# Calipsa vs FlickerSpec

The clearest difference is in-app purchases: Calipsa at none against FlickerSpec's 1. Calipsa also leads on device support (3 vs 1) and iOS requirement (13.4 vs 26.0). On price, update cadence and ads there is nothing between them.

Both are free to download. FlickerSpec sells 1 one-off in-app purchase. Calipsa asks for nothing beyond the download.

Calipsa ships an update every 5 weeks, FlickerSpec every 4 weeks. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Calipsa | FlickerSpec |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/calipsa/id1480554843/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 59 MB | 12 MB |
| Requires iOS | **13.4** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Motorola Solutions, Inc](https://appshunter.io/developer/556842600) | [Corey Thomas Slick](https://appshunter.io/developer/1818871667) |

## What reviewers say

### Calipsa

[App page](https://appshunter.io/ios/app/calipsa/id1480554843)

This platform uses machine learning to reduce false alarms in video monitoring. It helps detect and prevent crime by revolutionizing alarm management.

**Highlights:** Cloud-based alarm filtering, False alarm reduction, Machine learning technology, Video monitoring enhancement, Crime detection and prevention

**Features:** macOS Compatibility

**In-app purchases:** none


### FlickerSpec

[App page](https://appshunter.io/ios/app/flickerspec-led-flicker-test/id6759629660)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlickerSpec Pro | $49.99 | one-time |


## Frequently asked questions

### Is Calipsa free?

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

### Is FlickerSpec free?

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

### Do Calipsa or FlickerSpec have ads?

Neither Calipsa nor FlickerSpec shows ads.

### Which is updated more often, Calipsa or FlickerSpec?

Calipsa ships an update every 5 weeks, and FlickerSpec every 4 weeks. Most recently, Calipsa was updated on October 23, 2026 and FlickerSpec on October 29, 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.*