# Swim Checker vs Microballistics

The clearest difference is rating: Swim Checker at 5.0 against Microballistics's 2.3. Swim Checker also leads on update cadence (every 11 days vs every 24 months) and review sentiment (60% vs 50%). Microballistics's advantage is iOS requirement (13.0 vs 16.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Swim Checker holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews point the same way: 60% of Swim Checker's written reviews are positive against 50% of Microballistics's.

Swim Checker ships an update every 11 days, Microballistics every 24 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Swim Checker | Microballistics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/swim-checker/id1119021392/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/microballistics/id1467067380/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | **60.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 24 months |
| Monetization | Free | Free |
| Size | 14 MB | 4 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ken Henry](https://appshunter.io/developer/901991382) | [Microballistics Ltd](https://appshunter.io/developer/1467067379) |

## What reviewers say

### Swim Checker

[App page](https://appshunter.io/ios/app/swim-checker/id1119021392)

This app helps swimmers, parents, and coaches track USA Swimming time standards. It provides updated motivational and national meet time standards for recent Olympic Trials. Future updates plan to include more state and LSC times.

**Highlights:** USA Swimming time standards tracking, Motivational times included, National meet time standards, 2019 and 2020 Olympic Trials standards, Supports Georgia state times

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Swim Checker free?

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

### Is Microballistics free?

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

### Which has better reviews, Swim Checker or Microballistics?

Swim Checker is rated higher. Swim Checker averages 5.0 out of 5 from 2 ratings, while Microballistics averages 2.3 from 3 ratings.

### Do Swim Checker or Microballistics have ads?

Neither Swim Checker nor Microballistics shows ads.

### Which is updated more often, Swim Checker or Microballistics?

Swim Checker ships an update every 11 days, and Microballistics every 24 months. Most recently, Swim Checker was updated on November 2, 2026 and Microballistics on November 3, 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.*