STW POWSTAR vs RF OS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
STW POWSTAR
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STW Power provides a solution for users to rent a mobile power bank. Using the APP to rent a mobile power bank anytime, anywhere, makes charging easier, without worrying that the phone does not have enough power. And this APP has a simple interface and low rental prices.
RF OS
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A mobile app for anyone running a tournaments.
Screenshots
Verdict
STW POWSTAR and RF OS are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
STW POWSTAR ships an update every 2 months, RF OS monthly. The most recent releases landed on September 17, 2026 and September 1, 2026 respectively.
| Parameter | STW POWSTAR | RF OS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 59 MB | 39 MB |
| Age rating | 9+ | 4+ |
| Developer | Shenzhen Zhongxinli Electronic Technology Co., Ltd. | RF Labs, Inc. |
In-app purchases
STW POWSTAR
No in-app purchases
RF OS
No in-app purchases
