Swim Checker vs Microballistics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Swim Checker
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.
- USA Swimming time standards tracking
- Motivational times included
- National meet time standards
- 2019 and 2020 Olympic Trials standards
- Supports Georgia state times
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Swim Checker is an app made for swimmers, parents or coaches tracking USA Swimming standards times. USA Swimming Motivational Times as well as National meet time standards updated for 2026 and 2024 Olympic Trials, and 2028 Motivational time standards. Note: Please notify of any errors that are found, thank you!
Microballistics
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.
- 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
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This is one of the most precise ballistic calculators. The results are verified in the field, it outperforms competition in predicting wind deflection with steep shooting angles. Special features include ballistic comparison of different projectiles, printing out reticle references and ballistic tables. We have a large database of projectiles for air rifles, rimfire and centerfire cartridges. This calculator works with a range of Bluetooth laser rangefinders and can be used to program standalone ballistic rangefinders.
Screenshots
Verdict
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.
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.
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.
| Parameter | Swim Checker | Microballistics |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 2.3 (3 ratings) |
| Positive reviews | 60.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 2 | 3 — better |
| Update frequency | Every 11 days — better | Every 24 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 16.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 4 MB |
| Age rating | 4+ | 17+ |
| Developer | Ken Henry | Microballistics Ltd |
Customer experience
Swim Checker
Microballistics
In-app purchases
Swim Checker
No in-app purchases
Microballistics
No in-app purchases
