NativeScript Preview vs NumBan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NativeScript Preview
Instantly preview your NativeScript projects directly on your mobile device. See your native UI elements, from buttons to complex 2D/3D canvas renderings, come to life as you develop.
- Live preview on device
- Native UI element rendering
- 2D canvas rendering
- 3D canvas rendering
- Cross-platform development tool
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Preview NativeScript projects on your device – from basic native user interface elements like buttons, switches and sliders, to 2d/3d canvas renderings.
NumBan
This app helps you combat scam callers by reporting suspicious callback numbers. It extracts numbers from voicemails, generates reports, and tracks successful disconnections. Compete on a leaderboard for confirmed 'kills' and help take down scam operations.
- Extracts callback numbers from voicemails
- Generates verified abuse reports
- Routes reports through a NumBan alias
- Tracks reported numbers for disconnection
- Public leaderboard for confirmed kills
- Provides links to FTC and FCC complaint sites
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NumBan hits the callback number a scam voicemail asks you to dial. Caller ID is easy to spoof. The number that the scammers need you to call back is not. Share the voicemail or a screenshot of one from the iPhone Phone app. NumBan extracts that spoken number, prepares a verified abuse report, and routes it through a NumBan-managed alias. Your personal contact info is never included. After enough independent reports, the complaint is sent to the carrier or RespOrg that hosts the number. NumBan re-checks periodically. When the number reports that it has been disconnected, that is a kill. Kills rank you on the leaderboard. How to file a hit • Open Phone and find the voicemail • Tap Share and choose NumBan • Sign in with your US mobile number if you have not already • Confirm the callback number when asked • Optionally share a screenshot to verify the timestamp when the voicemail was received What you get • A report history for every number you have hit • Push when a number you reported looks dead • A public leaderboard ranked by confirmed kills, not raw filings • Copy-ready notes plus Safari links to FTC ReportFraud and FCC consumer complaints NumBan Pro Free accounts can file 3 verified reports per calendar month. Pro removes that cap and unlocks extra reporting tools in the app. • NumBan Pro Monthly — $0.99 per month • NumBan Pro Yearly — $9.99 per year Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel in Settings → Apple ID → Subscriptions, or in the app under Manage subscription. Privacy Reports go out from a NumBan relay address. Voicemail audio and screenshots stay private evidence and is never published. Public number pages on numban.com show only aggregate, redacted data. NumBan is a consumer reporting tool, not a law firm, and does not guarantee that a carrier will disconnect a number. Support: https://numban.com/help Privacy: https://numban.com/privacy Terms: https://numban.com/terms
Screenshots
Verdict
The clearest difference is in-app purchases: NativeScript Preview at none against NumBan's 2. NativeScript Preview also leads on ratings volume (5 vs 1) and device support (4 vs 1). NumBan's advantage is update cadence (every 4 days vs every 3 weeks) and rating (5.0 vs 4.8). On price and ads 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. NumBan sells 2 in-app purchases, starting at $0.99 per month. NativeScript Preview asks for nothing beyond the download.
NumBan holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: NativeScript Preview has 5 ratings behind it against 1, so its average is the more settled of the two.
NativeScript Preview ships an update every 3 weeks, NumBan every 4 days. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.
| Parameter | NativeScript Preview | NumBan |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 19.4% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod, Vision Pro — better | iPhone |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 151 MB | 23 MB |
| Age rating | 4+ | 9+ |
| Developer | nStudio LLC | Ammon Brown |
Customer experience
NativeScript Preview
NumBan
In-app purchases
NativeScript Preview
No in-app purchases
NumBan
- English$0.991 Month
- English$9.991 Year
Questions
Is NativeScript Preview free?
Is NumBan free?
Which has better reviews, NativeScript Preview or NumBan?
Do NativeScript Preview or NumBan have ads?
Which is updated more often, NativeScript Preview or NumBan?
Other comparisons
