Comparison

Vibration Timer vs ParallelCalculator

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

Head to head
About

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.

Highlights
  • Silent vibration-only notifications
  • Unlimited preset timers
  • Customizable timer labels and colors
  • Background vibration alerts
  • Icon badge display
  • Dark mode support
Features
Read full description

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://

About

ParallelCalculator

Features
Read full description

ParallelCalculatorは、複数の計算をタブで切り替えながら使えるシンプルな電卓アプリです。 買い物、割り勘、収入計算、メモ代わりの計算など、別々に管理したい計算をタブごとに分けて使えます。 計算の途中で別の計算をしたくなっても、タブを切り替えるだけで前の計算を残したまま続けられます。 利用規約: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Vibration Timer4 screens
ParallelCalculator3 screens

Verdict

The call

The clearest difference is in-app purchases: Vibration Timer at none against ParallelCalculator's 2. ParallelCalculator's advantage is iOS requirement (15.1 vs 26.0). On price, ads 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. ParallelCalculator sells 2 in-app purchases, starting at $1.99 per month. Vibration Timer asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Vibration Timer versus ParallelCalculator: the parameters behind the verdict, then further details
ParameterVibration TimerParallelCalculator
PriceFreeFree
Rating4.3 (13 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings13 — better—
Update frequencyEvery 11 months—
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.1 — better
Further details — not scored
Size10 MB38 MB
Age rating4+4+
DeveloperFugaPiyo Inc.Ryusei Wakita

In-app purchases

None

Vibration Timer

No in-app purchases

2 purchases

ParallelCalculator

Subscriptions2
  • プレミアム 月額プラン$1.991 Month
  • プレミアム 年額プラン$19.991 Year

Questions

Is Vibration Timer free?
Vibration Timer is free to download, with no in-app purchases.
Is ParallelCalculator free?
ParallelCalculator is free to download, with in-app purchases available.
Do Vibration Timer or ParallelCalculator have ads?
Both Vibration Timer and ParallelCalculator show ads.

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