UDAN EMS vs AptRing
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UDAN EMS
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The EMS App supports the access and unified control of energy storage, photovoltaic and charging equipment. Support different operators' access, and completely isolate the data of each operator. Flexible generation of daily, monthly, and annual operating data reports and revenue data. For end users of energy storage, it provides power generation and power consumption data viewing, optimizes energy supply, and monitors energy equipment anytime and anywhere through instant reminders and remote access functions.
AptRing
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An efficient community access system with video intercom, facial recognition, and indoor large screen, creating a safe and convenient way to get around
Screenshots
Verdict
The clearest difference is iOS requirement: AptRing at 13.0 against UDAN EMS's 15.0. 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.
UDAN EMS ships an update every 5 weeks, AptRing every 4 weeks. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.
| Parameter | UDAN EMS | AptRing |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 34 MB | 109 MB |
| Age rating | 4+ | 4+ |
| Developer | Anhui Udan Technology Co., Ltd. | Hangzhou Sciener Smart Technology |
In-app purchases
UDAN EMS
No in-app purchases
AptRing
No in-app purchases
