Bolt Length vs Integrity Assured
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bolt Length
This application helps calculate the length of metric coarse screws based on Japanese Industrial Standards. It is designed for mechanical design purposes and should be used at the user's own risk.
- Metric coarse screw length calculation
- Conforms to Japanese Industrial Standards (JIS)
- Designed for mechanical design
- User risk disclaimer
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This app is an application for calculating the length of the screw. ※:This app does not guarantee the effectiveness of the combination. ※:Use this application at your own risk. Conforms to the Japanese Industrial Standards (JIS). Screws are all metric coarse screw. For mechanical design. Sorry, Only in Japan.Because using the JIS.
Integrity Assured
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Integrity Assured Mobile app is a new gen software that contains and stores large capacities of engineering calculations with an extensive flange type and material database. Integrity Assured Mobile app provides bolt loads and tool pressures on a range of flanged joints and clamps connections. When used with the correct assembly and built-in tightening procedures, the recommended bolt load values are independently verified to deliver leak-free joints.
Screenshots
Verdict
The clearest difference is in-app purchases: Integrity Assured at none against Bolt Length's 1. Integrity Assured also leads on ads (none vs shown). Bolt Length's advantage is iOS requirement (14.0 vs 17.0). On price, update cadence and device support 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
Both are free to download. Bolt Length sells 1 one-off in-app purchase. Integrity Assured asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 20 months. The most recent releases landed on October 8, 2026 and October 27, 2026 respectively.
| Parameter | Bolt Length | Integrity Assured |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 20 months | Every 20 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 173 MB |
| Age rating | 4+ | 4+ |
| Developer | mitsunori oishi | Enerpac |
In-app purchases
Bolt Length
- Hide Ads$1.99
Integrity Assured
No in-app purchases
Questions
Is Bolt Length free?
Is Integrity Assured free?
Do Bolt Length or Integrity Assured have ads?
Which is updated more often, Bolt Length or Integrity Assured?
Other comparisons
