ISO Fits vs Hoffmann Connected Tools HCT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ISO Fits
Calculate ISO fits and tolerances for shafts and bores. Supports metric and inch units, displays detailed fit definitions, and includes visual charts and educational videos.
- ISO fits calculation
- Tolerance class display
- Metric/inch unit switching
- Tolerance charts
- Updated YouTube videos
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It includes the following features: - Fits calculation: Upon entering the nominal diameter (of either bore or shaft), users select their tolerance classes for bore and shaft. The app then provides the complete ISO fits definition with all relevant values. - Tolerances: Shows the tolerances for the most commonly used ISO tolerance classes. - switch between metric and inch version. - Charts: Shows the most common ISO tolerances classes in a diagram. - Videos: Features the automatically updated latest TSS youtube videos. The results of this application are based on DIN ISO 286 Nominal dimension: 1-3150mm following tolerances included: Shaft: a9, a10, a11, a12, a13, b8, b9, b10, b11, b12, b13, c8, c9, c10, c11, c12, cd5, cd6, cd7, cd8, cd9, cd10, d5, d6, d7, d8, d9, d10, d11, d12, d13, e5, e6, e7, e8, e9, e10, ef3, ef4, ef5, ef6, ef7, ef8, ef9, ef10, f3, f4, f5, f6, f7, f8, f9, f10, fg3, fg4, fg5, fg6, fg7, fg8, fg9, fg10, g3, g4, g5, g6, g7, g8, g9, g10, h1, h2, h3, h4, h5, h6, h7, h8, h9, h10, h11, h12, h13, h14, h15, h16, h17, h18, js1, js2, js3, js4, js5, js6, js7, js8, js9, js10, js11, js12, js13, js14, js15, js16, js17, js18, j5, j6, j7, j8, k3, k4, k5, k6, k7, k8, k9, k10, k11, k12, k13, m3, m4, m5, m6, m7, m8, m9, n3, n4, n5, n6, n7, n8, n9, p3, p4, p5, p6, p7, p8, p9, p10, r3, r4, r5, r6, r7, r8, r9, r10, s3, s4, s5, s6, s7, s8, s9, s10, t5, t6, t7, t8, u5, u6, u7, u8, u9, v5, v6, v7, v8, x5, x6, x7, x8, x9, x10, y6, y7, y8, y9, y10, z6, z7, z8, z9, z10, z11, za6, za7, za8, za9, za10, za11, zb7, zb8, zb9, zb10, zb11, zc7, zc8, zc9, zc10, zc11 Bore: A9, A10, A11, A12, A13, B8, B9, B10, B11, B12, B13, C8, C9, C10, C11, C12, C13, CD6, CD7, CD8, CD9, CD10, D6, D7, D8, D9, D10, D11, D12, D13, E5, E6, E7, E8, E9, E10, EF3, EF4, EF5, EF6, EF7, EF8, EF9, EF10, F3, F4, F5, F6, F7, F8, F9, F10, FG3, FG4, FG5, FG6, FG7, FG8, FG9, FG10, G3, G4, G5, G6, G7, G8, G9, G10, H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15, H16, H17, H18, JS1, JS2, JS3, JS4, JS5, JS6, JS7, JS8, JS9, JS10, JS11, JS12, JS13, JS14, JS15, JS16, JS17, JS18, J6, J7, J8, J9, K3, K4, K5, K6, K7, K8, K9, K10, M3, M4, M5, M6, M7, M8, M9, M10, N3, N4, N5, N6, N7, N8, N9, N10, N11, P3, P4, P5, P6, P7, P8, P9, P10, R3, R4, R5, R6, R7, R8, R9, R10, S3, S4, S5, S6, S7, S8, S9, S10, T5, T6, T7, T8, U5, U6, U7, U8, U9, U10, V5, V6, V7, V8, X5, X6, X7, X8, X9, X10, Y6, Y7, Y8, Y9, Y10, Z6, Z7, Z8, Z9, Z10, Z11, ZA6, ZA7, ZA8, ZA9, ZA10, ZA11, ZB7, ZB8, ZB9, ZB10, ZB11, ZC7, ZC8, ZC9, ZC10, ZC11
Hoffmann Connected Tools HCT
This app streamlines quality inspection by precisely determining and storing measurement data. It enables wireless transfer of data via Bluetooth to various devices, saving time on documentation and reducing errors. The application also supports tool identification, status overviews, and calibration certificate retrieval.
- Wireless measurement data transfer via Bluetooth
- Precise determination and storage of measurement data
- Tool and accessory identification
- Linking of tools, accessories, and storage locations
- Status overview of machine tools
- Retrieval of calibration certificates
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Hoffmann Group connected tools The innovative products of the Hoffmann Group connected tools (HCT) guarantee the highest precision and support your quality inspection in an unprecedented way. Measurement data can be precisely determined and stored. The measurement data can then be transferred via Bluetooth to a computer, tablet or smartphone. Save valuable review, documentation, and transfer time and benefit from an easy-to-use application. In concrete terms, this means: - More freedom of movement: No interfering data transmission cables. - Highest reliability: No reading or transmission errors. - Save time thanks to simple documentation: At the touch of a button, the measurement result is transferred directly to your PC application (e.g. Excel or Word) or to your smartphone or tablet. Hoffmann Group "Connected Manufacturing" The HCT app with the integration of many features of Connected Manufacturing supports the user in the daily work. A wide variety of functions are available: - Identify tools, accessories, and storage locations - Linking tools, accessories and storage locations - Status overview of connected machine tools - Inspection and processing of picklists - Complete and start machine operations - Transfer of NC programs to the machine tool Hoffmann Group “Connected Metrology” The HCT app with the integration of many functions of Connected Metrology supports the user in the daily work. A wide variety of functions are available: - Identify measuring equipment and storage locations - Retrieve calibration certificates directly from the smartphone - Linking measuring devices - Inspection and processing of calibration lists
Screenshots
Verdict
The clearest difference is review sentiment: ISO Fits at 95% against Hoffmann Connected Tools HCT's 50%. Hoffmann Connected Tools HCT's advantage is in-app purchases (none vs 1) and update cadence (monthly vs every 5 months). On price, ads, device support and iOS requirement 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. ISO Fits sells 1 one-off in-app purchase. Hoffmann Connected Tools HCT asks for nothing beyond the download.
ISO Fits ships an update every 5 months, Hoffmann Connected Tools HCT monthly. The most recent releases landed on October 16, 2026 and October 11, 2026 respectively.
| Parameter | ISO Fits | Hoffmann Connected Tools HCT |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (6 ratings) — better | — |
| Positive reviews | 94.6% of reviews — better | 50.0% of reviews |
| Number of ratings | 6 — better | — |
| Update frequency | Every 5 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 66 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Trelleborg Sealing Solutions | Hoffmann Group |
Customer experience
ISO Fits
Hoffmann Connected Tools HCT
In-app purchases
ISO Fits
- Full Version with complete ISO286 Standard$1.99
Hoffmann Connected Tools HCT
No in-app purchases
Questions
Is ISO Fits free?
Is Hoffmann Connected Tools HCT free?
Do ISO Fits or Hoffmann Connected Tools HCT have ads?
Which is updated more often, ISO Fits or Hoffmann Connected Tools HCT?
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