CalendarLoop vs Viewra 3D
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
CalendarLoop
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CalendarLoop is an easy-to-use app for managing events, reminders, and tasks. Share schedules with family, stay organized at work, and plan each day with confidence.
Viewra 3D
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Viewra 3D is a local-first 3D model viewer designed for private and smooth file viewing. No account registration or cloud upload required. Supports a wide range of 3D and CAD/BIM formats, including 3DM, 3DS, 3MF, AMF, BIM, BREP, DAE, FBX, FCStd, GLTF, IFC, IGES, STEP, STL, OBJ, OFF, PLY, and WRL. * Model Tree Show or hide model nodes by hierarchy to focus on specific structures and parts. * Section View Inspect internal structures and hidden components with interactive sectioning. * Exploded View Separate assembly components for a clearer understanding of part relationships. * Screenshot Export Capture the current view and export high-resolution images for sharing or documentation. * Multi-Format Export Export models to STL, PLY, GLB, OFF, 3DM, BIM, and other 3D formats for easier collaboration and data exchange. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: CalendarLoop at none against Viewra 3D's 3. CalendarLoop also leads on update cadence (monthly vs every 4 months) and iOS requirement (13.4 vs 18.6). On price, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Viewra 3D sells 3 in-app purchases, starting at $2.99 per month. CalendarLoop asks for nothing beyond the download.
CalendarLoop ships an update monthly, Viewra 3D every 4 months. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.
| Parameter | CalendarLoop | Viewra 3D |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly โ better | Every 4 months |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 13.4 โ better | 18.6 |
| Further details โ not scored | ||
| Size | 48 MB | 152 MB |
| Age rating | 4+ | 4+ |
| Developer | MOCREO PTE. LTD. | Shenzhen Seize Times E-Commerce Co., Ltd. |
In-app purchases
CalendarLoop
No in-app purchases
Viewra 3D
- Viewra 3D Pro (1 Month)$2.991 Month
- Viewra 3D Pro (1 Year)$29.991 Year
- Viewra 3D Pro (Lifetime)$79.99
