# Kairos vs GymGainz

The clearest difference is ads: Kairos at none against GymGainz's shown. Kairos also leads on update cadence (every 6 days vs every 2 weeks). GymGainz's advantage is iOS requirement (13.0 vs 16.4). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Kairos sells 3 in-app purchases, starting at $4.99 per month and GymGainz sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Kairos ships an update every 6 days, GymGainz every 2 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Kairos | GymGainz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gymgainz-workout-tracker/id6757083311/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | — | Free |
| Size | 105 MB | 373 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HonestyVision](https://appshunter.io/developer/1804536258) | [Otonye Bestman](https://appshunter.io/developer/1466177310) |

## What reviewers say

### Kairos

[App page](https://appshunter.io/ios/app/kairos-interval-timer/id6743784042)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro subscription monthly | $4.99 | per month |
| Pro subscription annually | $24.99 | per year |
| Lifetime Pro subscription | $19.99 | one-time |


### GymGainz

[App page](https://appshunter.io/ios/app/gymgainz-workout-tracker/id6757083311)

Log workouts, monitor progress, and stay motivated with a simple, powerful tool. Designed for lifters of all levels, it helps you track sets, reps, weights, and visualize your gains over time. Focus on your training with a clean, efficient interface.

**Highlights:** Workout logging, Progress monitoring, Routine creation, Personal record tracking, Performance visualization, Flexible logging options

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access premium - Monthly | $3.99 | per month |
| Access premium - Yearly | $24.99 | per year |
| Lifetime | $69.99 | one-time |


## Frequently asked questions

### Is Kairos free?

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

### Is GymGainz free?

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

### Do Kairos or GymGainz have ads?

GymGainz shows ads; Kairos does not.

### Which is updated more often, Kairos or GymGainz?

Kairos ships an update every 6 days, and GymGainz every 2 weeks. Most recently, Kairos was updated on October 30, 2026 and GymGainz on November 5, 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.*