# Sirum vs ImageMeter

The clearest difference is in-app purchases: Sirum at none against ImageMeter's 3. Sirum also leads on iOS requirement (13.0 vs 16.0). ImageMeter's advantage is update cadence (every 4 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. ImageMeter sells 3 in-app purchases, starting at $4.49 per month. Sirum asks for nothing beyond the download.

Sirum ships an update every 2 months, ImageMeter every 4 days. The most recent releases landed on October 18, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Sirum | ImageMeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/imagemeter/id6788150277/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 36 MB | 83 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sirum GmbH](https://appshunter.io/developer/1566855252) | [Dirk Farin](https://appshunter.io/developer/527003846) |

## What reviewers say

### Sirum

[App page](https://appshunter.io/ios/app/sirum/id1566855250)

**In-app purchases:** none


### ImageMeter

[App page](https://appshunter.io/ios/app/imagemeter/id6788150277)

Annotate photos with precise measurements, notes, and audio. Streamline on-site documentation and client communication with clear, visual reports. Supports Bluetooth laser meters and PDF imports for comprehensive project management.

**Highlights:** Draw dimensions and notes on photos, Bluetooth laser meter integration, Measure lengths, areas, and angles, Add audio notes and detail images, Export to JPEG, PNG, and PDF, Cloud sync with popular services, PDF import and form filling

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Business (monthly) | $4.49 | per month |
| Business (yearly) | $42.99 | per year |
| Pro | $18.99 | one-time |


## Frequently asked questions

### Is Sirum free?

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

### Is ImageMeter free?

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

### Do Sirum or ImageMeter have ads?

Neither Sirum nor ImageMeter shows ads.

### Which is updated more often, Sirum or ImageMeter?

Sirum ships an update every 2 months, and ImageMeter every 4 days. Most recently, Sirum was updated on October 18, 2026 and ImageMeter on October 21, 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.*