Shockwave Therapy vs Eye Charts
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Shockwave Therapy
This app offers detailed treatment instructions for 10 common conditions using Extracorporeal Shockwave Therapy (ESWT). It includes energy data, contraindications, and allows users to log treatment notes and energy levels for specific conditions.
- Treatment instructions for 10 conditions
- Energy data logging
- Contraindication information
- 3D body view
- Patient education tool
- Treatment notes
Read full descriptionHide full description
For users of Extracorporal Shockwave Therapy machines, this app provides detailed treatment instructions (focussed ESWT) for 10 common conditions, plus energy data, contraindications and the ability to keep energy level data and treatment notes for your most common conditions. Conditions covered are Achillodynia, Calcific tendonitis, Golfers Elbow, Patellar tendonitis, plantar fasciitis, pseudoarthrosis, tennis elbow, tibial stress syndrome, trigger points and trochanteric tendonitis. General guidelines and contraindications are also covered. This app features a 3D view of the body, plus individual treatment guidelines with clear images for PiezoWave ESWT treatments. A great way to educate patients and support this powerful therapy!
Eye Charts
Measure and track distant vision with optically precise optotypes. Supports various eye chart types and custom test distances. Useful for early detection of vision issues and monitoring progression.
- Optically precise optotypes
- Multiple eye chart types (Snellen, Tumbling E, Landolt C, ETDRS, HOTV, Numbers, Shapes)
- Customizable test distances (meters and feet)
- Mirror and Bluetooth keyboard testing modes
- Manual and auto-scoring test modes
- Visual acuity progression tracking
- LogMAR scoring
Read full descriptionHide full description
Eye Charts is a vision testing app independently proven most accurate in a peer-reviewed study (JAMA Ophthalmology). Trusted by parents and clinicians to check, record, and track children's vision since 2018. Early detection of myopia allows you to take preventive action, seek medical advice promptly, and prevent pseudomyopia from worsening into myopia or stop nearsightedness from deteriorating further. INDEPENDENTLY EVALUATED ACCURACY Eye Charts was previously published as Visual Acuity Charts and was independently evaluated in a peer-reviewed study published in JAMA Ophthalmology (https://pmc.ncbi.nlm.nih.gov/articles/PMC7809609/). MORE THAN A DIGITAL EYE CHART Unlike paper charts that can fade, warp, or become memorized, Eye Charts presents randomized optotypes for each test. This helps reduce variability when repeating measurements over time. Choose from: • Snellen • ETDRS • Landolt C • Tumbling E • HOTV • Numbers • Shapes Charts use LogMAR-based sizing and support multiple visual acuity notations, including: • Fraction • LogMAR • MAR • Decimal • VAS FLEXIBLE TESTING Test at different distances to suit small rooms, hallways, clinics, schools, or other available spaces. Eye Charts is self-illuminated on iPhone and iPad, so chart visibility is less dependent on ambient room lighting. Screen brightness can be adjusted, including for longer testing distances such as 6 metres. THREE WAYS TO TEST 1. Doctor and patient — in a clinic or at home 2. Self-test with a mirror — wear an eye patch; the effective testing distance is doubled 3. Self-test with a Bluetooth keyboard — from a few meters away SEE TRENDS, NOT JUST SNAPSHOTS Record test results for individual subjects and visualize changes over time with simple graphs. This makes it easier to notice: • Gradual changes in visual acuity • Stability following an intervention • Differences between visits or repeated tests For parents, this provides a convenient way to monitor a child's visual acuity over time. For healthcare professionals, it provides a practical record for routine screening and follow-up. IMPORTANT MEDICAL NOTICE Eye Charts is a visual acuity screening and measurement tool. It does not replace an examination by an optometrist or ophthalmologist. It does not diagnose eye conditions such as strabismus, esotropia, exotropia, hyperopia, or astigmatism. Regular professional eye examinations are recommended, and you should seek professional medical advice if you notice changes in vision.
Screenshots
Verdict
The clearest difference is review sentiment: Eye Charts at 67% against Shockwave Therapy's 0%. Eye Charts also leads on monetization model (free vs paid) and ratings volume (29 vs 2). Shockwave Therapy's advantage is rating (4.0 vs 3.5) and iOS requirement (9.3 vs 14.0). On price, update cadence, ads and in-app purchases 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
Shockwave Therapy costs $4.99 and Eye Charts $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Shockwave Therapy holds the better App Store score, 4.0 against 3.5. That said, the two scores are not equally well evidenced: Eye Charts has 29 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 0% of Shockwave Therapy's written reviews are positive against 67% of Eye Charts's, so the app with the better star average is not the one people write more warmly about.
Shockwave Therapy ships an update every 4 months, Eye Charts every 3 months. The most recent releases landed on June 5, 2026 and September 22, 2026 respectively.
| Parameter | Shockwave Therapy | Eye Charts |
|---|---|---|
| Price | $4.99 | $4.99 |
| Rating | 4.0 (2 ratings) — better | 3.5 (29 ratings) |
| Positive reviews | 0.0% of reviews | 66.7% of reviews — better |
| Number of ratings | 2 | 29 — better |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 9.3 — better | 14.0 |
| Further details — not scored | ||
| Size | 10 MB | 23 MB |
| Age rating | 12+ | 12+ |
| Developer | Elvation Medical GmbH | zijian huang |
Customer experience
Shockwave Therapy
Eye Charts
In-app purchases
Shockwave Therapy
No in-app purchases
Eye Charts
No in-app purchases






