# Viability vs 88 Days Calculator

The clearest difference is review sentiment: Viability at 75% against 88 Days Calculator's 50%. On price, update cadence, 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.

Viability ships an update monthly, 88 Days Calculator every 3 weeks. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Viability | 88 Days Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **75.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 34 MB | 47 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Viability.io](https://appshunter.io/developer/1492222317) | [Adrien Gardes](https://appshunter.io/developer/1519413058) |

## What reviewers say

### Viability

[App page](https://appshunter.io/ios/app/viability/id1589868399)

Streamline cafe, restaurant, and bar operations with this business management tool. It uses machine learning for revenue forecasting, scheduling, and supplier budget feedback to boost profits and provide real-time financial insights.

**Highlights:** Revenue forecasting, Productive scheduling tools, Supplier budget feedback, POS and accounting integration, Real-time financial overview, Machine learning insights

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Viability free?

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

### Is 88 Days Calculator free?

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

### Do Viability or 88 Days Calculator have ads?

Neither Viability nor 88 Days Calculator shows ads.

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

Viability ships an update monthly, and 88 Days Calculator every 3 weeks. Most recently, Viability was updated on October 20, 2026 and 88 Days Calculator on October 24, 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.*