Bolt Torque vs Sampling Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bolt Torque
Calculate maximum tightening torque and preloads for various screws. Analyze preloads and stresses to ensure limits are met. All screw data is conveniently presented on a results page.
- Calculate tightening torque
- Calculate preloads
- Analyze stresses
- Check limits
- View screw data
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Take benefit from my engineering know how and calculate the max. tightening torque and preloads for many iso-metric and imperial screws. Calculate the preloads and stresses and check the limits. All screw data are listed on a result page. This app is a "must have" for all engineers in design departments.
Sampling Calculator
This tool helps calculate sampling plans based on ANSI/ASQ Z1.4 and MIL-STD-105E standards. It supports various sampling size code letters and AQLs for normal, tightened, and reduced inspections. It serves as an aid to understanding and applying these quality control standards.
- ANSI/ASQ Z1.4 2013 compliance
- MIL-STD-105E compliance
- Single sampling size code letters
- Normal, Tightened, and Reduced inspection
- AQLs from 0.065 to 15
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The sampling calculator conforms to ANSI/ASQ Z1.4 2013 and MIL-STD-105E Standards. NOTE: This calculator may be used as an aid to faster calculate the sampling plan needed, and always in conjunction or with the basic knowledge of the ANSI/ASQ Z1.4 standard. It does not replace the standards mentioned above. The sampling calculator covers single sampling size code letters I, II, III, S1, S2, S3 and S4. Normal, Tightened and Reduced with AQLs from 0.065 to 15.
Screenshots
Verdict
Bolt Torque and Sampling Calculator both sit at 5.0 stars, but that hides the real split: 100% of Bolt Torque's written reviews are positive against 50% of Sampling Calculator's. Bolt Torque also leads on update cadence (monthly vs every 16 months). Sampling Calculator's advantage is price ($5.99 vs $9.99) and chart position (#173 vs unranked). On rating, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Bolt Torque costs $9.99 and Sampling Calculator $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Bolt Torque against 5.0 for Sampling Calculator. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 100% of Bolt Torque's written reviews are positive against 50% of Sampling Calculator's.
Bolt Torque ships an update monthly, Sampling Calculator every 16 months. The most recent releases landed on September 6, 2026 and September 10, 2026 respectively.
| Parameter | Bolt Torque | Sampling Calculator |
|---|---|---|
| Price | $9.99 | $5.99 — better |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Monthly — better | Every 16 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #173 — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.6 | 15.6 — better |
| Further details — not scored | ||
| Size | 1 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Jochen Autrata | Juan Manuel Alfredo Sanchez |
Customer experience
Bolt Torque
Sampling Calculator
In-app purchases
Bolt Torque
No in-app purchases
Sampling Calculator
No in-app purchases
Questions
Is Bolt Torque free?
Is Sampling Calculator free?
Which has better reviews, Bolt Torque or Sampling Calculator?
Do Bolt Torque or Sampling Calculator have ads?
Which is updated more often, Bolt Torque or Sampling Calculator?
Other comparisons
