# ClinoScope vs Perci

The clearest difference is price: Perci at Free against ClinoScope's $3.99. Perci also leads on update cadence (fortnightly vs every 11 months) and device support (3 vs 1). ClinoScope's advantage is in-app purchases (none vs 6). On review sentiment and ads there is nothing between them.

Perci is free to download; ClinoScope costs $3.99 up front. Perci sells 6 in-app purchases, starting at $3.99 per month. ClinoScope asks for nothing beyond the download.

ClinoScope ships an update every 11 months, Perci fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | ClinoScope | Perci |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[4.9 (16 ratings)](https://appshunter.io/ios/app/perci/id6449716815/reviews)** |
| Number of ratings | — | **16** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 0 MB | 73 MB |
| Requires iOS | 26.0 | **13.2** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [Perci Ready LLC](https://appshunter.io/developer/1679170598) |

## What reviewers say

### ClinoScope

[App page](https://appshunter.io/ios/app/clinoscope/id1105812601)

This tool measures tilt angles and object inclination using your device's sensors. It offers real-time display of slopes and angles in different modes, with the ability to save measurements as images.

**Highlights:** Measures 3D angles of elevation, slope, and inclination, INCLINE mode for inclinometer readings, TIME mode for gyro-positioning time graph, Adjustable sensor sampling period, Snapshot feature to save measurements, Supports various iPhone orientations

**In-app purchases:** none


### Perci

[App page](https://appshunter.io/ios/app/perci/id6449716815)

Create personalized disaster readiness plans for your family with ease. This app generates comprehensive plans for various emergencies, including evacuation, home protection, and pet safety. Stay informed with extreme weather alerts and receive timely reminders to update your plans.

**Highlights:** Personalized readiness plans, Evacuation and home protection plans, Pet safety and school safety plans, Household needs and communication plans, Extreme weather alerts, Plan update reminders

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Solo Monthly | $3.99 | per month |
| Duo | $5.99 | per month |
| Family | $7.99 | per month |
| Solo | $39.99 | per year |
| Duo | $59.99 | per year |
| Family | $79.99 | per year |


## Frequently asked questions

### Is ClinoScope free?

ClinoScope costs $3.99, with no in-app purchases.

### Is Perci free?

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

### Do ClinoScope or Perci have ads?

Neither ClinoScope nor Perci shows ads.

### Which is updated more often, ClinoScope or Perci?

ClinoScope ships an update every 11 months, and Perci fortnightly. Most recently, ClinoScope was updated on October 24, 2026 and Perci 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.*