Ripple Tank vs OJTLogbook
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ripple Tank
Explore wave phenomena with a realistic ripple tank simulation. Create and save your own experiments to visualize concepts like interference, diffraction, and refraction. Ideal for students and educators seeking an interactive learning tool.
- Wave generation with finger touch
- Demonstrates interference and diffraction
- Visualizes refraction and resonance
- Includes Doppler effect examples
- Create and save custom experiments
Read full descriptionHide full description
A simulation of a ripple tank, or wave tank. Make waves with your finger, or view examples including such wave phenomena as interference, diffraction (single slit, double slit, etc.), refraction, resonance, and the Doppler effect. Create your own experiment and save it for future reference.
OJTLogbook
This app facilitates hands-on work experience, bridging theoretical knowledge with practical application. It helps students and new employees develop essential skills, gain industry-specific knowledge, and understand workplace dynamics for professional growth.
- Hands-on work experience
- Skill development
- Industry-specific knowledge
- Workplace dynamics understanding
- Professional growth cultivation
- Direct supervision and mentorship
Read full descriptionHide full description
OJTLogbook is a vital process that provides students and new employees with hands-on work experience in a real-world environment. It bridges the gap between theoretical learning and practical application, allowing individuals to develop essential skills, gain industry-specific knowledge, and understand workplace dynamics. OJT fosters a deeper understanding of job responsibilities and cultivates professional growth, making it an invaluable component of career development. Through direct supervision and mentorship, trainees can enhance their competencies, adapt to company culture, and become proficient in their roles. This immersive approach to learning not only benefits the trainee but also helps employers build a skilled and capable workforce.
Screenshots
Verdict
The clearest difference is price: OJTLogbook at Free against Ripple Tank's $5.99. OJTLogbook also leads on rating (5.0 vs 4.4) and update cadence (every 5 weeks vs every 7 months). Ripple Tank's advantage is ratings volume (7 vs 2) and iOS requirement (7.0 vs 13.0). On 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
OJTLogbook is free to download; Ripple Tank costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
OJTLogbook holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 7 and 2 respectively.
Ripple Tank ships an update every 7 months, OJTLogbook every 5 weeks. The most recent releases landed on October 23, 2026 and October 11, 2026 respectively.
| Parameter | Ripple Tank | OJTLogbook |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 4.4 (7 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 85.7% of reviews | — |
| Number of ratings | 7 — better | 2 |
| Update frequency | Every 7 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 2 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Falstad.com | Service Professionals Group |
Customer experience
Ripple Tank
OJTLogbook
In-app purchases
Ripple Tank
No in-app purchases
OJTLogbook
No in-app purchases
Questions
Is Ripple Tank free?
Is OJTLogbook free?
Which has better reviews, Ripple Tank or OJTLogbook?
Do Ripple Tank or OJTLogbook have ads?
Which is updated more often, Ripple Tank or OJTLogbook?
Other comparisons
