# Olypsys Measure vs Bolt Thread Identifier

The clearest difference is rating: Olypsys Measure at 3.0 against Bolt Thread Identifier's 2.3. Olypsys Measure also leads on review sentiment (67% vs 33%) and update cadence (every 4 weeks vs every 11 months). Bolt Thread Identifier's advantage is in-app purchases (none vs 3). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Olypsys Measure sells 3 in-app purchases, starting at $10.00 per month. Bolt Thread Identifier asks for nothing beyond the download.

Olypsys Measure holds the better App Store score, 3.0 against 2.3. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews point the same way: 67% of Olypsys Measure's written reviews are positive against 33% of Bolt Thread Identifier's.

Olypsys Measure ships an update every 4 weeks, Bolt Thread Identifier every 11 months. The most recent releases landed on September 17, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Olypsys Measure | Bolt Thread Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (4 ratings)](https://appshunter.io/ios/app/olypsys-measure/id1583943944/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/bolt-thread-identifier/id6468966021/reviews) |
| Number of ratings | **4** | 3 |
| Positive reviews | **66.7% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 11 months |
| Monetization | Freemium | **Free** |
| Size | 101 MB | 58 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Olypsys Technologies Ltd](https://appshunter.io/developer/1583943946) | [Geared Design Consulting L.L.C.](https://appshunter.io/developer/1732325276) |

## 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 |


### Bolt Thread Identifier

[App page](https://appshunter.io/ios/app/bolt-thread-identifier/id6468966021)

Identify bolt thread pitches by taking a photo. This app uses AI to match SAE-UNC, SAE-UNF, or metric pitches after a simple distance calibration. It's a handy tool for anyone working with fasteners.

**Highlights:** Photo-based thread pitch measurement, AI-driven pitch matching, Supports SAE-UNC, SAE-UNF, and metric threads, Simple distance calibration, Useful for fabricators and mechanics

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Olypsys Measure free?

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

### Is Bolt Thread Identifier free?

Bolt Thread Identifier is free to download, with no in-app purchases.

### Which has better reviews, Olypsys Measure or Bolt Thread Identifier?

Olypsys Measure is rated higher. Olypsys Measure averages 3.0 out of 5 from 4 ratings, while Bolt Thread Identifier averages 2.3 from 3 ratings.

### Do Olypsys Measure or Bolt Thread Identifier have ads?

Neither Olypsys Measure nor Bolt Thread Identifier shows ads.

### Which is updated more often, Olypsys Measure or Bolt Thread Identifier?

Olypsys Measure ships an update every 4 weeks, and Bolt Thread Identifier every 11 months. Most recently, Olypsys Measure was updated on September 17, 2026 and Bolt Thread Identifier on September 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*