KeyLinker vs Ah Charge! Controller Battery
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KeyLinker
Customize and enhance your controller experience with this utility app. Modify parameters for keys, lighting, vibration, and more to suit your personal preferences. Enjoy a more personalized and responsive gaming setup.
- Modify key parameters
- Customize lamplight settings
- Adjust vibration feedback
- Configure joystick and trigger
- Simultaneous device connection
Read full descriptionHide full description
This app is used by handles that support keylinker protocol, which can be set to modify the parameters of more than ten functions of the handle, such as keys, lamplight, vibrations, joystick and trigger. Users can modify the parameters of the handle according to their habits. The flexible parameter settings greatly enhance the handle experience.The handle can be connected to this app and other equipment at the same time, and can be used at the same time
Ah Charge! Controller Battery
Monitor your controller's battery level to avoid mid-game shutdowns. Get timely alerts and view battery percentage directly within the app or via widgets. Offers a Pro version for advanced features like push notifications and ad-free experience.
- Controller battery percentage display
- Button input tester
- Home Screen widget
- Lock Screen widget
- Low battery alerts
- Live Activity on Lock Screen/Dynamic Island
Read full descriptionHide full description
Ever had your controller die mid-game? Ah Charge! shows your controller's battery level so you can charge it before it's too late. [Free] ◼ See your controller's battery % inside the app ◼ Button input tester ◼ Home Screen widget ◼ Lock Screen widget ◼ Connection guide screen [Pro] (subscription, or watch an ad for 3 hours of access) ◼ Get an alert when the battery drops below your threshold (20% by default), even while you use other apps ◼ Live Activity on the Lock Screen and Dynamic Island (iOS 16.1+) ◼ No ads Officially supported controller: Sony DualSense. Other controllers that report battery information may also work, but support is not guaranteed. Auto-renewable subscription Payment will be charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions in your App Store account settings after purchase. Plans: weekly, monthly, yearly ◼ Privacy Policy: https://dy-solution.kr/privacy.html#acha-charge ◼ Terms of Use: https://dy-solution.kr/terms.html
Screenshots
Verdict
The clearest difference is rating: Ah Charge! Controller Battery at 5.0 against KeyLinker's 2.3. Ah Charge! Controller Battery also leads on update cadence (fortnightly vs every 2 months). KeyLinker's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price 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
Both are free to download. Ah Charge! Controller Battery sells 3 in-app purchases, starting at $0.99 per 7 days. KeyLinker asks for nothing beyond the download.
Ah Charge! Controller Battery holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: KeyLinker has 52 ratings behind it against 2, so its average is the more settled of the two.
KeyLinker ships an update every 2 months, Ah Charge! Controller Battery fortnightly. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.
| Parameter | KeyLinker | Ah Charge! Controller Battery |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (52 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 30.2% of reviews | — |
| Number of ratings | 52 — better | 2 |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 38 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | ShenZhen ZhiXu Technology Co., Ltd | DY Solution |
Customer experience
KeyLinker
Ah Charge! Controller Battery
In-app purchases
KeyLinker
No in-app purchases
Ah Charge! Controller Battery
- 아차 충전 ! 프리미엄 스탠다드$0.997 Days
- 아차 충전 ! 프리미엄 스탠다드$2.991 Month
- 아차 충전 ! 프리미엄 스탠다드$29.991 Year
Questions
Is KeyLinker free?
Is Ah Charge! Controller Battery free?
Which has better reviews, KeyLinker or Ah Charge! Controller Battery?
Do KeyLinker or Ah Charge! Controller Battery have ads?
Which is updated more often, KeyLinker or Ah Charge! Controller Battery?
Other comparisons















