RockSpin vs ChemOasis
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RockSpin
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RockSpin brings the polarizing microscope to your fingertips. Designed for geology students, researchers, and educators, this app lets you explore petrographic thin sections with full 360-degree rotation. Compare PPL and XPL views, inspect mineral markers, explore 3D crystal structures, browse a curated rock image catalog, and save favorites across your account. Every thin section is available at 300px at no charge. Pro ($4.99/month or $49.99/year) unlocks 500px and 700px viewing. Subscriptions auto-renew and can be cancelled in Apple ID settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://rockspin.app/privacy
ChemOasis
An interactive platform for students to learn chemistry and other sciences with tools for concept explanation, practice questions, and guided learning. Instructors can use it to check answers and create worksheets.
- Interactive science learning
- Chemistry concept explanation
- Practice question generation
- Worksheet creation
- Guided learning modules
- Chemical structure exploration
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ChemOasis™ is an interactive learning and teaching platform designed to help students learn chemistry and other scientific subjects while providing useful educational tools for instructors. ChemOasis brings specialized learning experiences together in one platform. Students can access subject-focused ChemOasis Professors and choose learning activities based on their course level and needs. ChemOasis Chemistry includes tools for: • Explaining chemistry concepts • Generating practice questions and MCQs • Creating worksheets • Practicing chemistry problems • Checking student answers • Guided learning through “Teach Me Until I Understand” • Exploring chemical structures and reactions • Supporting multiple levels of chemistry, including Foundations of Chemistry, General Chemistry, and Organic Chemistry The platform also provides access to additional subject-focused learning experiences, including biology, neuroscience, physics, mathematics, and immunology, as available within ChemOasis. ChemOasis is designed around a simple goal: make scientific learning more interactive, structured, visual, and accessible. Created by Manoj K. Manna, Ph.D. Founder & Creator, ChemOasis™
Screenshots
Verdict
The clearest difference is in-app purchases: ChemOasis at none against RockSpin's 3. ChemOasis also leads on update cadence (daily vs every 2 days). RockSpin's advantage is iOS requirement (16.0 vs 26.5). On price, 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. RockSpin sells 3 in-app purchases, starting at $9.99 per month. ChemOasis asks for nothing beyond the download.
RockSpin ships an update every 2 days, ChemOasis daily. The most recent releases landed on October 4, 2026 and October 22, 2026 respectively.
| Parameter | RockSpin | ChemOasis |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 days | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 26.5 |
| Further details — not scored | ||
| Size | 81 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | WOOHYUN JEON | Manoj Manna |
In-app purchases
RockSpin
- Pro Monthly$9.991 Month
- Pro Yearly$99.991 Year
- 1,000 Credits$14.99
ChemOasis
No in-app purchases







