# Simple Speed Gun vs CallPlay

The clearest difference is in-app purchases: CallPlay at none against Simple Speed Gun's 2. CallPlay also leads on ads (none vs shown) and update cadence (fortnightly vs every 4 months). Simple Speed Gun's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 18.6). On price there is nothing between them.

Both are free to download. Simple Speed Gun sells 2 one-off in-app purchases. CallPlay asks for nothing beyond the download.

Simple Speed Gun ships an update every 4 months, CallPlay fortnightly. The most recent releases landed on October 25, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Simple Speed Gun | CallPlay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (63 ratings)](https://appshunter.io/ios/app/simple-speed-gun/id1630869522/reviews)** | — |
| Number of ratings | **63** | — |
| Positive reviews | 47.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 4 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [NAOYA ONO](https://appshunter.io/developer/1530328146) | [tihon grigorenko](https://appshunter.io/developer/1881098171) |

## What reviewers say

### Simple Speed Gun

[App page](https://appshunter.io/ios/app/simple-speed-gun/id1630869522)

Measure ball speeds accurately using your phone. Simply start and stop the timer as the ball travels to calculate its velocity. Customize distance and speed units for your needs.

**Highlights:** Measure ball speed, Calculate speed using distance and time, Two measurement stop methods, Customizable distance setting, Selectable distance units (meters/feet), Selectable speed units (KPH/MPH)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support Developer | $0.99 | one-time |
| Remove ads | $2.99 | one-time |


### CallPlay

[App page](https://appshunter.io/ios/app/callplay/id6759840880)

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Speed Gun free?

Simple Speed Gun is free to download, with in-app purchases available.

### Is CallPlay free?

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

### Do Simple Speed Gun or CallPlay have ads?

Simple Speed Gun shows ads; CallPlay does not.

### Which is updated more often, Simple Speed Gun or CallPlay?

Simple Speed Gun ships an update every 4 months, and CallPlay fortnightly. Most recently, Simple Speed Gun was updated on October 25, 2026 and CallPlay on October 8, 2026.

---

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