# SolarTrack vs Celeris

The clearest difference is device support: Celeris at 4 against SolarTrack's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. SolarTrack sells 2 in-app purchases, starting at $4.99 per 7 days and Celeris sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | SolarTrack | Celeris |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 6 MB | 85 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [HONG KONG WOOKAKA PET PRODUCTS CO., LIMITED](https://appshunter.io/developer/1821243531) | [Stefan Engel](https://appshunter.io/developer/893179878) |

## What reviewers say

### SolarTrack

[App page](https://appshunter.io/ios/app/solartrack-sun-moon-tracker/id6760690667)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Boost | $4.99 | per 7 days |
| Yearly Boost | $39.99 | per year |


### Celeris

[App page](https://appshunter.io/ios/app/celeris-photo-planner/id6795455170)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $8.99 | one-time |


## Frequently asked questions

### Is SolarTrack free?

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

### Is Celeris free?

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

### Do SolarTrack or Celeris have ads?

Neither SolarTrack nor Celeris shows ads.

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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.*