# PERFBOOK vs ESU Rec

The clearest difference is ads: PERFBOOK at none against ESU Rec's shown. PERFBOOK also leads on update cadence (every 3 months vs every 7 months). ESU Rec's advantage is iOS requirement (13.0 vs 15.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PERFBOOK ships an update every 3 months, ESU Rec every 7 months. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | PERFBOOK | ESU Rec |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/esu-rec/id6740924635/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | — | Ad-supported |
| Size | 0 MB | 71 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Marc ESCURIEUX](https://appshunter.io/developer/1339198219) | [East Stroudsburg University](https://appshunter.io/developer/688275480) |

## What reviewers say

### PERFBOOK

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

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

**In-app purchases:** none


### ESU Rec

[App page](https://appshunter.io/ios/app/esu-rec/id6740924635)

Stay informed about East Stroudsburg Campus Recreation programs and facilities. Access intramural sports registrations, schedules, standings, and results instantly.

**Highlights:** Intramural sports registration, Schedules and standings, Results tracking, Facility updates, Program information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PERFBOOK free?

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

### Is ESU Rec free?

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

### Do PERFBOOK or ESU Rec have ads?

ESU Rec shows ads; PERFBOOK does not.

### Which is updated more often, PERFBOOK or ESU Rec?

PERFBOOK ships an update every 3 months, and ESU Rec every 7 months. Most recently, PERFBOOK was updated on October 9, 2026 and ESU Rec on October 4, 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.*