Clavister OnePass vs NumberBox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Clavister OnePass
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Clavister OnePass generates one-time passwords.
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 iOS requirement: Clavister OnePass at 10.0 against NumberBox's 15.0. 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.
Clavister OnePass ships an update every 3 months, NumberBox every 2 months. The most recent releases landed on November 11, 2026 and November 12, 2026 respectively.
| Parameter | Clavister OnePass | NumberBox |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (570 ratings) — better |
| Positive reviews | — | 63.6% of reviews |
| Number of ratings | — | 570 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 22 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Clavister Security AB | Marvan Salemi |
Bugs and requests
Clavister OnePass
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
Clavister OnePass
No in-app purchases
NumberBox
No in-app purchases
Questions
Is Clavister OnePass free?
Is NumberBox free?
Do Clavister OnePass or NumberBox have ads?
Which is updated more often, Clavister OnePass or NumberBox?
Other comparisons
