27 respectively. Written reviews point the same way: 61% of Data Collection's written reviews are positive against 76% of Chemistutor's.
Data Collection ships an update every 2 months, Chemistutor every 12 months. The most recent releases landed on September 17, 2026 and August 12, 2026 respectively.
| Parameter | Data Collection | Chemistutor |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.1 (10 ratings) | 4.0 (27 ratings) — better |
| Positive reviews | 60.9% of reviews | 76.2% of reviews — better |
| Number of ratings | 10 | 27 — better |
| Update frequency | Every 2 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 1 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Chris Wozny | Jonathan Davis Miller |
Customer experience
Data Collection
Chemistutor
In-app purchases
Data Collection
No in-app purchases
Chemistutor
No in-app purchases
Questions
Is Data Collection free?
Is Chemistutor free?
Which has better reviews, Data Collection or Chemistutor?
Do Data Collection or Chemistutor have ads?
Which is updated more often, Data Collection or Chemistutor?
Other comparisons
