Comparison

ThreadFon Multi vs IST+ for Mobile

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ThreadFon Multi

This tool provides detailed insights into metric, inch, pipe, and trapezoidal cylindrical threads based on ISO and ASME standards. It helps users efficiently determine essential thread specifications for various thread types.

Highlights
  • ISO Metric thread support
  • Unified Inch thread support
  • Pipe thread support
  • Trapezoidal thread support
  • Based on ISO 965 and ASME B1.1 standards
  • Determines fundamental thread parameters
Features
Read full description

This application now supports ISO Metric, Unified Inch, Pipe, and Trapezoidal Thread Tolerances, providing detailed insights into the fundamental parameters of metric, inch, pipe, and trapezoidal cylindrical threads. Built on the ISO 965 standard, ASME/ANSI B1.1 standard, ISO 228, ANSI/ASME B1.20.1, ГОСТ 6357-81, and GOST 24737-81 standard. Designed for precision and ease, this tool helps you efficiently determine essential thread specifications for metric, unified inch, pipe, and trapezoidal threads.

About

IST+ for Mobile

Read full description

This program can ensure your information security.

Screenshots

ThreadFon Multi4 screens
IST+ for Mobile4 screens

Verdict

The call

The clearest difference is update cadence: ThreadFon Multi at monthly against IST+ for Mobile's every 8 months. IST+ for Mobile's advantage is iOS requirement (9.0 vs 12.0). On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ThreadFon Multi ships an update monthly, IST+ for Mobile every 8 months. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.

Scorecard2 real differences · 8 level
ThreadFon Multi versus IST+ for Mobile: the parameters behind the verdict, then further details
ParameterThreadFon MultiIST+ for Mobile
PriceFreeFree
Rating3.8 (4 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings4 — better—
Update frequencyMonthly — betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.09.0 — better
Further details — not scored
Size43 MB5 MB
Age rating4+4+
DeveloperDmitriy TrofimovInformation Security Technology Corporation

In-app purchases

None

ThreadFon Multi

No in-app purchases

None

IST+ for Mobile

No in-app purchases

Questions

Is ThreadFon Multi free?
ThreadFon Multi is free to download, with no in-app purchases.
Is IST+ for Mobile free?
IST+ for Mobile is free to download, with no in-app purchases.
Do ThreadFon Multi or IST+ for Mobile have ads?
Neither ThreadFon Multi nor IST+ for Mobile shows ads.
Which is updated more often, ThreadFon Multi or IST+ for Mobile?
ThreadFon Multi ships an update monthly, and IST+ for Mobile every 8 months. Most recently, ThreadFon Multi was updated on September 9, 2026 and IST+ for Mobile on September 10, 2026.

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