3D Circle vs Letianpai
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3D Circle
This utility app provides a simple and straightforward way to create and manage 3D circles. It's designed for users who need a basic tool for geometric visualization.
- 3D circle creation
- Circle management
- Geometric visualization
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Only playing real footage can prove true high definition; simply using anime materials is just a marketing gimmick.
Letianpai
Control robots and integrate various sensors with this utility application. It allows for advanced customization and interaction with robotic hardware.
- Robot control
- Sensor integration
- Hardware interaction
- Customization options
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The Letianpai APP can control the robot and add sensors.
Screenshots
Verdict
The clearest difference is rating: 3D Circle at 3.0 against Letianpai's 1.0. 3D Circle also leads on review sentiment (25% vs 0%) and ratings volume (3 vs 1). 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.
3D Circle holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 25% of 3D Circle's written reviews are positive against 0% of Letianpai's.
3D Circle ships an update every 2 weeks, Letianpai every 3 weeks. The most recent releases landed on October 20, 2026 and September 26, 2026 respectively.
| Parameter | 3D Circle | Letianpai |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (3 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 25.4% of reviews — better | 0.0% of reviews |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 45 MB | 76 MB |
| Age rating | 4+ | 17+ |
| Developer | 飞海 李 | 北京人和家科技有限公司 |
Customer experience
3D Circle
Letianpai
Bugs and requests
3D Circle
Reported bugs
20 issues- App does not recognize WiFi connection despite phone being connected
- WiFi network fails to appear in device settings
- App crashes when uploading videos
- App crashes when adding 3D text with character limits
- Rotation settings buttons non-functional
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- Brightness control not working
- Video orientation displays horizontally incorrectly
- Delete function is buggy and unreliable
- File deletion requires force quit and relaunch
- App shows 'Device disconnected' error repeatedly
- Bluetooth connection shows in settings but not in app
- SD card error messages during upload
- WiFi constantly disconnects and reconnects
- App does not support PNG or GIF files properly
- Deletion fails if file is currently playing
- App crashes on older iOS devices
- App freezes and becomes unresponsive
- Video upload shows 'no stream' error
- Recent update broke video upload functionality
- Videos display at reduced size after update
Requested features
16 requests- Increase file storage limit beyond 50 items
- Bluetooth connectivity option instead of WiFi only
- Hide top and bottom faces on 3D shapes
- File naming and description capabilities
- Offline mode for content creation
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- GIF file support
- Video rotation and editing tools
- Individual video reversal for bounce looping
- Subfolder or page organization system
- Ability to recover deleted factory content
- WiFi password reset functionality
- Better file deletion mechanism
- Character limit increase for 3D text
- Image/video shrinking with padding options
- Trash recovery before permanent deletion
- Mac/iOS desktop software support
Letianpai
Not enough reviews yet to summarise bugs or requests.
In-app purchases
3D Circle
No in-app purchases
Letianpai
No in-app purchases
