# ChantMaster Sport vs Isca Certa

The clearest difference is in-app purchases: Isca Certa at none against ChantMaster Sport's 3. Isca Certa also leads on update cadence (every 2 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ChantMaster Sport sells 3 in-app purchases, starting at $19.99 per year. Isca Certa asks for nothing beyond the download.

ChantMaster Sport ships an update fortnightly, Isca Certa every 2 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | ChantMaster Sport | Isca Certa |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Size | 55 MB | 76 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [RallyBase LLC](https://appshunter.io/developer/1889567595) | [Dunamis Tech](https://appshunter.io/developer/1801290183) |

## What reviewers say

### ChantMaster Sport

[App page](https://appshunter.io/ios/app/chantmaster-sport/id6757602361)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChantMaster Pro (Founders) | $19.99 | per year |
| ChantMaster Pro | $19.99 | per year |
| Founders Pass | $0.99 | one-time |


### Isca Certa

[App page](https://appshunter.io/ios/app/isca-certa/id6811355081)

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

**In-app purchases:** none


## Frequently asked questions

### Is ChantMaster Sport free?

ChantMaster Sport is free to download, with in-app purchases available.

### Is Isca Certa free?

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

### Do ChantMaster Sport or Isca Certa have ads?

Neither ChantMaster Sport nor Isca Certa shows ads.

### Which is updated more often, ChantMaster Sport or Isca Certa?

ChantMaster Sport ships an update fortnightly, and Isca Certa every 2 days. Most recently, ChantMaster Sport was updated on October 31, 2026 and Isca Certa on October 31, 2026.

---

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