# Custom Running Intervals vs Rondo

The clearest difference is in-app purchases: Rondo at none against Custom Running Intervals's 1. Rondo also leads on update cadence (every 2 weeks vs every 3 months). Custom Running Intervals's advantage is iOS requirement (16.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Custom Running Intervals sells 1 one-off in-app purchase. Rondo asks for nothing beyond the download.

Custom Running Intervals ships an update every 3 months, Rondo every 2 weeks. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Custom Running Intervals | Rondo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/custom-running-intervals/id1533333253/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 3 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [John Mallonee](https://appshunter.io/developer/1520115384) | [Anton Litmansky](https://appshunter.io/developer/1818644150) |

## What reviewers say

### Custom Running Intervals

[App page](https://appshunter.io/ios/app/custom-running-intervals/id1533333253)

Create custom running workouts with flexible intervals based on time or distance. Track progress, build training plans, and analyze past runs with detailed results. Your data is private and stored securely on your device or iCloud.

**Highlights:** Configurable time or distance intervals, Repeatable interval blocks, Training plan calendar, Historical run analysis, Apple Watch monitoring, iCloud synchronization, Data privacy

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Capabilities | $0.99 | one-time |


### Rondo

[App page](https://appshunter.io/ios/app/rondo-custom-interval-timer/id6798016716)

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

**In-app purchases:** none


## Frequently asked questions

### Is Custom Running Intervals free?

Custom Running Intervals is free to download, with in-app purchases available.

### Is Rondo free?

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

### Do Custom Running Intervals or Rondo have ads?

Neither Custom Running Intervals nor Rondo shows ads.

### Which is updated more often, Custom Running Intervals or Rondo?

Custom Running Intervals ships an update every 3 months, and Rondo every 2 weeks. Most recently, Custom Running Intervals was updated on October 9, 2026 and Rondo on October 6, 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.*