# Kailo vs Perkly Caffeine Tracker

The clearest difference is update cadence: Kailo at weekly against Perkly Caffeine Tracker's every 5 weeks. Kailo also leads on device support (4 vs 1) and iOS requirement (15.6 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Kailo sells 1 in-app purchase, starting at $9.99 per month and Perkly Caffeine Tracker sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Kailo ships an update weekly, Perkly Caffeine Tracker every 5 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Kailo | Perkly Caffeine Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (13 ratings)](https://appshunter.io/ios/app/kailo-running-plus-data/id6752672094/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 5 weeks |
| Monetization | Freemium | — |
| Size | 155 MB | 44 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [GetFast AI, Inc.](https://appshunter.io/developer/1840503243) | [BORNLY ApS](https://appshunter.io/developer/1441942350) |

## What reviewers say

### Kailo

[App page](https://appshunter.io/ios/app/kailo-running-plus-data/id6752672094)

Share your real-time running and cycling stats with loved ones. This app uses advanced machine learning to analyze your training data, providing accurate race predictions and personalized insights. Explore your progress through interactive charts and conversational data queries.

**Highlights:** Live location, pace, and distance sharing, Intelligent training analysis, Accurate marathon time predictions, Beautiful data visualizations, Conversational data querying, Strava and Garmin integration

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GetFast Pro Monthly | $9.99 | per month |


### Perkly Caffeine Tracker

[App page](https://appshunter.io/ios/app/perkly-caffeine-tracker/id6795054894)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Perkly Pro | $5.99 | one-time |


## Frequently asked questions

### Is Kailo free?

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

### Is Perkly Caffeine Tracker free?

Perkly Caffeine Tracker is free to download, with in-app purchases available.

### Do Kailo or Perkly Caffeine Tracker have ads?

Neither Kailo nor Perkly Caffeine Tracker shows ads.

### Which is updated more often, Kailo or Perkly Caffeine Tracker?

Kailo ships an update weekly, and Perkly Caffeine Tracker every 5 weeks. Most recently, Kailo was updated on October 30, 2026 and Perkly Caffeine Tracker on October 31, 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.*