Vibration Timer vs Keltron AIR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Vibration Timer
This utility app provides a silent timer that relies solely on vibration for notifications. It offers unlimited preset timers with customizable labels and colors, and can send strong vibration alerts even when the app is in the background. The interface supports dark mode and displays an icon badge when a timer is active.
- Silent vibration-only notifications
- Unlimited preset timers
- Customizable timer labels and colors
- Background vibration alerts
- Icon badge display
- Dark mode support
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It's a timer app with no sound & only vibration. All features are completely free to use. - Unlimited preset timers - Timer can be specified up to the number of seconds - Set labels and colors for timers - Notification with strong vibration while the app is running - Vibrate notification up to 60 times even in the background - Icon badge display while timer is running - dark mode URL scheme: vibrationtimer://
Keltron AIR
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Using Keltron's registration, maintenance, and service features, you can monitor your Keltron devices as needed to ensure proper functionality.
Screenshots
Verdict
The clearest difference is ads: Keltron AIR at none against Vibration Timer's shown. Keltron AIR also leads on update cadence (every 3 months vs every 11 months) and iOS requirement (15.0 vs 26.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Vibration Timer ships an update every 11 months, Keltron AIR every 3 months. The most recent releases landed on November 3, 2026 and October 1, 2026 respectively.
| Parameter | Vibration Timer | Keltron AIR |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (16 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 16 — better | — |
| Update frequency | Every 11 months | Every 3 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | FugaPiyo Inc. | Keltront IoT Corporation |
In-app purchases
Vibration Timer
No in-app purchases
Keltron AIR
No in-app purchases
Questions
Is Vibration Timer free?
Is Keltron AIR free?
Do Vibration Timer or Keltron AIR have ads?
Which is updated more often, Vibration Timer or Keltron AIR?
Other comparisons
