OPENWORLD V1.0 vs Warm U
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
OPENWORLD V1.0
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"Openworld"- an AR cultural and creative brand of interesting, artistic and interactive, shows the meaning behind cultural and creative products to users through the blessing of AR. This is an educational way, which allows users to have a brand-new understanding of the solar system more intuitively.
Warm U
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Warm U is a Bluetooth control app that can control devices through Bluetooth. The app mainly provides heating and timing services. Users can easily control the heating temperature, timing and other functions of insoles to adapt to different environments and needs. This insole is particularly suitable for cold weather or situations that require prolonged standing or walking.
Screenshots
Verdict
The clearest difference is update cadence: Warm U at weekly against OPENWORLD V1.0's every 9 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
OPENWORLD V1.0 ships an update every 9 months, Warm U weekly. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.
| Parameter | OPENWORLD V1.0 | Warm U |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months | Weekly โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPod |
| Requires iOS | 13.0 | 12.0 โ better |
| Further details โ not scored | ||
| Size | 456 MB | 19 MB |
| Age rating | 17+ | 17+ |
| Developer | airspace technology(beijing)Co.Ltd | ๆตทๆด ๅ |
In-app purchases
OPENWORLD V1.0
No in-app purchases
Warm U
No in-app purchases









