FSJ vs NumberBox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FSJ
This app provides real-time tracking and maintenance services through a user-friendly mobile interface. It helps users manage and monitor their assets efficiently.
- Real-time tracking
- Maintenance management
- User-friendly interface
- Mobile access
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Fsj is a real-time tracking and maintenance application with user friendly mobile interface
NumberBox
This app helps you identify unwanted calls by allowing users to report and tag spam or telemarketing numbers. All submissions are anonymous and help build a community-driven database to protect users from potential scams.
- Voluntarily report unwanted numbers
- Manually add tags to phone numbers
- Identify spam and telemarketing calls
- Anonymous tag submissions
- Privacy-focused data policy
- In-app support
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NumberBox is a simple and secure tool that allows users to voluntarily report unwanted or spam phone numbers to help keep the community safe. Users can manually add tags to phone numbers — for example, “Scammer,” “Telemarketing,” or “Spam.” All tags are submitted voluntarily by users to help others recognize potentially unwanted calls. Privacy & Data Policy NumberBox does not collect, store, or share any personal data. The app does not access contacts, call history, messages, or any other private information. All user-submitted tags are stored anonymously and are not linked to personal identities. Contact & Support If you have any questions, or wish to modify or remove user-submitted data, please contact us through the in-app support section or via our official support email.
Screenshots
Verdict
The clearest difference is review sentiment: NumberBox at 61% against FSJ's 0%. NumberBox also leads on update cadence (every 2 months vs every 22 months) and rating (4.5 vs 4.1). FSJ's advantage is iOS requirement (12.4 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.
NumberBox holds the better App Store score, 4.5 against 4.1. That said, the two scores are not equally well evidenced: NumberBox has 563 ratings behind it against 17, so its average is the more settled of the two. Written reviews point the same way: 0% of FSJ's written reviews are positive against 61% of NumberBox's.
FSJ ships an update every 22 months, NumberBox every 2 months. Both last shipped on October 24, 2026.
| Parameter | FSJ | NumberBox |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (17 ratings) | 4.5 (563 ratings) — better |
| Positive reviews | 0.0% of reviews | 61.0% of reviews — better |
| Number of ratings | 17 | 563 — better |
| Update frequency | Every 22 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 70 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Mahdiyeh Khodaparastan | Marvan Salemi |
Customer experience
FSJ
NumberBox
Bugs and requests
FSJ
Not enough reviews yet to summarise bugs or requests.
NumberBox
Reported bugs
5 issues- App stopped working after latest update
- Unable to identify any numbers despite core function
- Update installation failures
- Incorrect name matching for phone numbers
- App displays personal information without user consent
Requested features
5 requests- Offline functionality
- Location information display
- Anonymous call profile display
- Expanded database for specific regions (Yemen)
- Expanded number database
In-app purchases
FSJ
No in-app purchases
NumberBox
No in-app purchases
