# Kairos vs ProgressPic

The clearest difference is price: ProgressPic at Free against Kairos's $0.99. ProgressPic also leads on iOS requirement (16.0 vs 26.1). Kairos's advantage is in-app purchases (none vs 3). On update cadence, ads and device support there is nothing between them.

ProgressPic is free to download; Kairos costs $0.99 up front. ProgressPic sells 3 in-app purchases, starting at $2.99 per month. Kairos asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Kairos | ProgressPic |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Size | 22 MB | 4 MB |
| Requires iOS | 26.1 | **16.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Paul Davis](https://appshunter.io/developer/1877163862) | [Yaswanth Raja](https://appshunter.io/developer/6774077833) |

## What reviewers say

### Kairos

[App page](https://appshunter.io/ios/app/kairos-intimacy-tracker/id6759538995)

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

**In-app purchases:** none


### ProgressPic

[App page](https://appshunter.io/ios/app/progresspic-before-after/id6774994497)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ProgressPic Pro — Monthly | $2.99 | per month |
| ProgressPic Pro — Yearly | $19.99 | per year |
| ProgressPic Pro — Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Kairos free?

Kairos costs $0.99, with no in-app purchases.

### Is ProgressPic free?

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

### Do Kairos or ProgressPic have ads?

Neither Kairos nor ProgressPic shows ads.

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

Kairos ships an update every 2 weeks, and ProgressPic every 2 weeks. Most recently, Kairos was updated on October 24, 2026 and ProgressPic 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.*