# Tabata Timer vs KesselRUN Running

The clearest difference is update cadence: KesselRUN Running at every 9 days against Tabata Timer's every 5 months. KesselRUN Running also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Tabata Timer ships an update every 5 months, KesselRUN Running every 9 days. The most recent releases landed on October 16, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Tabata Timer | KesselRUN Running |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 9 days** |
| Size | 23 MB | 33 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sang Min Kim](https://appshunter.io/developer/1625895027) | [ThreeLees LLC](https://appshunter.io/developer/6778656941) |

## What reviewers say

### Tabata Timer

[App page](https://appshunter.io/ios/app/tabata-timer-interval-and-hiit/id6746740629)

**Features:** macOS Compatibility

**In-app purchases:** none


### KesselRUN Running

[App page](https://appshunter.io/ios/app/kesselrun-running/id6781022500)

**In-app purchases:** none


## Frequently asked questions

### Is Tabata Timer free?

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

### Is KesselRUN Running free?

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

### Do Tabata Timer or KesselRUN Running have ads?

Neither Tabata Timer nor KesselRUN Running shows ads.

### Which is updated more often, Tabata Timer or KesselRUN Running?

Tabata Timer ships an update every 5 months, and KesselRUN Running every 9 days. Most recently, Tabata Timer was updated on October 16, 2026 and KesselRUN Running on October 25, 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.*