# Microballistics vs Swimming Timer

The clearest difference is review sentiment: Swimming Timer at 100% against Microballistics's 50%. Swimming Timer also leads on rating (5.0 vs 2.3) and update cadence (every 3 months vs every 24 months). Microballistics's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, ratings volume, device support and iOS requirement there is nothing between them.

Both are free to download. Swimming Timer sells 2 one-off in-app purchases. Microballistics asks for nothing beyond the download.

Swimming Timer holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 50% of Microballistics's written reviews are positive against 100% of Swimming Timer's.

Microballistics ships an update every 24 months, Swimming Timer every 3 months. The most recent releases landed on June 1, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Microballistics | Swimming Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/microballistics/id1467067380/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/swimming-timer/id1627209712/reviews)** |
| Number of ratings | 3 | **4** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 24 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 34 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Microballistics Ltd](https://appshunter.io/developer/1467067379) | [NAOYA ONO](https://appshunter.io/developer/1530328146) |

## What reviewers say

### Microballistics

[App page](https://appshunter.io/ios/app/microballistics/id1467067380)

A highly accurate ballistic calculator for firearms and air rifles. It predicts wind deflection with steep shooting angles and offers features like projectile comparison and reticle reference printing. Includes a large database of ammunition types.

**Highlights:** Precise ballistic calculations, Wind deflection prediction for steep angles, Ballistic comparison of different projectiles, Printable reticle references and tables, Large database of projectiles, Bluetooth laser rangefinder integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Swimming Timer

[App page](https://appshunter.io/ios/app/swimming-timer/id1627209712)

This app helps swimmers practice race starts with customizable timers and randomized delays. It also functions as a stopwatch to accurately measure lap and split times during training. Results can be saved and organized by date, with customizable event names and color themes.

**Highlights:** Customizable race start timer, Randomized start delays, Lap and split time measurement, Save and view results by date, Editable event names, Customizable color themes

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support Developer | $0.99 | one-time |
| Remove ads | $6.99 | one-time |


## Frequently asked questions

### Is Microballistics free?

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

### Is Swimming Timer free?

Swimming Timer is free to download, with in-app purchases available.

### Which has better reviews, Microballistics or Swimming Timer?

Swimming Timer is rated higher. Microballistics averages 2.3 out of 5 from 3 ratings, while Swimming Timer averages 5.0 from 4 ratings.

### Do Microballistics or Swimming Timer have ads?

Swimming Timer shows ads; Microballistics does not.

### Which is updated more often, Microballistics or Swimming Timer?

Microballistics ships an update every 24 months, and Swimming Timer every 3 months. Most recently, Microballistics was updated on June 1, 2026 and Swimming Timer on September 25, 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.*