O vs 3D Eye Booster
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
O
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* Measure your chewing age! * This application is only available for devices that support ARKit FaceTracking (FaceID-enabled devices or devices with Apple A13 Bionic chip or later). Please check the Compatible Devices section of our website (https://www.morson.jp/o-trainer/) for supported models. O-TRAINER is an application that supports your chewing training. It has been created to help those who want to improve their chewing and swallowing ability. Training the ability to chew and swallow not only helps prevent aspiration pneumonia and oral frail. It also extends healthy life span and makes it possible to enjoy eating and talking more. Let's use the O-TRAINER, chew a lot, and stay healthy! With the O-TRAINER, you can * Train your mouth * Measure your chewing age by facing the device's camera while taking a meal * Measure the number of times you chew and the speed at which you chew. * Look back on your meal records
3D Eye Booster
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Let's create 3D videos for vision recovery training! Achieve a daily, engaging vision recovery training experience with a variety of customizable 3D videos made from your favorite photos and images. Features: - Expected to improve vision recovery - Training with your favorite photos and images - All videos are in 3D - Customize the 3D movements freely - Easy to focus on - Can be tailored to your own vision needs - Export 3D videos and photos to share - No need to switch between parallel and cross-eyed methods Note: - Users who are able to see stereograms in other 3D vision recovery apps or books will have no problem enjoying this app. - If you cannot see stereograms, try looking at the screen cross-eyed or unfocusing your eyes. Eventually, you should be able to see the 3D image. We hope you enjoy your daily training and achieve vision recovery with our app. Attention: - Avoid putting too much strain on your eye muscles during training. - Limit training to approximately 10 minutes per session, several times per day. Functions: - Photo selection: Camera, photo library, web image paste, file sharing - Animation types: 30 in total (water ripples, blind, slope, rotation, dome, heart, etc.) - Animation effects: Focus distance, depth, setting 1, setting 2, cycle - Continuous control through sliders - Real-time control Output: File saving (in photo library) File sharing (file saving, AirDrop, email, LINE, Twitter, Facebook, memo, Dropbox...)
Screenshots
Verdict
The clearest difference is price: O at Free against 3D Eye Booster's $0.99. O also leads on update cadence (every 2 weeks vs every 11 months). 3D Eye Booster's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 15.0). On ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
O is free to download; 3D Eye Booster costs $0.99 up front. O sells 2 in-app purchases, starting at $2.99 per month. 3D Eye Booster asks for nothing beyond the download.
O ships an update every 2 weeks, 3D Eye Booster every 11 months. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.
| Parameter | O | 3D Eye Booster |
|---|---|---|
| Price | Free β better | $0.99 |
| Update frequency | Every 2 weeks β better | Every 11 months |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 β better |
| Further details β not scored | ||
| Size | 49 MB | 5 MB |
| Age rating | 12+ | 4+ |
| Developer | Morson Japan | Masanori Katsuta |
In-app purchases
O
- γγ¬γγ’γ γγ©γ³οΌοΌγΆζοΌ$2.991 Month
- εΊεγει€$2.99
3D Eye Booster
No in-app purchases
Questions
Is O free?
Is 3D Eye Booster free?
Do O or 3D Eye Booster have ads?
Which is updated more often, O or 3D Eye Booster?
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