Ubox vs Instant Cal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ubox
This app allows users to register and manage intelligent video devices, offering features like power-saving modes, remote wake-up, and various recording options. It supports live viewing, dual-way audio, and remote parameter settings for a range of camera types.
- User registration and device binding
- Power-saving mode and remote wakeup
- TF and cloud recording
- AI face recognition notifications
- Live H.264 720P/1080P viewing
- Dual-way audio
- Remote parameter setting
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A new client for power saving intelligent video device Main Features: - Support user register and binding device to user account - Support power-saving mode and remote wakeup - Support TF recording and cloud recording video - Support notification with a snapshot - Support notification with AI face recogization - Live view H.264 720P/1080P up to 30FPS - Dual way audio - Remote Parameter setting - Remote query alert and playback - Support WiFi doorbell - Support WiFi battery camera - Support 4G wireless battery camera - Support Solar WiFi/4G wireless camera - Support Panoramic camera 【30-day recurring cloud storage with annual subscription】 1. Subscription cycle: one year 2. Subscription price: US$214.99 per year for 6 devices, US$179.99 per year for 5 devices, US$144.99 per year for 4 devices, US$109.99 per year for 3 devices, US$74.99 per year for 2 devices, and US$39.99 per year for 1 device 【30-day recurring cloud storage half-year subscription instructions】 1. Subscription cycle: 6 Months 2. Subscription price: US$119.99 per year for 6 devices, US$102.99 per year for 5 devices, US$82.99 per year for 4 devices, US$62.99 per year for 3 devices, US$40.99 per year for 2 devices, and US$20.99 per year for 1 device 【30-day recurring cloud storage monthly subscription instructions】 1. Subscription cycle: 1 Months 2. Subscription price: US$19.99 per year for 6 devices, US$17.99 per year for 5 devices, US$14.49 per year for 4 devices, US$10.49 per year for 3 devices, US$6.99 per year for 2 devices, and US$3.99 per year for 1 device 【7-day recurring cloud storage per year subscription instructions】 1. Subscription cycle: one year 2. Subscription price: US$119.99 per year for 6 devices, US$99.99 per year for 5 devices, US$79.99 per year for 4 devices, US$59.99 per year for 3 devices, US$39.99 per year for 2 devices, and US$20.49 per year for 1 device 【7-Day Recurring Cloud Storage Half-Year Subscription Instructions】 1. Subscription cycle: 6 Months 2. Subscription price: US$59.99 per year for 6 devices, US$49.99 per year for 5 devices, US$40.99 per year for 4 devices, US$29.99 per year for 3 devices, US$19.99 per year for 2 devices, and US$10.49 per year for 1 device 【7-Day Recurring Cloud Storage Monthly Subscription Instructions】 1. Subscription cycle: 1 Months 2. Subscription price: US$10.99 per year for 6 devices, US$8.99 per year for 5 devices, US$6.99 per year for 4 devices, US$4.99 per year for 3 devices, US$3.49 per year for 2 devices, and US$1.99 per year for 1 device 【Renew and unsubscribe】 Payment: After the user confirms the purchase and makes the payment, it will be credited to the iTunes account Unsubscribe: To unsubscribe, manually open the iPhone Settings -->enter the iTunes Store and App Store -->click Apple ID, select View Apple ID, enter the Account Settings page, click Subscribe, and select unsubscribe. Renewal: 24 hours before the expiration of Apple's subscription period, deduct the service charge for the next subscription period from your iTunes account and extend the validity of the member corresponding to the subscription period. If the deduction fails due to insufficient balance in the iTunes account, the app has the right to suspend/terminate your cloud video service. User Agreement: http://doc.ubianet.com/pages/ubox/term-of-service.html Privacy Policy: http://doc.ubianet.com/pages/ubox/privacy-policy.html Cloud Service Agreement: https://doc.ubianet.com/pages/ubox/cloudservice.html Cloud service auto-renewal agreement: https://doc.ubianet.com/pages/ubox/cloudservice-renew.html
Instant Cal
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See results the moment you type. Instant Calc is an all-in-one calculator that shows results as you enter numbers — no Calculate button needed. Just type and see. 15 Specialized Calculators Finance & Daily Life • Discount Calculator — Instantly calculate sale prices and savings • Loan Calculator — Monthly payment, total interest, full amortization • Savings Calculator — Final balance and after-tax interest • Currency Converter — Real-time rates for 14 currencies Dining & Splitting • Tip Calculator — Split bills with custom tip percentages • Dutch Pay — Divide any bill evenly among any number of people Health • BMI Calculator — Body mass index with health grade (ft/lb or cm/kg) • Age Calculator — Exact age in years, months, days + birthday countdown Unit Conversion • Length, Weight & Temperature converter (imperial ↔ metric) • Fuel Efficiency — MPG and km/L • Unit Price Comparison — Find the better deal instantly • Date Calculator — Days between dates, D-day countdown • Math & Engineering — Expression evaluator, trig, fraction→decimal Key Features 4 Languages — Korean · English · Japanese · Chinese Dark Mode / Light Mode toggle Favorites — Pin your most-used calculators to the top History — Review any past calculation anytime Large Text Mode — Bigger display for comfortable reading Live Exchange Rates — Auto-updated via KEB Hana Bank No sign-up. No clutter. Open the app and start calculating.
Screenshots
Verdict
The clearest difference is in-app purchases: Instant Cal at none against Ubox's 10. Instant Cal also leads on update cadence (every 2 weeks vs monthly). Ubox's advantage is ads (none vs shown) and chart position (#64 vs unranked). On price, device support and iOS requirement 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. Ubox sells 10 in-app purchases, starting at $3.99 per month. Instant Cal asks for nothing beyond the download.
Ubox ships an update monthly, Instant Cal every 2 weeks. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.
| Parameter | Ubox | Instant Cal |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (29K ratings) — better | — |
| Positive reviews | 87.3% of reviews | — |
| Number of ratings | 29K — better | — |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #64 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 92 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | HONGBO WANG | Taek Oh |
Bugs and requests
Ubox
Reported bugs
4 issues- Camera disconnects randomly
- App freezes during live view
- Recorded videos not saving properly
- Incorrect battery level reporting
Requested features
5 requests- Scheduled recording and notifications
- Customizable motion detection zones
- Local video storage option
- PC/web-based app support
- Improved two-way audio quality
Instant Cal
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Ubox
- 7-day recurring cloud storage$3.991 Month
- 30-day recurring cloud storage$5.991 Month
- 2 x 30 days cloud recording$6.991 Month
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- 2 x 180 days cloud recording$10.991 Month
- 3 x 30 days cloud recording$16.991 Month
- 4 x 30 days cloud recording$22.991 Month
- 7-day recurring cloud storage$39.991 Year
- 30-day recurring cloud storage$59.991 Year
- Cloud storage 30 days$3.49
- 30-day event trigger video$5.49
Instant Cal
No in-app purchases









