# 88 Days Calculator vs Catalyst Mobile

The clearest difference is in-app purchases: 88 Days Calculator at none against Catalyst Mobile's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Catalyst Mobile sells 1 in-app purchase, starting at $1.99 per month. 88 Days Calculator asks for nothing beyond the download.

88 Days Calculator ships an update every 3 weeks, Catalyst Mobile every 11 days. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 88 Days Calculator | Catalyst Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Monetization | Free | — |
| Size | 47 MB | 69 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Adrien Gardes](https://appshunter.io/developer/1519413058) | [COASTCARE SYDNEY](https://appshunter.io/developer/1820656586) |

## What reviewers say

### 88 Days Calculator

[App page](https://appshunter.io/ios/app/88-days-calculator/id6450987929)

Easily track your farm work days for Australian visa renewal. Add payslips to calculate accumulated days and determine how many more are needed for eligibility. Verify eligible work zones and types to simplify the process.

**Highlights:** Calculate farm work days, Add payslips for tracking, Verify eligible work zones, Check visa renewal eligibility, Track days needed

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

**In-app purchases:** none


### Catalyst Mobile

[App page](https://appshunter.io/ios/app/catalyst-mobile/id6747343293)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access All Features - Monthly | $1.99 | per month |


## Frequently asked questions

### Is 88 Days Calculator free?

88 Days Calculator is free to download, with no in-app purchases.

### Is Catalyst Mobile free?

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

### Do 88 Days Calculator or Catalyst Mobile have ads?

Neither 88 Days Calculator nor Catalyst Mobile shows ads.

### Which is updated more often, 88 Days Calculator or Catalyst Mobile?

88 Days Calculator ships an update every 3 weeks, and Catalyst Mobile every 11 days. Most recently, 88 Days Calculator was updated on October 24, 2026 and Catalyst Mobile on October 9, 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.*