# Olypsys Measure vs StringAlignPro

The clearest difference is price: Olypsys Measure at Free against StringAlignPro's $9.99. StringAlignPro's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On update cadence, ads and iOS requirement there is nothing between them.

Olypsys Measure is free to download; StringAlignPro costs $9.99 up front. Olypsys Measure sells 3 in-app purchases, starting at $10.00 per month. StringAlignPro asks for nothing beyond the download.

Olypsys Measure ships an update every 4 weeks, StringAlignPro every 2 weeks. The most recent releases landed on October 4, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Olypsys Measure | StringAlignPro |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[3.2 (6 ratings)](https://appshunter.io/ios/app/olypsys-measure/id1583943944/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 2 weeks** |
| Monetization | Freemium | — |
| Size | 101 MB | 2 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Olypsys Technologies Ltd](https://appshunter.io/developer/1583943946) | [RaceTracs Ltd](https://appshunter.io/developer/1852276263) |

## What reviewers say

### Olypsys Measure

[App page](https://appshunter.io/ios/app/olypsys-measure/id1583943944)

This app helps businesses accurately measure and identify O-rings using their phone. It matches measurements against international standards and maintains an audit record with project details. Ideal for quality control during goods-inward inspection, part replacement, and pre-assembly checks.

**Highlights:** Accurate O-ring measurement, O-ring identification, Match against international standards, Audit record keeping, Project reference and location tagging, Goods-inward inspection tool

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Olypsys Pro Monthly | $10.00 | per month |
| Pro (yearly) | $80.00 | per year |
| Olypsys Enterprise Yearly | $600.00 | per year |


### StringAlignPro

[App page](https://appshunter.io/ios/app/stringalignpro/id6780426421)

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

**In-app purchases:** none


## Frequently asked questions

### Is Olypsys Measure free?

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

### Is StringAlignPro free?

StringAlignPro costs $9.99, with no in-app purchases.

### Do Olypsys Measure or StringAlignPro have ads?

Neither Olypsys Measure nor StringAlignPro shows ads.

### Which is updated more often, Olypsys Measure or StringAlignPro?

Olypsys Measure ships an update every 4 weeks, and StringAlignPro every 2 weeks. Most recently, Olypsys Measure was updated on October 4, 2026 and StringAlignPro on September 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.*