# Ideal Conditions vs CelsiUSA

The clearest difference is update cadence: Ideal Conditions at every 3 weeks against CelsiUSA's every 7 months. CelsiUSA's advantage is iOS requirement (16.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Ideal Conditions sells 2 in-app purchases, starting at $0.99 per month and CelsiUSA sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Ideal Conditions ships an update every 3 weeks, CelsiUSA every 7 months. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Ideal Conditions | CelsiUSA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 7 months |
| Size | 9 MB | 12 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Water on the Seed Software Company LLC](https://appshunter.io/developer/1604405335) | [Andrew Myers](https://appshunter.io/developer/1636750818) |

## What reviewers say

### Ideal Conditions

[App page](https://appshunter.io/ios/app/ideal-conditions/id1640489236)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access | $0.99 | per month |
| All Access | $8.99 | per year |


### CelsiUSA

[App page](https://appshunter.io/ios/app/celsiusa/id6449006027)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Ideal Conditions free?

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

### Is CelsiUSA free?

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

### Do Ideal Conditions or CelsiUSA have ads?

Neither Ideal Conditions nor CelsiUSA shows ads.

### Which is updated more often, Ideal Conditions or CelsiUSA?

Ideal Conditions ships an update every 3 weeks, and CelsiUSA every 7 months. Most recently, Ideal Conditions was updated on October 3, 2026 and CelsiUSA on October 1, 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.*