# Shush vs Calypso Ballistics

The clearest difference is price: Calypso Ballistics at Free against Shush's $0.99. Calypso Ballistics also leads on update cadence (every 5 days vs every 8 months) and iOS requirement (15.0 vs 18.6). On ads, in-app purchases and device support there is nothing between them.

Calypso Ballistics is free to download; Shush costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Shush ships an update every 8 months, Calypso Ballistics every 5 days. The most recent releases landed on November 12, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Shush | Calypso Ballistics |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/shush-silent-haptic-timer/id6738778629/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 days** |
| Monetization | Paid | — |
| Size | 3 MB | 20 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [IBMobile Software](https://appshunter.io/developer/373867960) | [Calypso Instruments](https://appshunter.io/developer/928168289) |

## What reviewers say

### Shush

[App page](https://appshunter.io/ios/app/shush-silent-haptic-timer/id6738778629)

This app uses precise haptic feedback on your wrist to track time silently. Customize vibration intervals to stay aware of time passing without audible alerts, perfect for presentations, focus sessions, or workouts.

**Highlights:** Silent haptic feedback, Customizable vibration intervals, Background timer execution, Focus-friendly for various activities, Optimized for battery life, Native SwiftUI performance

**Features:** Apple Watch app

**In-app purchases:** none


### Calypso Ballistics

[App page](https://appshunter.io/ios/app/calypso-ballistics/id6815266601)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Shush free?

Shush costs $0.99, with no in-app purchases.

### Is Calypso Ballistics free?

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

### Do Shush or Calypso Ballistics have ads?

Neither Shush nor Calypso Ballistics shows ads.

### Which is updated more often, Shush or Calypso Ballistics?

Shush ships an update every 8 months, and Calypso Ballistics every 5 days. Most recently, Shush was updated on November 12, 2026 and Calypso Ballistics on November 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*