# Downtime Terminator vs Spares Scaling

The clearest difference is price: Downtime Terminator at Free against Spares Scaling's $4.99. Spares Scaling's advantage is update cadence (every 9 days vs every 3 weeks) and device support (4 vs 2). On ads and in-app purchases there is nothing between them.

Downtime Terminator is free to download; Spares Scaling costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Downtime Terminator ships an update every 3 weeks, Spares Scaling every 9 days. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Downtime Terminator | Spares Scaling |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | — | Paid |
| Size | 39 MB | 2 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 12+ | 4+ |
| Developer | [Revitalization Autos](https://appshunter.io/developer/1527744183) | [Konstantinos Ladiellis](https://appshunter.io/developer/1516103440) |

## What reviewers say

### Downtime Terminator

[App page](https://appshunter.io/ios/app/downtime-terminator/id1527858419)

**Features:** Vision Pro support

**In-app purchases:** none


### Spares Scaling

[App page](https://appshunter.io/ios/app/spares-scaling/id6447908310)

This app simulates fleet availability using Monte Carlo methods. It calculates service levels based on the number of fleet assets, component reliability, repair times, and spare parts inventory.

**Highlights:** Monte Carlo Simulation, Fleet Availability Calculation, Spare Parts Inventory Management, Component Reliability Analysis, Repair Time (TAT) Input, Scenario-Based Analysis

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Downtime Terminator free?

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

### Is Spares Scaling free?

Spares Scaling costs $4.99, with no in-app purchases.

### Do Downtime Terminator or Spares Scaling have ads?

Neither Downtime Terminator nor Spares Scaling shows ads.

### Which is updated more often, Downtime Terminator or Spares Scaling?

Downtime Terminator ships an update every 3 weeks, and Spares Scaling every 9 days. Most recently, Downtime Terminator was updated on October 29, 2026 and Spares Scaling on October 31, 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.*