Comparison

SD Master vs URNA

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

About

SD Master

Features

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Application Brief: Power Master - one stop service to provide customers with professional management services 【Product description】 SD device management, WiFi configuration and APNs configuration based on existing integration hotspots. 【Features】 Easy to use: Simple operation to achieve the goal with minimum operation Express clearly, express the clearest meaning with the least text Powerful, comprehensive services to help you manage your business. One-click shop: Provide you with a simple and convenient distribution service Wide range: Support multi-country and provide services to make your equipment all over the world 【Keep in touch】 Customer service email: developer@sdbattery.com Thank you for using SouDian. Your valuable comments are very important to us. Please leave your contact information while commenting. We will solve your problem quickly. Shenzhen Zhumang Technology Development Co., Ltd.

About

URNA

Features

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Rapid Charging Technology: Equipped with advanced fast-charging technology, it charges your devices up to 50% faster than conventional power banks, saving you valuable time.

Screenshots

SD Master2 screens

URNA4 screens

Verdict

The call

The clearest difference is update cadence: URNA at every 3 weeks against SD Master's every 2 months. SD Master's advantage is iOS requirement (9.0 vs 13.4). On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SD Master ships an update every 2 months, URNA every 3 weeks. The most recent releases landed on September 18, 2026 and September 6, 2026 respectively.

Scorecard2 real differences · 4 level

SD Master versus URNA: the parameters behind the verdict, then further details
Parameter	SD Master	URNA
Price	Free	Free
Update frequency	Every 2 months	Every 3 weeks — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	9.0 — better	13.4
Further details — not scored
Size	28 MB	36 MB
Age rating	17+	17+
Developer	Shenzhen Zhumang Information Technology Co., Ltd.	IoT (Shenzhen) Sharing Technology Co., Ltd

In-app purchases

None

SD Master

No in-app purchases

None

URNA

No in-app purchases

Questions

Is SD Master free?

SD Master is free to download, with no in-app purchases.

Is URNA free?

URNA is free to download, with no in-app purchases.

Do SD Master or URNA have ads?

Neither SD Master nor URNA shows ads.

Which is updated more often, SD Master or URNA?

SD Master ships an update every 2 months, and URNA every 3 weeks. Most recently, SD Master was updated on September 18, 2026 and URNA on September 6, 2026.