# PERFBOOK vs DelayCam

The clearest difference is in-app purchases: PERFBOOK at none against DelayCam's 1. PERFBOOK also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. DelayCam sells 1 one-off in-app purchase. PERFBOOK asks for nothing beyond the download.

PERFBOOK ships an update every 3 months, DelayCam every 2 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | PERFBOOK | DelayCam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (71 ratings)](https://appshunter.io/ios/app/delaycam-instant-replay/id1494112454/reviews)** |
| Number of ratings | — | **71** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 0 MB | 19 MB |
| Requires iOS | 15.6 | **15** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Marc ESCURIEUX](https://appshunter.io/developer/1339198219) | [Meanterm Inc.](https://appshunter.io/developer/403684796) |

## What reviewers say

### PERFBOOK

[App page](https://appshunter.io/ios/app/perfbook/id1339198220)

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

**In-app purchases:** none


### DelayCam

[App page](https://appshunter.io/ios/app/delaycam-instant-replay/id1494112454)

This app provides a continuous video feed of recent seconds, ideal for analyzing sports movements in real-time. It allows for self-feedback, professional coaching, and adjustable recording durations. Switch between front and back cameras easily for comprehensive analysis.

**Highlights:** Continuous recent seconds video feed, Real-time movement observation, Self-feedback and improvement, Professional coaching tool, Adjustable display and recording time, Front and back camera selection

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DelayCam Premium Upgrade | $2.99 | one-time |


## Frequently asked questions

### Is PERFBOOK free?

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

### Is DelayCam free?

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

### Do PERFBOOK or DelayCam have ads?

DelayCam shows ads; PERFBOOK does not.

### Which is updated more often, PERFBOOK or DelayCam?

PERFBOOK ships an update every 3 months, and DelayCam every 2 months. Most recently, PERFBOOK was updated on November 2, 2026 and DelayCam on November 7, 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.*