Go4 vs PROTECT3D for iPhone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Go4
This app connects athletic trainers with per diem and travel job opportunities across various settings like schools and athletic organizations. It facilitates easy job searching, direct deposit payments, and includes built-in EMR documentation. Users can also manage their professional credentials and insurance.
- Find per diem and travel jobs
- Direct deposit payments
- Built-in EMR documentation
- Purchase professional liability insurance
- Manage job preferences and credentials
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The Go4 app connects Athletic Trainers with per diem and travel job opportunities in athletics, schools, private organizations, and more. - Easily find per diem work in your area or contract jobs anywhere in the US - Get paid by direct deposit at the end of your shift - Built-in EMR documentation - Purchase Professional Liability Insurance (PLI) - Manage job preferences and credentials, such as licensures, background clearances, professional liability insurance, and other documents
PROTECT3D for iPhone
This app uses 3D scanning technology to create custom-fit protective gear for athletes. It allows users to easily scan themselves or collaborate with designers for personalized protection, optimizing comfort and mobility.
- 3D scanning with smartphone camera
- Customized protective devices
- Athlete registration
- Order status tracking
- Collaboration with design engineers
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Compete without limits using the power of 3D technology with the PROTECT3D app! PROTECT3D designs and manufactures anatomically precise protective devices for athletes based on a 3D scan. Each device is customized for the individual athlete, optimized for protection, comfort, and mobility. Highlighted features: • The PROTECT3D app makes 3D scanning as easy as taking a video with your TrueDepth camera equipped smartphone. • Select from a range of custom products and follow the on-screen instructions to take a 3D scan, or collaborate with one of our Design Engineers to bring your brand new idea to life. • Register athletes and track order status to make protecting your team as seamless as possible. Standard devices are used for applications in areas including but not limited to: • Collarbone • Shoulder • Sternum • Rib • Finger • Thumb • Hand • Wrist • Leg • Foot • Head • Ankle Note: Log-In information is required for full use of the PROTECT3D app. After submitting the Sign Up form, you'll be contacted by a member of our team with additional instructions to complete account setup.
Screenshots
Verdict
The clearest difference is rating: PROTECT3D for iPhone at 5.0 against Go4's 4.3. PROTECT3D for iPhone also leads on review sentiment (100% vs 75%) and update cadence (monthly vs every 2 months). Go4's advantage is ratings volume (91 vs 10) and iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
PROTECT3D for iPhone holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Go4 has 91 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 75% of Go4's written reviews are positive against 100% of PROTECT3D for iPhone's.
Go4 ships an update every 2 months, PROTECT3D for iPhone monthly. The most recent releases landed on September 28, 2026 and September 21, 2026 respectively.
| Parameter | Go4 | PROTECT3D for iPhone |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (91 ratings) | 5.0 (10 ratings) — better |
| Positive reviews | 75.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 91 — better | 10 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 22 MB | 1.4 GB |
| Age rating | 4+ | 4+ |
| Developer | Go4ellis LLC | Protect3d |
Customer experience
Go4
PROTECT3D for iPhone
Bugs and requests
Go4
Reported bugs
19 issues- App crashes and signs out randomly
- App crashes when clicking job posting tab
- App not opening after recent update
- App always logging users out
- Waitlisted immediately after applying
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- Position filled the next day after waitlisting
- Glitch when setting experience (medical prompts for sports)
- EMR broken after update, app closes when creating report
- Shift remains pending even when event is happening
- Credentials interface is glitchy
- Distance filter not working correctly
- Unable to unapply for a job
- No jobs showing in job listing searches
- Injury report is redundant and long
- Contact person for venue not listed
- Takes weeks to get accepted or denied for a job
- Some emails not working
- Cannot go back and edit once a note is completed
- Email notifications for shifts do not always show up on the app
Requested features
20 requests- Compensation for last-minute cancellations by event coordinators
- Add to calendar function
- Ability to rate employees or provide feedback on cancelled events
- Ability to charge banking fees to the host
- Easier interface for adding credentials
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- Option to negotiate compensation with event posters
- Add a printing option for notes
- Signed release to print or share notes
- Ability to negotiate shift times
- Break down super long shifts
- More thorough EMR with auto-populated special tests
- Ability to edit completed notes
- Option to pick licensed states
- Fix distance filter
- Ability to unapply for jobs
- Option to negotiate pay rates
- Ability to call or text for job questions
- Break down long shifts
- Dark mode option
- Advanced analytics dashboard
PROTECT3D for iPhone
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Go4
No in-app purchases
PROTECT3D for iPhone
No in-app purchases




