# Subsync vs SF ESS

Subsync and SF ESS both sit at 4.8 stars, but that hides the real split: 91% of Subsync's written reviews are positive against 3% of SF ESS's. Subsync also leads on update cadence (every 2 weeks vs monthly). SF ESS's advantage is ratings volume (8.4K vs 44). On price, rating, ads and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.8 for Subsync against 4.7 for SF ESS. That said, the two scores are not equally well evidenced: SF ESS has 8.4K ratings behind it against 44, so its average is the more settled of the two. Written reviews are what separate them: 91% of Subsync's written reviews are positive against 3% of SF ESS's.

Subsync ships an update every 2 weeks, SF ESS monthly. The most recent releases landed on October 12, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Subsync | SF ESS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (44 ratings)](https://appshunter.io/ios/app/subsync/id1470798021/reviews)** | [4.7 (8.4K ratings)](https://appshunter.io/ios/app/sf-ess/id1483947998/reviews) |
| Number of ratings | 44 | **8.4K** |
| Positive reviews | **90.9% of reviews** | 2.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 30 MB | 30 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Subsync Inc.](https://appshunter.io/developer/1475927640) | [StoreForce Solutions Inc.](https://appshunter.io/developer/481422456) |

## What reviewers say

### Subsync

[App page](https://appshunter.io/ios/app/subsync/id1470798021)

This app helps Mindbody teachers manage class substitutions. Easily submit requests for a substitute teacher, and once accepted, the app automatically updates your schedule and notifies everyone involved.

**Highlights:** Submit substitute requests, Accept substitute requests, Automatic schedule updates, Notifications for changes, Mindbody integration

**Features:** macOS Compatibility

**In-app purchases:** none


### SF ESS

[App page](https://appshunter.io/ios/app/sf-ess/id1483947998)

Manage your work schedule, request time off, and view performance metrics. Receive important communication updates directly from your employer. Features may differ based on your specific retailer.

**Highlights:** Schedule management, Time off requests, Performance viewing, Communication updates, Retailer-specific options

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Convenient scheduling
- 💡 Ability to sync with calendar

**What reviewers complain about**

- 🐛 Constant glitches and crashes
- 💤 Slow and unresponsive
- 🤯 Confusing and unintuitive UI
- 🔒 Login issues and lack of security features

**Reported bugs**

- Can't log in or access schedule
- Shifts not updating or displaying correctly
- Constant crashing and freezing
- Notification issues

**Requested features**

- Bring back monthly calendar view
- Improve scheduling visibility and clarity
- Add ability to see coworker schedules
- Integrate with more calendar apps


## Frequently asked questions

### Is Subsync free?

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

### Is SF ESS free?

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

### Which has better reviews, Subsync or SF ESS?

Subsync is rated higher. Subsync averages 4.8 out of 5 from 44 ratings, while SF ESS averages 4.7 from 8.4K ratings.

### Do Subsync or SF ESS have ads?

Neither Subsync nor SF ESS shows ads.

### Which is updated more often, Subsync or SF ESS?

Subsync ships an update every 2 weeks, and SF ESS monthly. Most recently, Subsync was updated on October 12, 2026 and SF ESS on October 22, 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.*