# Mould identifier vs Caliper

The clearest difference is update cadence: Caliper at every 6 days against Mould identifier's every 7 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Mould identifier sells 2 in-app purchases, starting at $4.99 per 7 days and Caliper sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Mould identifier ships an update every 7 months, Caliper every 6 days. The most recent releases landed on October 30, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Mould identifier | Caliper |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 2 MB |
| Requires iOS | 18.5 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nikhil Kumar](https://appshunter.io/developer/1783391273) | [UFUK OZDEMIR](https://appshunter.io/developer/1885204934) |

## What reviewers say

### Mould identifier

[App page](https://appshunter.io/ios/app/mould-identifier/id6751037115)

This AI-powered tool scans photos to identify mold species and assess health risks. It offers expert safety guidance, removal tips, and tracking for home inspections. Avoid costly professional assessments with instant, reliable mold detection.

**Highlights:** AI-powered mold scanning, Identify 300+ mold species, Health risk assessment, Expert safety and removal guidance, Scan history log, Cost-effective alternative to professional inspections

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Lifetime Premium | $29.99 | one-time |


### Caliper

[App page](https://appshunter.io/ios/app/caliper-level-ruler-and-angle/id6794116622)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caliper Pro | $4.99 | per month |
| Caliper Pro | $39.99 | per year |


## Frequently asked questions

### Is Mould identifier free?

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

### Is Caliper free?

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

### Do Mould identifier or Caliper have ads?

Neither Mould identifier nor Caliper shows ads.

### Which is updated more often, Mould identifier or Caliper?

Mould identifier ships an update every 7 months, and Caliper every 6 days. Most recently, Mould identifier was updated on October 30, 2026 and Caliper on November 10, 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.*