iPantherTime vs sketchbookDuo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iPantherTime
Access bell schedules and school events for PVPHS. Stay informed about your school's daily activities and important dates with this utility app.
- Display bell schedule
- Show school events
- PVPHS information
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This app is not affiliated and endorsed by PVPHS and/or PVPUSD. Display Bell Schedule and School Events for PVPHS Logo designed by Chelsea Liu Special thanks to Chelsea Liu with all her ideas and teamwork for implementing UI design! Special thanks to Monica Lin for drafting the privacy policy.
sketchbookDuo
Design, manage, and send marking data to compatible devices. Features a grid-based editor for precise text placement and robust file management for marking jobs. Connects wirelessly for efficient control of marking tasks.
- Grid-based editor
- File management
- Device connection
- Marking control
- Customizable grids
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sketchbookDuo is the official companion app for MarkinBox and Patmark devices. With sketchbookDuo, you can easily design, manage, and send marking data directly from your iPhone or iPad to your MB3 device. Key Features • Grid-based editor – Create and place text precisely on customizable grids (80×20, 33×15, 15×15). • File management – Save, load, rename, overwrite, and delete local marking files (.bppg). • Device connection – Connect to MB3 devices quickly over Wi-Fi. • Marking control – Start, pause, and send marking jobs with one tap. • Settings – Adjust grid sizes and prepare for future features. sketchbookDuo is designed for professionals who need precision and efficiency in portable marking. Whether in the workshop or on-site, MB3App makes marking tasks simpler, faster, and more reliable.
Screenshots
Verdict
The clearest difference is rating: sketchbookDuo at 5.0 against iPantherTime's 4.6. sketchbookDuo also leads on update cadence (fortnightly vs every 3 months). iPantherTime's advantage is ratings volume (83 vs 1). 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.
sketchbookDuo holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: iPantherTime has 83 ratings behind it against 1, so its average is the more settled of the two.
iPantherTime ships an update every 3 months, sketchbookDuo fortnightly. Both last shipped on October 24, 2026.
| Parameter | iPantherTime | sketchbookDuo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (83 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 91.2% of reviews | — |
| Number of ratings | 83 — better | 1 |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 16.6 — better |
| Further details — not scored | ||
| Size | 3 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | henry chou | Tocho Marking Systems, Inc. |
Customer experience
iPantherTime
sketchbookDuo
In-app purchases
iPantherTime
No in-app purchases
sketchbookDuo
No in-app purchases
Questions
Is iPantherTime free?
Is sketchbookDuo free?
Which has better reviews, iPantherTime or sketchbookDuo?
Do iPantherTime or sketchbookDuo have ads?
Which is updated more often, iPantherTime or sketchbookDuo?
Other comparisons
