# MultiSens vs Bolt Torque Spec Calc

The clearest difference is price: MultiSens at Free against Bolt Torque Spec Calc's $4.99. MultiSens also leads on rating (5.0 vs 3.0) and ratings volume (3 vs 1). Bolt Torque Spec Calc's advantage is update cadence (every 3 weeks vs every 2 months). On ads, in-app purchases and device support there is nothing between them.

MultiSens is free to download; Bolt Torque Spec Calc costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MultiSens holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

MultiSens ships an update every 2 months, Bolt Torque Spec Calc every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | MultiSens | Bolt Torque Spec Calc |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/multisens-1234/id1533837949/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/bolt-torque-spec-calc/id6760930975/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Paid |
| Size | 99 MB | 1 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sens-OS](https://appshunter.io/developer/1533837951) | [Shanghai Sheyuan Network Technology Co., Ltd.](https://appshunter.io/developer/1560626858) |

## What reviewers say

### MultiSens

[App page](https://appshunter.io/ios/app/multisens-1234/id1533837949)

This application allows users to test various machine condition monitoring sensors. It connects to sensors, displays Time Waveform and Vibration Spectrum graphs, and auto-calibrates for data acquisition.

**Highlights:** Test machine condition monitoring sensors, Connect to sensors, Plot Time Waveform graph, Plot Vibration Spectrum (Acceleration, dB, Velocity), Auto-calibrate to sensors, Data acquisition with adjustable sampling rates and sample counts

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

**In-app purchases:** none


### Bolt Torque Spec Calc

[App page](https://appshunter.io/ios/app/bolt-torque-spec-calc/id6760930975)

Calculates bolt torque specifications for various SAE and metric sizes and grades. Provides results in both ft-lb and N·m, accounting for dry or lubricated conditions. Works offline without ads or subscriptions.

**Highlights:** SAE and Metric bolt specifications, 28 SAE and 17 Metric sizes, Dry vs. Lubricated multiplier, Torque in ft-lb and N·m, Offline functionality, Formula and K factor shown

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

**In-app purchases:** none


## Frequently asked questions

### Is MultiSens free?

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

### Is Bolt Torque Spec Calc free?

Bolt Torque Spec Calc costs $4.99, with no in-app purchases.

### Which has better reviews, MultiSens or Bolt Torque Spec Calc?

MultiSens is rated higher. MultiSens averages 5.0 out of 5 from 3 ratings, while Bolt Torque Spec Calc averages 3.0 from 1 ratings.

### Do MultiSens or Bolt Torque Spec Calc have ads?

Neither MultiSens nor Bolt Torque Spec Calc shows ads.

### Which is updated more often, MultiSens or Bolt Torque Spec Calc?

MultiSens ships an update every 2 months, and Bolt Torque Spec Calc every 3 weeks. Most recently, MultiSens was updated on November 3, 2026 and Bolt Torque Spec Calc on October 31, 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.*