# Photo Time Lock vs Kairos

The clearest difference is price: Kairos at Free against Photo Time Lock's $9.99. Kairos also leads on update cadence (every 4 days vs every 55 months). Photo Time Lock's advantage is iOS requirement (8.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Kairos is free to download; Photo Time Lock costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Photo Time Lock ships an update every 55 months, Kairos every 4 days. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Photo Time Lock | Kairos |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.2 (14 ratings)](https://appshunter.io/ios/app/photo-time-lock-time-delay-image-lock/id563756712/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 63.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 55 months | **Every 4 days** |
| Monetization | Paid | — |
| Size | 2 MB | 36 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Falcon In Motion LLC](https://appshunter.io/developer/402698692) | [Benno Kohrs](https://appshunter.io/developer/1858491109) |

## What reviewers say

### Photo Time Lock

[App page](https://appshunter.io/ios/app/photo-time-lock-time-delay-image-lock/id563756712)

This app allows users to securely lock photos for a set duration, ranging from one minute to 365 days. It utilizes a timer-based system, preventing access to the photo until the countdown is complete. An optional keyholder feature allows designated individuals to unlock photos early.

**Highlights:** Time-delay photo locking, Lock duration up to 365 days, NTP server time verification, Keyholder unlock option, Intuitive and repeatable locking

**In-app purchases:** none


### Kairos

[App page](https://appshunter.io/ios/app/kairos-random-timer/id6759820843)

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

**In-app purchases:** none


## Frequently asked questions

### Is Photo Time Lock free?

Photo Time Lock costs $9.99, with no in-app purchases.

### Is Kairos free?

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

### Do Photo Time Lock or Kairos have ads?

Neither Photo Time Lock nor Kairos shows ads.

### Which is updated more often, Photo Time Lock or Kairos?

Photo Time Lock ships an update every 55 months, and Kairos every 4 days. Most recently, Photo Time Lock was updated on October 23, 2026 and Kairos 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.*