# Substitutes vs SOL

The clearest difference is iOS requirement: SOL at 15.4 against Substitutes's 18. On price, ads, 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.

## The numbers

| Metric | Substitutes | SOL |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | — |
| Size | 3 MB | 31 MB |
| Requires iOS | 18 | **15.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jan Wittler](https://appshunter.io/developer/805834216) | [Medienbildung Mainz](https://appshunter.io/developer/1632191937) |

## What reviewers say

### Substitutes

[App page](https://appshunter.io/ios/app/substitutes/id805834213)

Access your school's substitution schedule directly on your iPhone or iPad. Stay updated automatically with timetable changes, even offline. You can also input your personal schedule for a consolidated view of all your classes and substitutions.

**Highlights:** Real-time substitution plan updates, Offline access to schedule, Personal timetable input, Automatic course synchronization, Supports schools across Germany

**In-app purchases:** none


### SOL

[App page](https://appshunter.io/ios/app/sol-connect/id1632191935)

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

**In-app purchases:** none


## Frequently asked questions

### Is Substitutes free?

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

### Is SOL free?

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

### Do Substitutes or SOL have ads?

Neither Substitutes nor SOL shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*