Go4 vs XO Armor Scanner
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
XO Armor Scanner
Design custom-fitted protective gear using your phone's 3D scanner. This app utilizes a unique 3D printing process with durable, lightweight materials for maximum protection and comfort. Sign up on the website to begin creating your tailored gear.
- Custom-fitted protective gear design
- 3D scanner integration
- Patent-pending 3D printing process
- Durable, lightweight, and flexible materials
- Tailored to unique body measurements
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XO Armor Scanner is a free mobile app for designing custom-fitted and perfectly-tailored protective gear from the comfort of your home using a 3D scanner. Our patent-pending 3D printing process ensures your gear will be tailored to a body that’s uniquely yours. We use the strongest, most durable, lightweight and flexible materials for maximum protection and comfort. Visit our website to sign up and start using the app at https://www.xoarmortech.com.
Screenshots
Verdict
The clearest difference is rating: XO Armor Scanner at 4.8 against Go4's 4.3. XO Armor Scanner also leads on review sentiment (100% vs 75%). Go4's advantage is ratings volume (92 vs 4) and iOS requirement (9.0 vs 16.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
XO Armor Scanner holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Go4 has 92 ratings behind it against 4, 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 XO Armor Scanner's.
Go4 ships an update every 2 months, XO Armor Scanner every 6 weeks. The most recent releases landed on October 24, 2026 and October 3, 2026 respectively.
| Parameter | Go4 | XO Armor Scanner |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (92 ratings) | 4.8 (4 ratings) — better |
| Positive reviews | 75.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 92 — better | 4 |
| Update frequency | Every 2 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 22 MB | 13 MB |
| Age rating | 4+ | 12+ |
| Developer | Go4ellis LLC | XO Armor Technologies LLC |
Customer experience
Go4
XO Armor Scanner
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
XO Armor Scanner
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Go4
No in-app purchases
XO Armor Scanner
No in-app purchases
